PHP \u53ef\u4ee5\u751f\u6210\u52a8\u6001\u9875\u9762\u5185\u5bb9<\/p>\n<\/li>\n
PHP \u53ef\u4ee5\u521b\u5efa\u3001\u6253\u5f00\u3001\u8bfb\u53d6\u3001\u5199\u5165\u3001\u5173\u95ed\u670d\u52a1\u5668\u4e0a\u7684\u6587\u4ef6<\/p>\n<\/li>\n
PHP \u53ef\u4ee5\u6536\u96c6\u8868\u5355\u6570\u636e<\/p>\n<\/li>\n
PHP \u53ef\u4ee5\u53d1\u9001\u548c\u63a5\u6536 cookies<\/p>\n<\/li>\n
PHP \u53ef\u4ee5\u6dfb\u52a0\u3001\u5220\u9664\u3001\u4fee\u6539\u60a8\u7684\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e<\/p>\n<\/li>\n
PHP \u53ef\u4ee5\u9650\u5236\u7528\u6237\u8bbf\u95ee\u60a8\u7684\u7f51\u7ad9\u4e0a\u7684\u4e00\u4e9b\u9875\u9762<\/p>\n<\/li>\n
PHP \u53ef\u4ee5\u52a0\u5bc6\u6570\u636e<\/p>\n<\/li>\n<\/ol>\n
\u57fa\u672c\u8bed\u6cd5<\/h1>\n
PHP \u811a\u672c\u4ee5 <?php \u5f00\u59cb\uff0c\u4ee5 ?> \u7ed3\u675f<\/p>\n
<?php<\/p>\n
\/\/php \u811a\u672c\u7684\u57fa\u672c\u683c\u5f0f<\/p>\n
\/*<\/p>\n
- \n
- \n
\u591a\u884c\u6ce8\u91ca\uff0c\u8ddf java \u7684\u6ce8\u91ca\u65b9\u6cd5\u76f8\u540c<\/p>\n<\/li>\n
- \n
*\/<\/p>\n<\/li>\n<\/ul>\n
\u53d8\u91cf\u7684\u547d\u540d<\/h2>\n
\u53d8\u91cf\u4ee5 $ \u7b26\u53f7\u5f00\u59cb\uff0c\u540e\u9762\u8ddf\u7740\u53d8\u91cf\u7684\u540d\u79f0<\/p>\n
\u53d8\u91cf\u540d\u5fc5\u987b\u4ee5\u5b57\u6bcd\u6216\u8005\u4e0b\u5212\u7ebf\u5b57\u7b26\u5f00\u59cb<\/p>\n
\u53d8\u91cf\u540d\u53ea\u80fd\u5305\u542b\u5b57\u6bcd\u6570\u5b57\u5b57\u7b26\u4ee5\u53ca\u4e0b\u5212\u7ebf\uff08A-z\u30010-9 \u548c _ \uff09<\/p>\n
\u53d8\u91cf\u540d\u4e0d\u80fd\u5305\u542b\u7a7a\u683c<\/p>\n
\/\/php \u7684\u53d8\u91cf\u58f0\u660e\u662f\u4ee5$\u5f00\u59cb\u7684<\/p>\n
$num = 3.14;<\/p>\n
$str = "hello";<\/p>\n
\u5173\u952e\u5b57<\/strong><\/p>\n
\/*static \u7684\u5173\u952e\u5b57\u7684\u4f7f\u7528<\/p>\n
- \n
- \n
\u5f53\u4e00\u4e2a\u51fd\u6570\u5b8c\u6210\u65f6\uff0c\u5b83\u7684\u6240\u6709\u53d8\u91cf\u901a\u5e38\u90fd\u4f1a\u88ab\u5220\u9664\u3002<\/p>\n<\/li>\n
- \n
\u7136\u800c\uff0c\u6709\u65f6\u5019\u60a8\u5e0c\u671b\u67d0\u4e2a\u5c40\u90e8\u53d8\u91cf\u4e0d\u8981\u88ab\u5220\u9664\u3002<\/p>\n<\/li>\n
- \n
\u8981\u505a\u5230\u8fd9\u4e00\u70b9\uff0c\u8bf7\u5728\u60a8\u7b2c\u4e00\u6b21\u58f0\u660e\u53d8\u91cf\u65f6\u4f7f\u7528 static \u5173\u952e\u5b57\uff1a<\/p>\n<\/li>\n
- \n
*\/<\/p>\n<\/li>\n<\/ul>\n
function test(){\nstatic $n=0;\n$n++;\necho \"\u8c03\u7528\u4e86\u4e00\u6b21\".$n.\"n\";\n}\ntest();test();test();\n?><\/code><\/pre>\n\u6570\u636e\u7c7b\u578b\u3001\u5e38\u91cf\u53ca\u5b57\u7b26\u4e32<\/h2>\n
php \u6709 5 \u79cd\u6570\u636e\u7c7b\u578b\uff1a<\/p>\n
String\uff08\u5b57\u7b26\u4e32\uff09, Integer\uff08\u6574\u578b\uff09, Float\uff08\u6d6e\u70b9\u578b\uff09,<\/p>\n
Boolean\uff08\u5e03\u5c14\u578b\uff09, Array\uff08\u6570\u7ec4\uff09, Object\uff08\u5bf9\u8c61\uff09, NULL\uff08\u7a7a\u503c\uff09\u3002<\/p>\n
<?php\n$a = \"\u5b57\u7b26\u4e32\u7c7b\u578b\";\n$b = 1234;\/\/\u6574\u5f62\n$c = -3.1415;\/\/\u6d6e\u70b9\u578b\n$d = 8E-3;\n$e = true;\/\/boolean \u7c7b\u578b\n$f = array(\"A\",\"B\",\"C\");\/\/\u6570\u7ec4\u7c7b\u578b\nclass obj{\/\/php \u5bf9\u8c61\u7684\u58f0\u660e\nvar $num;\nfunction name() { }\n}\n$o = new obj();\/\/\u5bf9\u8c61\u5b9e\u4f8b\u5316\u7c7b\u578b\n$g = NULL;\/\/NULL\nvar_dump($a);var_dump($b);var_dump($c);var_dump($d);\nvar_dump($e);var_dump($f);var_dump($o);var_dump($g);\n?><\/code><\/pre>\n\u5e38\u91cf\uff1a\u5e38\u91cf\u662f\u4e00\u4e2a\u7b80\u5355\u503c\u7684\u6807\u8bc6\u7b26\u3002\u8be5\u503c\u5728\u811a\u672c\u4e2d\u4e0d\u80fd\u6539\u53d8\u3002\uff08\u5728\u6574\u4e2a\u811a\u672c\u4e2d\u90fd<\/p>\n
\u80fd\u4f7f\u7528\uff09<\/p>\n
\u4e00\u4e2a\u5e38\u91cf\u7531\u82f1\u6587\u5b57\u6bcd\u3001\u4e0b\u5212\u7ebf\u3001\u548c\u6570\u5b57\u7ec4\u6210,\u4f46\u6570\u5b57\u4e0d\u80fd\u4f5c\u4e3a\u9996\u5b57\u6bcd\u51fa\u73b0\u3002 (\u5e38\u91cf<\/p>\n
\u540d\u4e0d\u9700\u8981\u52a0 $ \u4fee\u9970\u7b26)\u3002<\/p>\n
\u8bbe\u7f6e\u5e38\u91cf\uff0c\u4f7f\u7528 define() \u51fd\u6570\uff0c\u51fd\u6570\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n
bool define ( string $name , mixed $value [, bool $case_insensitive = false ] )<\/p>\n
\u8be5\u51fd\u6570\u6709\u4e09\u4e2a\u53c2\u6570:<\/p>\n
name\uff1a\u5fc5\u9009\u53c2\u6570\uff0c\u5e38\u91cf\u540d\u79f0\uff0c\u5373\u6807\u5fd7\u7b26\u3002<\/p>\n
value\uff1a\u5fc5\u9009\u53c2\u6570\uff0c\u5e38\u91cf\u7684\u503c\u3002<\/p>\n
case_insensitive \uff1a\u53ef\u9009\u53c2\u6570\uff0c\u5982\u679c\u8bbe\u7f6e\u4e3a TRUE\uff0c\u8be5\u5e38\u91cf\u5219\u5927\u5c0f\u5199\u4e0d\u654f\u611f\u3002\u9ed8<\/p>\n
\u8ba4\u662f\u5927\u5c0f\u5199\u654f\u611f\u7684\u3002<\/p>\n
<?php\n\/\/ \u5e38\u91cf\ndefine(\"CL\", \"\u8fd9\u662f\u4e00\u4e2a\u5168\u5c40\u5e38\u91cf\", true);\necho CL; \/\/ \u9ed8\u8ba4 false\uff0c\u53d8\u91cf\u540d\u533a\u5206\u5927\u5c0f\u5199\necho cl; \/\/ true \u4e0d\u533a\u5206\u5927\u5c0f\u5199\n?><\/code><\/pre>\n\u9884\u5b9a\u4e49\u5e38\u91cf<\/h3>\n
PHP \u9884\u5b9a\u4e49\u4e86\u8bb8\u591a\u5e38\u91cf\uff0c\u8fd9\u4e9b\u5e38\u91cf\u65e0\u9700\u4f7f\u7528 define()\u51fd\u6570\u5b9a\u4e49\uff0c\u53ef\u76f4\u63a5\u5728\u7a0b\u5e8f\u4e2d<\/p>\n
\u4f7f\u7528\u3002\u4e0b\u9762\u5217\u4e3e\u4e86\u4e00\u4e9b\u5e38\u7528\u7684 PHP \u9884\u5b9a\u4e49\u5e38\u91cf\u3002<\/p>\n
\uff081\uff09FILE<\/strong>(FILE \u524d\u540e\u5206\u522b\u662f\u4e24\u4e2a\u4e0b\u753b\u7ebf)\uff1a\u5f53\u524d\u6b63\u5728\u5904\u7406\u7684\u811a\u672c\u6587\u4ef6\u540d\uff0c\u82e5<\/p>\n
\u4f7f\u7528\u5728\u4e00\u4e2a\u88ab\u5f15\u7528\u7684\u6587\u4ef6\u4e2d\uff08include \u6216 require\uff09\uff0c\u90a3\u4e48 \u5b83\u7684\u503c\u5c31\u662f\u88ab\u5f15\u7528<\/p>\n
\u7684\u6587\u4ef6\uff0c\u800c\u4e0d\u662f\u5f15\u7528\u5b83\u7684\u90a3\u4e2a\u6587\u4ef6\u3002<\/p>\n
\uff082\uff09LINE<\/strong>(LINE \u524d\u540e\u5206\u522b\u662f\u4e24\u4e2a\u4e0b\u753b\u7ebf)\uff1a\u6b63\u5728\u5904\u7406\u7684\u811a\u672c\u6587\u4ef6\u7684\u5f53\u524d\u884c\u6570\u3002<\/p>\n
\uff083\uff09PHP_VERSION\uff1a\u5f53\u524d PHP \u9884\u5904\u7406\u5668\u7684\u7248\u672c\uff0c\u5982 5.4.16\u3002<\/p>\n
\uff084\uff09PHP_OS: PHP \u6240\u5728\u7684\u64cd\u4f5c\u7cfb\u7edf\u7684\u7c7b\u578b\u3002\u5982 Linux\u3002<\/p>\n
\uff085\uff09TRUE\uff1a\u8868\u793a\u903b\u8f91\u771f\u3002FALSE\uff1a\u8868\u793a\u903b\u8f91\u5047\u3002NULL\uff1a\u8868\u793a\u6ca1\u6709\u503c\u6216\u503c\u4e0d\u786e<\/p>\n
\u5b9a\u3002<\/p>\n
\uff086\uff09DIRECTORY_SEPARATOR: \u8868\u793a\u76ee\u5f55\u5206\u9694\u7b26\uff0cUNIX \u6216 Linux \u64cd\u4f5c\u7cfb\u7edf\u73af<\/p>\n
\u5883\u65f6\u7684\u503c\u4e3a\u201c \/ \u201d, Window \u64cd\u4f5c\u7cfb\u7edf\u73af\u5883\u65f6\u7684\u503c\u4e3a \u201c \u201d\u3002<\/p>\n
<?php\necho __FILE__;\necho \"<br\/>\";\necho __LINE__;\necho \"<br\/>\";\necho PHP_VERSION;\necho \"<br\/>\";\necho PHP_OS;\necho \"<br\/>\";\necho DIRECTORY_SEPARATOR;\n?><\/code><\/pre>\n\u6574\u578b<\/h3>\n
\u6574\u6570\u7c7b\u578b\uff1a\u4fdd\u5b58\u6574\u6570\u6570\u503c\uff08\u8303\u56f4\u9650\u5236\uff09\uff0c4 \u4e2a\u5b57\u8282\u5b58\u50a8\u6570\u636e\u3002PHP \u4e2d\u9ed8\u8ba4\u4e3a\u6709\u7b26<\/p>\n
\u53f7\u3002<\/p>\n
\u5728 PHP \u4e2d\u63d0\u4f9b\u56db\u79cd\u6574\u5f62\u7684\u5b9a\u4e49\u65b9\u5f0f\uff0c\u5341\u8fdb\u5236\u5b9a\u4e49\uff0c\u4e8c\u8fdb\u5236\u5b9a\u4e49\uff0c\u516b\u8fdb\u5236\u5b9a\u4e49\u548c<\/p>\n
\u5341\u516d\u8fdb\u5236\u5b9a\u4e49<\/p>\n
$a = 120 \/\/\u5341\u8fdb\u5236<\/p>\n
$a = 0b110 \/\/\u4e8c\u8fdb\u5236<\/p>\n
$a = 0120 \/\/\u516b\u8fdb\u5236<\/p>\n
$a = 0x120 \/\/\u5341\u516d\u8fdb\u5236<\/p>\n
\/\/ \u4f7f\u7528 echo \u8f93\u51fa\u65f6\u3002\u9ed8\u8ba4\u8f93\u51fa\u4e3a\u5341\u8fdb\u5236<\/p>\n
decbin() \/\/ \u5341\u8fdb\u5236\u8f6c\u4e8c\u8fdb\u5236<\/p>\n
decoct() \/\/ \u5341\u8fdb\u5236\u8f6c\u516b\u8fdb\u5236<\/p>\n
dechex() \/\/ \u5341\u8fdb\u5236\u8f6c\u5341\u516d\u8fdb\u5236<\/p>\n
bindec() \/\/ \u4e8c\u8fdb\u5236\u8f6c\u5341\u8fdb\u5236<\/p>\n
bin2hex() \/\/\u4e8c\u8fdb\u5236\u8f6c\u5341\u516d\u8fdb\u5236<\/p>\n
\u5b57\u7b26\u4e32<\/h3>\n
\u5b57\u7b26\u4e32\u53d8\u91cf\u7528\u4e8e\u5b58\u50a8\u5e76\u5904\u7406\u6587\u672c\u3002<\/p>\n
<?php\n$name='yuhui';\n\/\/\u53cc\u5f15\u53f7 \u91cc\u9762\u6709\u53d8\u91cf \u4f1a \u8f93\u51fa\u53d8\u91cf\u7684\u503c\n$str =\"\u8fd9\u662f $name \u7684\u5168\u6808\u6e17\u900f\u6d4b\u8bd5\u57f9\u8bad\uff0c\u8fd9\u662f\u4e00\u4e2a\u6bd4\u8f83\u9ad8\u8d28\u91cf\u7684\u8bfe\u7a0b\uff0c\u4e00\u4e2a\u5f88\n\u5927\u7684\u4f53\u7cfb \u6b22\u8fce\u6765\u5b66\u4e60\u3002\";\n\/\/\u5355\u5f15\u53f7 \u5982\u679c\u91cc\u9762\u6709\u53d8\u91cf\u90fd\u4f5c\u4e3a\u4e00\u4e2a\u5b57\u7b26\u4e32\u5904\u7406\n$str1 ='\u8fd9\u662f $name \u7684\u5168\u6808\u6e17\u900f\u6d4b\u8bd5\u57f9\u8bad\uff0c\u8fd9\u662f\u4e00\u4e2a\u6bd4\u8f83\u9ad8\u8d28\u91cf\u7684\u8bfe\u7a0b\uff0c\u4e00\u4e2a\u5f88\n\u5927\u7684\u4f53\u7cfb \u6b22\u8fce\u6765\u5b66\u4e60\u3002';\necho $str;\necho $str1;\n<?php\n\/\/ \u5b57\u7b26\u4e32\n$text1 = \"hello\";\n$text2 = \"world\";\necho $text1 . \" \" . $text2; \/\/ \".\"\u662f\u5e76\u7f6e\u8fd0\u7b97\u7b26\uff08\u8fde\u63a5\uff09\necho \"\u8fd4\u56de\u5b57\u7b26\u4e32\u7684\u957f\u5ea6\uff1a\", strlen($text1);\necho \"\u8fd4\u56de\u5b50\u4e32\u7684\u7b2c\u4e00\u6b21\u4f4d\u7f6e\uff1a\", strpos($text1, \"l\");\n?><\/code><\/pre>\n\u5b57\u7b26\u7684\u64cd\u4f5c\u51fd\u6570<\/p>\n
addcslashes \u2014 \u4ee5 C \u8bed\u8a00\u98ce\u683c\u4f7f\u7528\u53cd\u659c\u7ebf\u8f6c\u4e49\u5b57\u7b26\u4e32\u4e2d\u7684\u5b57\u7b26<\/p>\n
addslashes \u2014 \u4f7f\u7528\u53cd\u659c\u7ebf\u5f15\u7528\u5b57\u7b26\u4e32<\/p>\n
bin2hex \u2014 \u51fd\u6570\u628a\u5305\u542b\u6570\u636e\u7684\u4e8c\u8fdb\u5236\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u5341\u516d\u8fdb\u5236\u503c<\/p>\n
chop \u2014 rtrim \u7684\u522b\u540d<\/p>\n
chr \u2014 \u8fd4\u56de\u6307\u5b9a\u7684\u5b57\u7b26<\/p>\n
chunk_split \u2014 \u5c06\u5b57\u7b26\u4e32\u5206\u5272\u6210\u5c0f\u5757<\/p>\n
convert_cyr_string \u2014 \u5c06\u5b57\u7b26\u7531\u4e00\u79cd Cyrillic \u5b57\u7b26\u8f6c\u6362\u6210\u53e6\u4e00\u79cd<\/p>\n
convert_uudecode \u2014 \u89e3\u7801\u4e00\u4e2a uuencode \u7f16\u7801\u7684\u5b57\u7b26\u4e32<\/p>\n
convert_uuencode \u2014 \u4f7f\u7528 uuencode \u7f16\u7801\u4e00\u4e2a\u5b57\u7b26\u4e32<\/p>\n
count_chars \u2014 \u8fd4\u56de\u5b57\u7b26\u4e32\u6240\u7528\u5b57\u7b26\u7684\u4fe1\u606f<\/p>\n
crc32 \u2014 \u8ba1\u7b97\u4e00\u4e2a\u5b57\u7b26\u4e32\u7684 crc32 \u591a\u9879\u5f0f<\/p>\n
crypt \u2014 \u5355\u5411\u5b57\u7b26\u4e32\u6563\u5217<\/p>\n
echo \u2014 \u8f93\u51fa\u4e00\u4e2a\u6216\u591a\u4e2a\u5b57\u7b26\u4e32<\/p>\n
explode \u2014 \u4f7f\u7528\u4e00\u4e2a\u5b57\u7b26\u4e32\u5206\u5272\u53e6\u4e00\u4e2a\u5b57\u7b26\u4e32<\/p>\n
fprintf \u2014 \u5c06\u683c\u5f0f\u5316\u540e\u7684\u5b57\u7b26\u4e32\u5199\u5165\u5230\u6d41<\/p>\n
get_html_translation_table \u2014 \u8fd4\u56de\u4f7f\u7528 htmlspecialchars \u548c htmlentities \u540e\u7684\u8f6c\u6362<\/p>\n
\u8868<\/p>\n
hebrev \u2014 \u5c06\u903b\u8f91\u987a\u5e8f\u5e0c\u4f2f\u6765\u6587\uff08logical-Hebrew\uff09\u8f6c\u6362\u4e3a\u89c6\u89c9\u987a\u5e8f\u5e0c\u4f2f\u6765\u6587<\/p>\n
\uff08visual-Hebrew\uff09<\/p>\n
hebrevc \u2014 \u5c06\u903b\u8f91\u987a\u5e8f\u5e0c\u4f2f\u6765\u6587\uff08logical-Hebrew\uff09\u8f6c\u6362\u4e3a\u89c6\u89c9\u987a\u5e8f\u5e0c\u4f2f\u6765\u6587<\/p>\n
\uff08visual-Hebrew\uff09\uff0c\u5e76\u4e14\u8f6c\u6362\u6362\u884c\u7b26<\/p>\n
hex2bin \u2014 \u8f6c\u6362\u5341\u516d\u8fdb\u5236\u5b57\u7b26\u4e32\u4e3a\u4e8c\u8fdb\u5236\u5b57\u7b26\u4e32<\/p>\n
html_entity_decode \u2014 Convert HTML entities to their corresponding characters<\/p>\n
htmlentities \u2014 \u5c06\u5b57\u7b26\u8f6c\u6362\u4e3a HTML \u8f6c\u4e49\u5b57\u7b26<\/p>\n
htmlspecialchars_decode \u2014 \u5c06\u7279\u6b8a\u7684 HTML \u5b9e\u4f53\u8f6c\u6362\u56de\u666e\u901a\u5b57\u7b26<\/p>\n
htmlspecialchars \u2014 \u5c06\u7279\u6b8a\u5b57\u7b26\u8f6c\u6362\u4e3a HTML \u5b9e\u4f53<\/p>\n
implode \u2014 \u5c06\u4e00\u4e2a\u4e00\u7ef4\u6570\u7ec4\u7684\u503c\u8f6c\u5316\u4e3a\u5b57\u7b26\u4e32<\/p>\n
join \u2014 \u522b\u540d implode<\/p>\n
lcfirst \u2014 \u4f7f\u4e00\u4e2a\u5b57\u7b26\u4e32\u7684\u7b2c\u4e00\u4e2a\u5b57\u7b26\u5c0f\u5199<\/p>\n
levenshtein \u2014 \u8ba1\u7b97\u4e24\u4e2a\u5b57\u7b26\u4e32\u4e4b\u95f4\u7684\u7f16\u8f91\u8ddd\u79bb<\/p>\n
localeconv \u2014 Get numeric formatting information<\/p>\n
ltrim \u2014 \u5220\u9664\u5b57\u7b26\u4e32\u5f00\u5934\u7684\u7a7a\u767d\u5b57\u7b26\uff08\u6216\u5176\u4ed6\u5b57\u7b26\uff09<\/p>\n
md5_file \u2014 \u8ba1\u7b97\u6307\u5b9a\u6587\u4ef6\u7684 MD5 \u6563\u5217\u503c<\/p>\n
md5 \u2014 \u8ba1\u7b97\u5b57\u7b26\u4e32\u7684 MD5 \u6563\u5217\u503c<\/p>\n
metaphone \u2014 Calculate the metaphone key of a string<\/p>\n
money_format \u2014 \u5c06\u6570\u5b57\u683c\u5f0f\u5316\u6210\u8d27\u5e01\u5b57\u7b26\u4e32<\/p>\n
nl_langinfo \u2014 Query language and locale information<\/p>\n
nl2br \u2014 \u5728\u5b57\u7b26\u4e32\u6240\u6709\u65b0\u884c\u4e4b\u524d\u63d2\u5165 HTML \u6362\u884c\u6807\u8bb0<\/p>\n
number_format \u2014 \u4ee5\u5343\u4f4d\u5206\u9694\u7b26\u65b9\u5f0f\u683c\u5f0f\u5316\u4e00\u4e2a\u6570\u5b57<\/p>\n
ord \u2014 \u8f6c\u6362\u5b57\u7b26\u4e32\u7b2c\u4e00\u4e2a\u5b57\u8282\u4e3a 0-255 \u4e4b\u95f4\u7684\u503c<\/p>\n
parse_str \u2014 \u5c06\u5b57\u7b26\u4e32\u89e3\u6790\u6210\u591a\u4e2a\u53d8\u91cf<\/p>\n
print \u2014 \u8f93\u51fa\u5b57\u7b26\u4e32<\/p>\n
printf \u2014 \u8f93\u51fa\u683c\u5f0f\u5316\u5b57\u7b26\u4e32<\/p>\n
quoted_printable_decode \u2014 \u5c06 quoted-printable \u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a 8-bit \u5b57\u7b26\u4e32<\/p>\n
quoted_printable_encode \u2014 \u5c06 8-bit \u5b57\u7b26\u4e32\u8f6c\u6362\u6210 quoted-printable \u5b57\u7b26\u4e32<\/p>\n
quotemeta \u2014 \u8f6c\u4e49\u5143\u5b57\u7b26\u96c6<\/p>\n
rtrim \u2014 \u5220\u9664\u5b57\u7b26\u4e32\u672b\u7aef\u7684\u7a7a\u767d\u5b57\u7b26\uff08\u6216\u8005\u5176\u4ed6\u5b57\u7b26\uff09<\/p>\n
setlocale \u2014 \u8bbe\u7f6e\u5730\u533a\u4fe1\u606f<\/p>\n
sha1_file \u2014 \u8ba1\u7b97\u6587\u4ef6\u7684 sha1 \u6563\u5217\u503c<\/p>\n
sha1 \u2014 \u8ba1\u7b97\u5b57\u7b26\u4e32\u7684 sha1 \u6563\u5217\u503c<\/p>\n
similar_text \u2014 \u8ba1\u7b97\u4e24\u4e2a\u5b57\u7b26\u4e32\u7684\u76f8\u4f3c\u5ea6<\/p>\n
soundex \u2014 Calculate the soundex key of a string<\/p>\n
sprintf \u2014 Return a formatted string<\/p>\n
sscanf \u2014 \u6839\u636e\u6307\u5b9a\u683c\u5f0f\u89e3\u6790\u8f93\u5165\u7684\u5b57\u7b26<\/p>\n
str_contains \u2014 Determine if a string contains a given substring<\/p>\n
str_ends_with \u2014 Checks if a string ends with a given substring<\/p>\n
str_getcsv \u2014 \u89e3\u6790 CSV \u5b57\u7b26\u4e32\u4e3a\u4e00\u4e2a\u6570\u7ec4<\/p>\n
str_ireplace \u2014 str_replace \u7684\u5ffd\u7565\u5927\u5c0f\u5199\u7248\u672c<\/p>\n
str_pad \u2014 \u4f7f\u7528\u53e6\u4e00\u4e2a\u5b57\u7b26\u4e32\u586b\u5145\u5b57\u7b26\u4e32\u4e3a\u6307\u5b9a\u957f\u5ea6<\/p>\n
str_repeat \u2014 \u91cd\u590d\u4e00\u4e2a\u5b57\u7b26\u4e32<\/p>\n
str_replace \u2014 \u5b50\u5b57\u7b26\u4e32\u66ff\u6362<\/p>\n
str_rot13 \u2014 \u5bf9\u5b57\u7b26\u4e32\u6267\u884c ROT13 \u8f6c\u6362<\/p>\n
str_shuffle \u2014 \u968f\u673a\u6253\u4e71\u4e00\u4e2a\u5b57\u7b26\u4e32<\/p>\n
str_split \u2014 \u5c06\u5b57\u7b26\u4e32\u8f6c\u6362\u4e3a\u6570\u7ec4<\/p>\n
str_starts_with \u2014 Checks if a string starts with a given substring<\/p>\n
str_word_count \u2014 \u8fd4\u56de\u5b57\u7b26\u4e32\u4e2d\u5355\u8bcd\u7684\u4f7f\u7528\u60c5\u51b5<\/p>\n
strcasecmp \u2014 \u4e8c\u8fdb\u5236\u5b89\u5168\u6bd4\u8f83\u5b57\u7b26\u4e32\uff08\u4e0d\u533a\u5206\u5927\u5c0f\u5199\uff09<\/p>\n
strchr \u2014 \u522b\u540d strstr<\/p>\n
strcmp \u2014 \u4e8c\u8fdb\u5236\u5b89\u5168\u5b57\u7b26\u4e32\u6bd4\u8f83<\/p>\n
strcoll \u2014 \u57fa\u4e8e\u533a\u57df\u8bbe\u7f6e\u7684\u5b57\u7b26\u4e32\u6bd4\u8f83<\/p>\n
strcspn \u2014 \u83b7\u53d6\u4e0d\u5339\u914d\u906e\u7f69\u7684\u8d77\u59cb\u5b50\u5b57\u7b26\u4e32\u7684\u957f\u5ea6<\/p>\n
strip_tags \u2014 \u4ece\u5b57\u7b26\u4e32\u4e2d\u53bb\u9664 HTML \u548c PHP \u6807\u8bb0<\/p>\n
stripcslashes \u2014 \u53cd\u5f15\u7528\u4e00\u4e2a\u4f7f\u7528 addcslashes \u8f6c\u4e49\u7684\u5b57\u7b26\u4e32<\/p>\n
stripos \u2014 \u67e5\u627e\u5b57\u7b26\u4e32\u9996\u6b21\u51fa\u73b0\u7684\u4f4d\u7f6e\uff08\u4e0d\u533a\u5206\u5927\u5c0f\u5199\uff09<\/p>\n
stripslashes \u2014 \u53cd\u5f15\u7528\u4e00\u4e2a\u5f15\u7528\u5b57\u7b26\u4e32<\/p>\n
stristr \u2014 strstr \u51fd\u6570\u7684\u5ffd\u7565\u5927\u5c0f\u5199\u7248\u672c<\/p>\n
strlen \u2014 \u83b7\u53d6\u5b57\u7b26\u4e32\u957f\u5ea6<\/p>\n
strnatcasecmp \u2014 \u4f7f\u7528\u201c\u81ea\u7136\u987a\u5e8f\u201d\u7b97\u6cd5\u6bd4\u8f83\u5b57\u7b26\u4e32\uff08\u4e0d\u533a\u5206\u5927\u5c0f\u5199\uff09<\/p>\n
strnatcmp \u2014 \u4f7f\u7528\u81ea\u7136\u6392\u5e8f\u7b97\u6cd5\u6bd4\u8f83\u5b57\u7b26\u4e32<\/p>\n
strncasecmp \u2014 \u4e8c\u8fdb\u5236\u5b89\u5168\u6bd4\u8f83\u5b57\u7b26\u4e32\u5f00\u5934\u7684\u82e5\u5e72\u4e2a\u5b57\u7b26\uff08\u4e0d\u533a\u5206\u5927\u5c0f\u5199\uff09<\/p>\n
strncmp \u2014 \u4e8c\u8fdb\u5236\u5b89\u5168\u6bd4\u8f83\u5b57\u7b26\u4e32\u5f00\u5934\u7684\u82e5\u5e72\u4e2a\u5b57\u7b26<\/p>\n
strpbrk \u2014 \u5728\u5b57\u7b26\u4e32\u4e2d\u67e5\u627e\u4e00\u7ec4\u5b57\u7b26\u7684\u4efb\u4f55\u4e00\u4e2a\u5b57\u7b26<\/p>\n
strpos \u2014 \u67e5\u627e\u5b57\u7b26\u4e32\u9996\u6b21\u51fa\u73b0\u7684\u4f4d\u7f6e<\/p>\n
strrchr \u2014 \u67e5\u627e\u6307\u5b9a\u5b57\u7b26\u5728\u5b57\u7b26\u4e32\u4e2d\u7684\u6700\u540e\u4e00\u6b21\u51fa\u73b0<\/p>\n
strrev \u2014 \u53cd\u8f6c\u5b57\u7b26\u4e32<\/p>\n
strripos \u2014 \u8ba1\u7b97\u6307\u5b9a\u5b57\u7b26\u4e32\u5728\u76ee\u6807\u5b57\u7b26\u4e32\u4e2d\u6700\u540e\u4e00\u6b21\u51fa\u73b0\u7684\u4f4d\u7f6e\uff08\u4e0d\u533a\u5206\u5927\u5c0f\u5199\uff09<\/p>\n
strrpos \u2014 \u8ba1\u7b97\u6307\u5b9a\u5b57\u7b26\u4e32\u5728\u76ee\u6807\u5b57\u7b26\u4e32\u4e2d\u6700\u540e\u4e00\u6b21\u51fa\u73b0\u7684\u4f4d\u7f6e<\/p>\n
strspn \u2014 \u8ba1\u7b97\u5b57\u7b26\u4e32\u4e2d\u5168\u90e8\u5b57\u7b26\u90fd\u5b58\u5728\u4e8e\u6307\u5b9a\u5b57\u7b26\u96c6\u5408\u4e2d\u7684\u7b2c\u4e00\u6bb5\u5b50\u4e32\u7684\u957f\u5ea6\u3002<\/p>\n
strstr \u2014 \u67e5\u627e\u5b57\u7b26\u4e32\u7684\u9996\u6b21\u51fa\u73b0<\/p>\n
strtok \u2014 \u6807\u8bb0\u5206\u5272\u5b57\u7b26\u4e32<\/p>\n
strtolower \u2014 \u5c06\u5b57\u7b26\u4e32\u8f6c\u5316\u4e3a\u5c0f\u5199<\/p>\n
strtoupper \u2014 \u5c06\u5b57\u7b26\u4e32\u8f6c\u5316\u4e3a\u5927\u5199<\/p>\n
strtr \u2014 \u8f6c\u6362\u6307\u5b9a\u5b57\u7b26<\/p>\n
substr_compare \u2014 \u4e8c\u8fdb\u5236\u5b89\u5168\u6bd4\u8f83\u5b57\u7b26\u4e32\uff08\u4ece\u504f\u79fb\u4f4d\u7f6e\u6bd4\u8f83\u6307\u5b9a\u957f\u5ea6\uff09<\/p>\n
substr_count \u2014 \u8ba1\u7b97\u5b57\u4e32\u51fa\u73b0\u7684\u6b21\u6570<\/p>\n
substr_replace \u2014 \u66ff\u6362\u5b57\u7b26\u4e32\u7684\u5b50\u4e32<\/p>\n
substr \u2014 \u8fd4\u56de\u5b57\u7b26\u4e32\u7684\u5b50\u4e32<\/p>\n
trim \u2014 \u53bb\u9664\u5b57\u7b26\u4e32\u9996\u5c3e\u5904\u7684\u7a7a\u767d\u5b57\u7b26\uff08\u6216\u8005\u5176\u4ed6\u5b57\u7b26\uff09<\/p>\n
ucfirst \u2014 \u5c06\u5b57\u7b26\u4e32\u7684\u9996\u5b57\u6bcd\u8f6c\u6362\u4e3a\u5927\u5199<\/p>\n
ucwords \u2014 \u5c06\u5b57\u7b26\u4e32\u4e2d\u6bcf\u4e2a\u5355\u8bcd\u7684\u9996\u5b57\u6bcd\u8f6c\u6362\u4e3a\u5927\u5199<\/p>\n
vfprintf \u2014 \u5c06\u683c\u5f0f\u5316\u5b57\u7b26\u4e32\u5199\u5165\u6d41<\/p>\n
vprintf \u2014 \u8f93\u51fa\u683c\u5f0f\u5316\u5b57\u7b26\u4e32<\/p>\n
vsprintf \u2014 \u8fd4\u56de\u683c\u5f0f\u5316\u5b57\u7b26\u4e32<\/p>\n
wordwrap \u2014 \u6253\u65ad\u5b57\u7b26\u4e32\u4e3a\u6307\u5b9a\u6570\u91cf\u7684\u5b57\u4e32<\/p>\n
<?php\n$name='yuhui';\n\/\/\u53cc\u5f15\u53f7 \u91cc\u9762\u6709\u53d8\u91cf \u4f1a \u8f93\u51fa\u53d8\u91cf\u7684\u503c\n\/\/$str =\" \u8fd9\u662f $name \u7684\u5168\u6808\u6e17\u900f\u6d4b\u8bd5\u57f9\u8bad\uff0c\u8fd9\u662f\u4e00\u4e2a\u6bd4\u8f83\u9ad8\u8d28\u91cf\u7684\u8bfe\u7a0b\uff0c\u4e00\u4e2a\n\u5f88\u5927\u7684\u4f53\u7cfb \u6b22\u8fce\u6765\u5b66\u4e60\u3002 \";\n\/\/\u5355\u5f15\u53f7 \u5982\u679c\u91cc\u9762\u6709\u53d8\u91cf\u90fd\u4f5c\u4e3a\u4e00\u4e2a\u5b57\u7b26\u4e32\u5904\u7406\n\/\/$str1 ='\u8fd9\u662f $name \u7684\u5168\u6808\u6e17\u900f\u6d4b\u8bd5\u57f9\u8bad\uff0c\u8fd9\u662f\u4e00\u4e2a\u6bd4\u8f83\u9ad8\u8d28\u91cf\u7684\u8bfe\u7a0b\uff0c\u4e00\u4e2a\n\u5f88\u5927\u7684\u4f53\u7cfb \u6b22\u8fce\u6765\u5b66\u4e60\u3002';\n$a='123456';\n\/\/echo $str.\" \u4e00\u5171\u6709 \".strlen($a).\"\u5b57\u7b26\";\n\/\/\u53bb\u6389\u7a7a\u683c\n\/\/echo trim($str);\n\/\/echo $str1;\n\/\/\u67e5\u627e\u5b57\u7b26\u4e32 \u8fd4\u56de\u4f4d\u7f6e\n\/\/echo strpos($str,'yuhui');\n\/\/\u622a\u53d6\u5b57\u7b26\u4e32\n\/\/echo substr($str,strpos($str,'yuhui'),strpos($str,'\u57f9\u8bad'));\n\/\/md5 \u52a0\u5bc6\n\/\/echo md5($a);\n\/\/\u901a\u8fc7\u4e0b\u6807 \u53d6\u5b57\u7b26\u7684\u503c\n\/\/echo $a[0];\n\/\/\u5b57\u7b26\u4e32\u66ff\u6362\u51fd\u6570\n$a1=str_replace('1','0',$a);\necho $a1;\n\/\/\u904d\u5386\u5b57\u7b26\u4e32\nfor($i=0;$i<=strlen($a);$i++){\necho $a[$i].'<\/br>';\n}\nfunction mb_str_split( $string ) {\n\/\/ \/u \u8868\u793a\u628a\u5b57\u7b26\u4e32\u5f53\u4f5c utf-8 \u5904\u7406\uff0c\u5e76\u628a\u5b57\u7b26\u4e32\u5f00\u59cb\u548c\u7ed3\u675f\u4e4b\u524d\u6240\u6709\u7684\u5b57\u7b26\n\u4e32\u5206\u5272\u6210\u6570\u7ec4\nreturn preg_split('\/(?<!^)(?!$)\/u', $string );\n}\nfor($i=0;$i<strlen($str);$i++) {\n$k = $str[$i]; \/\/\u8f93\u51fa\u4e71\u7801\n}\nforeach (mb_str_split($str) as $c)\n{\necho $c; \/\/\u6b63\u5e38\u8f93\u51fa\uff1a\u4e2d \u6587 \u6d4b \u8bd5\n}<\/code><\/pre>\n\u8fd0\u7b97\u7b26<\/h1>\n
\n\n
\n \n\u7c7b\u578b<\/th>\n \u8fd0\u7b97\u7b26<\/th>\n \u63cf\u8ff0<\/th>\n \u793a\u4f8b<\/th>\n<\/tr>\n<\/thead>\n \n \u7b97\u672f\u8fd0\u7b97\u7b26<\/td>\n +<\/td>\n \u52a0\u6cd5\u3002\u7528\u4e8e\u6570\u503c\u76f8\u52a0\u6216\u5b57\u7b26\u4e32\u8fde\u63a5\u3002<\/td>\n 5 + 3<\/code> \u7ed3\u679c\u4e3a 8;\"Hello\" . \" World\"<\/code> \u7ed3\u679c\u4e3a "Hello World"<\/td>\n<\/tr>\n\n <\/td>\n –<\/td>\n \u51cf\u6cd5\u3002\u7528\u4e8e\u6570\u503c\u51cf\u6cd5\u3002<\/td>\n 10 - 4<\/code> \u7ed3\u679c\u4e3a 6<\/td>\n<\/tr>\n\n <\/td>\n *<\/td>\n \u4e58\u6cd5\u3002\u7528\u4e8e\u6570\u503c\u76f8\u4e58\u3002<\/td>\n 7 * 6<\/code> \u7ed3\u679c\u4e3a 42<\/td>\n<\/tr>\n\n <\/td>\n \/<\/td>\n \u9664\u6cd5\u3002\u8fd4\u56de\u6d6e\u70b9\u6570\u7ed3\u679c\u3002<\/td>\n 10 \/ 2<\/code> \u7ed3\u679c\u4e3a 5.0<\/td>\n<\/tr>\n\n <\/td>\n %<\/td>\n \u53d6\u6a21\uff08\u53d6\u4f59\uff09\u3002<\/td>\n 10 % 3<\/code> \u7ed3\u679c\u4e3a 1<\/td>\n<\/tr>\n\n <\/td>\n **<\/td>\n \u5e42\u3002\u5c06\u5de6\u4fa7\u7684\u64cd\u4f5c\u6570\u63d0\u5347\u5230\u53f3\u4fa7\u64cd\u4f5c\u6570\u6307\u5b9a\u7684\u5e42\u3002<\/td>\n 2 ** 3<\/code> \u7ed3\u679c\u4e3a 8<\/td>\n<\/tr>\n\n \u6bd4\u8f83\u8fd0\u7b97\u7b26<\/td>\n ==<\/td>\n \u76f8\u7b49\u3002\u68c0\u67e5\u4e24\u4e2a\u503c\u662f\u5426\u76f8\u7b49\u3002<\/td>\n 5 == 5<\/code> \u7ed3\u679c\u4e3a true<\/td>\n<\/tr>\n\n <\/td>\n ===<\/td>\n \u5168\u7b49\u3002\u68c0\u67e5\u4e24\u4e2a\u503c\u662f\u5426\u76f8\u7b49\u4e14\u7c7b\u578b\u76f8\u540c\u3002<\/td>\n 5 === \"5\"<\/code> \u7ed3\u679c\u4e3a false<\/td>\n<\/tr>\n\n <\/td>\n != \u6216 <><\/td>\n \u4e0d\u7b49\u4e8e\u3002\u68c0\u67e5\u4e24\u4e2a\u503c\u662f\u5426\u4e0d\u76f8\u7b49\u3002<\/td>\n 5 != 4<\/code> \u7ed3\u679c\u4e3a true<\/td>\n<\/tr>\n\n <\/td>\n !==<\/td>\n \u4e0d\u5168\u7b49\u3002\u68c0\u67e5\u4e24\u4e2a\u503c\u662f\u5426\u4e0d\u76f8\u7b49\u6216\u7c7b\u578b\u4e0d\u540c\u3002<\/td>\n 5 !== \"5\"<\/code> \u7ed3\u679c\u4e3a true<\/td>\n<\/tr>\n\n <\/td>\n <<\/td>\n \u5c0f\u4e8e\u3002<\/td>\n 3 < 5<\/code> \u7ed3\u679c\u4e3a true<\/td>\n<\/tr>\n\n <\/td>\n ><\/td>\n \u5927\u4e8e\u3002<\/td>\n 7 > 5<\/code> \u7ed3\u679c\u4e3a true<\/td>\n<\/tr>\n\n <\/td>\n <=<\/td>\n \u5c0f\u4e8e\u7b49\u4e8e\u3002<\/td>\n 5 <= 5<\/code> \u7ed3\u679c\u4e3a true<\/td>\n<\/tr>\n\n <\/td>\n >=<\/td>\n \u5927\u4e8e\u7b49\u4e8e\u3002<\/td>\n 5 >= 5<\/code> \u7ed3\u679c\u4e3a true<\/td>\n<\/tr>\n\n \u903b\u8f91\u8fd0\u7b97\u7b26<\/td>\n &&<\/td>\n \u4e0e\u3002\u5f53\u4e24\u8fb9\u90fd\u4e3a\u771f\u65f6\u8fd4\u56detrue\u3002<\/td>\n true && false<\/code> \u7ed3\u679c\u4e3a false<\/td>\n<\/tr>\n\n <\/td>\n <\/td>\n <\/td>\n <\/td>\n<\/tr>\n \n <\/td>\n !<\/td>\n \u975e\u3002\u53cd\u8f6c\u5e03\u5c14\u503c\u3002<\/td>\n !true<\/code> \u7ed3\u679c\u4e3a false<\/td>\n<\/tr>\n\n \u5b57\u7b26\u4e32\u8fd0\u7b97\u7b26<\/td>\n .<\/td>\n \u4e32\u8054\u3002\u5c06\u4e24\u4e2a\u5b57\u7b26\u4e32\u5408\u5e76\u6210\u4e00\u4e2a\u65b0\u5b57\u7b26\u4e32\u3002<\/td>\n \"Hi\" . \" there\"<\/code> \u7ed3\u679c\u4e3a "Hi there"<\/td>\n<\/tr>\n\n \u6570\u7ec4\u8fd0\u7b97\u7b26<\/td>\n +<\/td>\n \u8054\u5408\u3002\u5408\u5e76\u4e24\u4e2a\u6570\u7ec4\uff0c\u4f46\u4e0d\u4fdd\u7559\u91cd\u590d\u9879\u3002<\/td>\n $a = [1, 2]; $b = [2, 3]; $a + $b<\/code> \u7ed3\u679c\u4e3a[1, 2]<\/code><\/td>\n<\/tr>\n\n <\/td>\n ==<\/td>\n \u5224\u65ad\u4e24\u4e2a\u6570\u7ec4\u662f\u5426\u62e5\u6709\u76f8\u540c\u7684\u952e\u503c\u5bf9\u3002<\/td>\n array(1, 2) == array(1, 2)<\/code> \u7ed3\u679c\u4e3a true<\/td>\n<\/tr>\n\n <\/td>\n ===<\/td>\n \u5224\u65ad\u4e24\u4e2a\u6570\u7ec4\u662f\u5426\u5b8c\u5168\u76f8\u540c\uff08\u5305\u62ec\u952e\u540d\u3001\u952e\u503c\u53ca\u987a\u5e8f\uff09\u3002<\/td>\n array(1, 2) === array(1, 2)<\/code> \u7ed3\u679c\u4e3a true<\/td>\n<\/tr>\n\n \u6761\u4ef6\u8fd0\u7b97\u7b26<\/td>\n ? :<\/td>\n \u4e09\u5143\u6761\u4ef6\u8fd0\u7b97\u7b26\u3002\u6839\u636e\u6761\u4ef6\u9009\u62e9\u6267\u884c\u7684\u7ed3\u679c\u3002<\/td>\n (5 > 3) ? \"Yes\" : \"No\"<\/code> \u7ed3\u679c\u4e3a "Yes"<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n\u63a7\u5236\u8bed\u53e5<\/h1>\n
\u63a7\u5236\u8bed\u6cd5\u7684\u8bed\u53e5\u7ed3\u6784\u548c\u5176\u4ed6\u5927\u591a\u6570\u8bed\u8a00\u7ed3\u6784\u76f8\u540c\uff0c\u6709\u4ee5\u4e0b\u4e24\u7c7b\uff1a<\/p>\n
\u6761\u4ef6\u63a7\u5236\u8bed\u53e5<\/h2>\n
if \u8bed\u53e5 – \u5728\u6761\u4ef6\u6210\u7acb\u65f6\u6267\u884c\u4ee3\u7801<\/p>\n
if…else \u8bed\u53e5 – \u5728\u6761\u4ef6\u6210\u7acb\u65f6\u6267\u884c\u4e00\u5757\u4ee3\u7801\uff0c\u6761\u4ef6\u4e0d\u6210\u7acb\u65f6\u6267\u884c\u53e6\u4e00\u5757\u4ee3\u7801<\/p>\n
if…elseif….else \u8bed\u53e5 – \u5728\u82e5\u5e72\u6761\u4ef6\u4e4b\u4e00\u6210\u7acb\u65f6\u6267\u884c\u4e00\u4e2a\u4ee3\u7801\u5757<\/p>\n
switch \u8bed\u53e5 – \u5728\u82e5\u5e72\u6761\u4ef6\u4e4b\u4e00\u6210\u7acb\u65f6\u6267\u884c\u4e00\u4e2a\u4ee3\u7801\u5757<\/p>\n
\u5faa\u73af\u63a7\u5236\u8bed\u53e5<\/h2>\n
while – \u53ea\u8981\u6307\u5b9a\u7684\u6761\u4ef6\u6210\u7acb\uff0c\u5219\u5faa\u73af\u6267\u884c\u4ee3\u7801\u5757<\/p>\n
do…while – \u9996\u5148\u6267\u884c\u4e00\u6b21\u4ee3\u7801\u5757\uff0c\u7136\u540e\u5728\u6307\u5b9a\u7684\u6761\u4ef6\u6210\u7acb\u65f6\u91cd\u590d\u8fd9\u4e2a\u5faa\u73af<\/p>\n
for – \u5faa\u73af\u6267\u884c\u4ee3\u7801\u5757\u6307\u5b9a\u7684\u6b21\u6570<\/p>\n
foreach – \u6839\u636e\u6570\u7ec4\u4e2d\u6bcf\u4e2a\u5143\u7d20\u6765\u5faa\u73af\u4ee3\u7801\u5757<\/p>\n
break \u8bed\u53e5\u7528\u4e8e\u7ec8\u6b62\u672c\u6b21\u5faa\u73af<\/p>\n
continue \u8bed\u53e5\u7684\u4f5c\u7528\u662f\u8df3\u51fa\u672c\u6b21\u5faa\u73af\uff0c\u63a5\u7740\u6267\u884c\u4e0b\u4e00\u6b21\u5faa\u73af<\/p>\n
php\u6570\u7ec4<\/h1>\n
\u6570\u7ec4\u662f\u4e00\u4e2a\u80fd\u5728\u5355\u4e2a\u53d8\u91cf\u4e2d\u5b58\u50a8\u591a\u4e2a\u503c\u7684\u7279\u6b8a\u53d8\u91cf\u3002<\/p>\n
\u5728 PHP \u4e2d\uff0carray() \u51fd\u6570\u7528\u4e8e\u521b\u5efa\u6570\u7ec4\uff1a<\/p>\n
array();<\/p>\n
\u5728 PHP \u4e2d\uff0c\u6709\u4e09\u79cd\u7c7b\u578b\u7684\u6570\u7ec4\uff1a<\/p>\n
\u6570\u503c\u6570\u7ec4 – \u5e26\u6709\u6570\u5b57 ID \u952e\u7684\u6570\u7ec4<\/p>\n
\u5173\u8054\u6570\u7ec4 – \u5e26\u6709\u6307\u5b9a\u7684\u952e\u7684\u6570\u7ec4\uff0c\u6bcf\u4e2a\u952e\u5173\u8054\u4e00\u4e2a\u503c<\/p>\n
\u591a\u7ef4\u6570\u7ec4 – \u5305\u542b\u4e00\u4e2a\u6216\u591a\u4e2a\u6570\u7ec4\u7684\u6570\u7ec4<\/p>\n
\u6570\u7ec4\u7684\u58f0\u660e<\/p>\n
$array1 = array();\n<?php\n$cars=array(\"Volvo\",\"BMW\",\"Toyota\");\/\/\u7b80\u5355\u7684\u6570\u7ec4\necho count($cars);\/\/count()\u8fd4\u56de\u6570\u7ec4\u7684\u957f\u5ea6\n$age=array(\"Peter\"=>\"35\",\"Ben\"=>\"37\",\"Joe\"=>\"43\");\/\/\u5173\u8054\u6570\u7ec4\n\/\/\u5176\u4e2d\u5305\u542b\u591a\u4e2a\u952e\u503c\u5bf9\necho \"Peter is \" . $age['Peter'] . \" years old.\";\nforeach($age as $x=>$x_value)\/\/\u5173\u8054\u6570\u7ec4\u7684\u904d\u5386\u65b9\u6cd5\n{\necho \"Key=\" . $x . \", Value=\" . $x_value;\necho \"<br>\";\n}\n?><\/code><\/pre>\n\u5728 PHP \u4e2d\u5b9a\u4e49\u4e86\u591a\u4e2a\u6570\u7ec4\u6392\u5e8f\u7684\u5185\u7f6e\u51fd\u6570\uff1a<\/p>\n
sort() – \u5bf9\u6570\u7ec4\u8fdb\u884c\u5347\u5e8f\u6392\u5217<\/p>\n
rsort() – \u5bf9\u6570\u7ec4\u8fdb\u884c\u964d\u5e8f\u6392\u5217<\/p>\n
asort() – \u6839\u636e\u5173\u8054\u6570\u7ec4\u7684\u503c\uff0c\u5bf9\u6570\u7ec4\u8fdb\u884c\u5347\u5e8f\u6392\u5217<\/p>\n
ksort() – \u6839\u636e\u5173\u8054\u6570\u7ec4\u7684\u952e\uff0c\u5bf9\u6570\u7ec4\u8fdb\u884c\u5347\u5e8f\u6392\u5217<\/p>\n
arsort() – \u6839\u636e\u5173\u8054\u6570\u7ec4\u7684\u503c\uff0c\u5bf9\u6570\u7ec4\u8fdb\u884c\u964d\u5e8f\u6392\u5217<\/p>\n
krsort() – \u6839\u636e\u5173\u8054\u6570\u7ec4\u7684\u952e\uff0c\u5bf9\u6570\u7ec4\u8fdb\u884c\u964d\u5e8f\u6392\u5217<\/p>\n
\u6570\u7ec4\u7684\u64cd\u4f5c<\/h2>\n
\u6570\u7ec4\u7684\u5408\u62fc<\/h3>\n
$array1 =array(‘a’,’b’,’c’);<\/p>\n
$array2 = array(‘a1’=>’php’,’a2’=>’python’,’a3’=>’java’);<\/p>\n
$array3 = array_merge($array1,$array2);<\/p>\n
\u586b\u52a0\u6570\u7ec4\u5143\u7d20<\/h3>\n
array_push() \u51fd\u6570\u5411\u7b2c\u4e00\u4e2a\u53c2\u6570\u7684\u6570\u7ec4\u5c3e\u90e8\u6dfb\u52a0\u4e00\u4e2a\u6216\u591a\u4e2a\u5143\u7d20\uff08\u5165\u6808\uff09\uff0c\u7136\u540e<\/p>\n
\u8fd4\u56de\u65b0\u6570\u7ec4\u7684\u957f\u5ea6\u3002<\/p>\n
array_push($array1,’d’,’e’);<\/p>\n
print_r($array1);<\/p>\n
\u4e0b\u8868\u4e3a\u7a7a \u81ea\u52a8\u6dfb\u52a0\u53c2\u6570<\/p>\n
$array1[]=’d’;<\/p>\n
\u6709\u952e\u503c\u7684<\/p>\n
$array1[‘a4′]=’javasciprt’;<\/p>\n
\u6dfb\u52a0\u5230\u6307\u5b9a\u4f4d\u7f6e<\/h3>\n
<?php\n$array1 = array('a', 'b', 'c', 'd', 'e');\n$array2 = array('x');\narray_splice($array1, 3, 0, $array2); \/\/ \u63d2\u5165\u5230\u4f4d\u7f6e 3 \u4e14\u5220\u9664 0 \u4e2a\nprint_r($array1);\n?><\/code><\/pre>\narray_splice(\u6570\u7ec4\uff0c\u4f4d\u7f6e\uff0c\u5220\u9664\u51e0\u4e2a\uff0c\u589e\u52a0\u5143\u7d20\uff09<\/p>\n
\u5220\u9664\u67d0\u4e00\u4e2a\u5143\u7d20<\/p>\n
<?php\n$array1 = array('a', 'b', 'c', 'd', 'e');\n$array2 = array('x');\narray_splice($array1, 3, 1);\nprint_r($array1);\n?><\/code><\/pre>\nunset \u9500\u6bc1\u6307\u5b9a\u7684\u5143\u7d20<\/p>\n
$array1 = array(‘a’, ‘b’, ‘c’, ‘d’, ‘e’);<\/p>\n
unset($array1[0]);<\/p>\n
print_r($array1);<\/p>\n
array_pop():\u5c06\u6570\u7ec4\u6700\u540e\u4e00\u4e2a\u5355\u5143\u5f39\u51fa\uff08\u51fa\u6808\uff09<\/p>\n
\u4fee\u6539\u6570\u7ec4\u4e2d\u67d0\u4e2a\u5143\u7d20<\/p>\n
$array1 = array(‘a’, ‘b’, ‘c’, ‘d’, ‘e’);<\/p>\n
$array1[0]=’aa’;<\/p>\n
print_r($array1);<\/p>\n
\u5e38\u7528\u7684\u6570\u7ec4\u51fd\u6570<\/h3>\n
is_array \u5224\u65ad\u662f\u5426\u4e3a\u6570\u7ec4<\/p>\n
count \u6570\u7ec4\u7684\u5143\u7d20\u6570\u76ee<\/p>\n
array_search \u2014 \u5728\u6570\u7ec4\u4e2d\u641c\u7d22\u7ed9\u5b9a\u7684\u503c\uff0c\u5982\u679c\u6210\u529f\u5219\u8fd4\u56de\u76f8\u5e94\u7684\u952e\u540d<\/p>\n
array_key_exists()\u5728\u7ed9\u5b9a\u7684 key \u5b58\u5728\u4e8e\u6570\u7ec4\u4e2d\u65f6\u8fd4\u56de TRUE<\/p>\n
array_unshift() \u5c06\u4f20\u5165\u7684\u5355\u5143\u63d2\u5165\u5230 array \u6570\u7ec4\u7684\u5f00\u5934\u3002\u6ce8\u610f\u5355\u5143\u662f\u4f5c\u4e3a\u6574\u4f53\u88ab<\/p>\n
\u63d2\u5165\u7684\uff0c\u56e0\u6b64\u4f20\u5165\u5355\u5143\u5c06\u4fdd\u6301\u540c\u6837\u7684\u987a\u5e8f\u3002\u6240\u6709\u7684\u6570\u503c\u952e\u540d\u5c06\u4fee\u6539\u4e3a\u4ece\u96f6\u5f00\u59cb\u91cd<\/p>\n
\u65b0\u8ba1\u6570\uff0c\u6240\u6709\u7684\u6587\u5b57\u952e\u540d\u4fdd\u6301\u4e0d\u53d8<\/p>\n
array_shift() \u5c06 array \u7684\u7b2c\u4e00\u4e2a\u5355\u5143\u79fb\u51fa\u5e76\u4f5c\u4e3a\u7ed3\u679c\u8fd4\u56de\uff0c\u5c06 array \u7684\u957f\u5ea6\u51cf\u4e00<\/p>\n
\u5e76\u5c06\u6240\u6709\u5176\u5b83\u5355\u5143\u5411\u524d\u79fb\u52a8\u4e00\u4f4d\u3002\u6240\u6709\u7684\u6570\u5b57\u952e\u540d\u5c06\u6539\u4e3a\u4ece\u96f6\u5f00\u59cb\u8ba1\u6570\uff0c\u6587\u5b57\u952e<\/p>\n
\u540d\u5c06\u4e0d\u53d8\u3002<\/p>\n
array_unique() \u63a5\u53d7 array \u4f5c\u4e3a\u8f93\u5165\u5e76\u8fd4\u56de\u6ca1\u6709\u91cd\u590d\u503c\u7684\u65b0\u6570\u7ec4\u3002\u6ce8\u610f\u952e\u540d\u4fdd\u7559<\/p>\n
\u4e0d\u53d8\u3002 array_unique() \u5148\u5c06\u503c\u4f5c\u4e3a\u5b57\u7b26\u4e32\u6392\u5e8f\uff0c\u7136\u540e\u5bf9\u6bcf\u4e2a\u503c\u53ea\u4fdd\u7559\u7b2c\u4e00\u4e2a\u9047<\/p>\n
\u5230\u7684\u952e\u540d\uff0c\u63a5\u7740\u5ffd\u7565\u6240\u6709\u540e\u9762\u7684\u952e\u540d\u3002\u8fd9\u5e76\u4e0d\u610f\u5473\u7740\u5728\u672a\u6392\u5e8f\u7684 array \u4e2d\u540c\u4e00\u4e2a<\/p>\n
\u503c\u7684\u7b2c\u4e00\u4e2a\u51fa\u73b0\u7684\u952e\u540d\u4f1a\u88ab\u4fdd\u7559\u3002<\/p>\n
in_array \u2014 \u68c0\u67e5\u6570\u7ec4\u4e2d\u662f\u5426\u5b58\u5728\u67d0\u4e2a\u503c \u5982\u679c\u627e\u5230\u6307\u5b9a\u7684\u503c\u5219\u8fd4\u56de TRUE\uff0c\u5426<\/p>\n
\u5219\u8fd4\u56de FALSE \u3002in_array()\u662f\u533a\u5206\u5927\u5c0f\u5199\u7684\u3002<\/p>\n
PHP\u51fd\u6570<\/h1>\n
PHP \u7684\u771f\u6b63\u529b\u91cf\u6765\u81ea\u5b83\u7684\u51fd\u6570\uff1a\u5b83\u62e5\u6709\u8d85\u8fc7 1000 \u4e2a\u5185\u5efa\u7684\u51fd\u6570\u3002<\/p>\n
PHP \u7528\u6237\u5b9a\u4e49\u51fd\u6570<\/p>\n
\u9664\u4e86\u5185\u5efa\u7684 PHP \u51fd\u6570\uff0c\u6211\u4eec\u53ef\u4ee5\u521b\u5efa\u6211\u4eec\u81ea\u5df1\u7684\u51fd\u6570\u3002<\/p>\n
\u51fd\u6570\u662f\u53ef\u4ee5\u5728\u7a0b\u5e8f\u4e2d\u91cd\u590d\u4f7f\u7528\u7684\u8bed\u53e5\u5757\u3002<\/p>\n
\u9875\u9762\u52a0\u8f7d\u65f6\u51fd\u6570\u4e0d\u4f1a\u7acb\u5373\u6267\u884c\u3002<\/p>\n
\u51fd\u6570\u53ea\u6709\u5728\u88ab\u8c03\u7528\u65f6\u624d\u4f1a\u6267\u884c\u3002<\/p>\n
\u5728 PHP \u521b\u5efa\u7528\u6237\u5b9a\u4e49\u51fd\u6570<\/p>\n
\u7528\u6237\u5b9a\u4e49\u7684\u51fd\u6570\u58f0\u660e\u4ee5\u5355\u8bcd "function" \u5f00\u5934\uff1a<\/p>\n
\u8bed\u6cd5<\/p>\n
function functionName() {<\/p>\n
\u88ab\u6267\u884c\u7684\u4ee3\u7801;<\/p>\n
}<\/p>\n
\u6ce8\u91ca\uff1a\u51fd\u6570\u540d\u80fd\u591f\u4ee5\u5b57\u6bcd\u6216\u4e0b\u5212\u7ebf\u5f00\u5934\uff08\u800c\u975e\u6570\u5b57\uff09\u3002<\/p>\n
\u6ce8\u91ca\uff1a\u51fd\u6570\u540d\u5bf9\u5927\u5c0f\u5199\u4e0d\u654f\u611f\u3002<\/p>\n
\u63d0\u793a\uff1a\u51fd\u6570\u540d\u5e94\u8be5\u80fd\u591f\u53cd\u6620\u51fd\u6570\u6240\u6267\u884c\u7684\u4efb\u52a1\u3002<\/p>\n
\u5728\u4e0b\u9762\u7684\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u521b\u5efa\u540d\u4e3a "writeMsg()" \u7684\u51fd\u6570\u3002\u6253\u5f00\u7684\u82b1\u62ec\u53f7\uff08{\uff09\u6307\u793a<\/p>\n
\u51fd\u6570\u4ee3\u7801\u7684\u5f00\u59cb\uff0c\u800c\u5173\u95ed\u7684\u82b1\u62ec\u53f7\uff08}\uff09\u6307\u793a\u51fd\u6570\u7684\u7ed3\u675f\u3002\u6b64\u51fd\u6570\u8f93\u51fa "Hello<\/p>\n
world!"\u3002\u5982\u9700\u8c03\u7528\u8be5\u51fd\u6570\uff0c\u53ea\u8981\u4f7f\u7528\u51fd\u6570\u540d\u5373\u53ef\uff1a<\/p>\n
\u5b9e\u4f8b<\/p>\n
<?php\nfunction sayHi() {\necho \"Hello world!\";\n}\nsayhi(); \/\/ \u8c03\u7528\u51fd\u6570\n?><\/code><\/pre>\nPHP \u51fd\u6570\u53c2\u6570<\/h2>\n
\u53ef\u4ee5\u901a\u8fc7\u53c2\u6570\u5411\u51fd\u6570\u4f20\u9012\u4fe1\u606f\u3002\u53c2\u6570\u7c7b\u4f3c\u53d8\u91cf\u3002<\/p>\n
\u53c2\u6570\u88ab\u5b9a\u4e49\u5728\u51fd\u6570\u540d\u4e4b\u540e\uff0c\u62ec\u53f7\u5185\u90e8\u3002\u60a8\u53ef\u4ee5\u6dfb\u52a0\u4efb\u610f\u591a\u53c2\u6570\uff0c\u53ea\u8981\u7528\u9017\u53f7\u9694\u5f00<\/p>\n
\u5373\u53ef\u3002<\/p>\n
\u4e0b\u9762\u7684\u4f8b\u5b50\u4e2d\u7684\u51fd\u6570\u6709\u4e00\u4e2a\u53c2\u6570\uff08$fname\uff09\u3002\u5f53\u8c03\u7528 familyName() \u51fd\u6570\u65f6\uff0c\u6211<\/p>\n
\u4eec\u540c\u65f6\u8981\u4f20\u9012\u4e00\u4e2a\u540d\u5b57\uff08\u4f8b\u5982 Bill\uff09\uff0c\u8fd9\u6837\u4f1a\u8f93\u51fa\u4e0d\u540c\u7684\u540d\u5b57\uff0c\u4f46\u662f\u59d3\u6c0f\u76f8\u540c\uff1a<\/p>\n
<?php\nfunction familyName($fname) {\necho \"$fname Zhang.<br>\";\n}\nfamilyName(\"Li\");\nfamilyName(\"Hong\");\nfamilyName(\"Tao\");\nfamilyName(\"Xiao Mei\");\nfamilyName(\"Jian\");\n?><\/code><\/pre>\nPHP \u9ed8\u8ba4\u53c2\u6570\u503c<\/p>\n
\u4e0b\u9762\u7684\u4f8b\u5b50\u5c55\u793a\u4e86\u5982\u4f55\u4f7f\u7528\u9ed8\u8ba4\u53c2\u6570\u3002\u5982\u679c\u6211\u4eec\u8c03\u7528\u6ca1\u6709\u53c2\u6570\u7684 setHeight() \u51fd<\/p>\n
\u6570\uff0c\u5b83\u7684\u53c2\u6570\u4f1a\u53d6\u9ed8\u8ba4\u503c\uff1a<\/p>\n
\u5b9e\u4f8b<\/p>\n
<?php\nfunction setHeight($minheight=50) {\necho \"The height is : $minheight <br>\";\n}\nsetHeight(350);\nsetHeight(); \/\/ \u5c06\u4f7f\u7528\u9ed8\u8ba4\u503c 50\nsetHeight(135);\nsetHeight(80);\n?><\/code><\/pre>\nPHP \u51fd\u6570 – \u8fd4\u56de\u503c<\/p>\n
\u5982\u9700\u4f7f\u51fd\u6570\u8fd4\u56de\u503c\uff0c\u8bf7\u4f7f\u7528 return \u8bed\u53e5\uff1a<\/p>\n
\u5b9e\u4f8b<\/p>\n
<?php\nfunction sum($x,$y) {\n$z=$x+$y;\nreturn $z;\n}\necho \"5 + 10 = \" . sum(5,10) . \"<br>\";\necho \"7 + 13 = \" . sum(7,13) . \"<br>\";\necho \"2 + 4 = \" . sum(2,4);\n?><\/code><\/pre>\n\u533f\u540d\u51fd\u6570<\/h2>\n
\u533f\u540d\u51fd\u6570\u5c31\u662f\u6ca1\u6709\u540d\u5b57\u7684\u51fd\u6570\u3002<\/p>\n
\u5c06\u4e00\u4e2a\u533f\u540d\u51fd\u6570"\u8d4b\u503c"\u7ed9\u4e00\u4e2a\u53d8\u91cf\u2014\u2014\u6b64\u65f6\u8be5\u53d8\u91cf\u5c31\u4ee3\u8868\u8be5\u533f\u540d\u51fd\u6570\u4e86\uff01<\/p>\n
$callfunction=function($name){<\/p>\n
return $name;<\/p>\n
};<\/p>\n
echo $callfunction(‘moonsec’);<\/p>\n
\u56de\u8c03\u51fd\u6570<\/h2>\n
\u56de\u8c03\u51fd\u6570\u662f\u6307\u8c03\u7528\u51fd\u6570\u7684\u65f6\u5019\u5c06\u53e6\u4e00\u4e2a\u51fd\u6570\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\u5230\u8c03\u7528\u7684\u51fd\u6570\u4e2d\uff0c\u800c\u4e0d<\/p>\n
\u662f\u4f20\u9012\u4e00\u4e2a\u666e\u901a\u7684\u53d8\u91cf\u4f5c\u4e3a\u53c2\u6570<\/p>\n
\u4f7f\u7528\u56de\u8c03\u51fd\u6570\u662f\u4e3a\u4e86\u53ef\u4ee5\u5c06\u4e00\u6bb5\u81ea\u5df1\u5b9a\u4e49\u7684\u529f\u80fd\u4f20\u5230\u51fd\u6570\u5185\u90e8\u4f7f\u7528<\/p>\n
<?php\nfunction Speak($a,$b){\necho \"He can speak \".$a;\necho \"<br>\";\necho \"She can speak \".$b;\n}\nfunction Speak_Test(){\nreturn call_user_func_array('Speak',array('Chinese','English'));\n}\nSpeak_Test()\n?><\/code><\/pre>\nPHP\u53d8\u91cf\u4f5c\u7528\u57df<\/h1>\n
\u5728 PHP \u4e2d\uff0c\u53ef\u4ee5\u5728\u811a\u672c\u7684\u4efb\u610f\u4f4d\u7f6e\u5bf9\u53d8\u91cf\u8fdb\u884c\u58f0\u660e\u3002<\/p>\n
\u53d8\u91cf\u7684\u4f5c\u7528\u57df\u6307\u7684\u662f\u53d8\u91cf\u80fd\u591f\u88ab\u5f15\u7528\/\u4f7f\u7528\u7684\u90a3\u90e8\u5206\u811a\u672c\u3002<\/p>\n
PHP \u6709\u4e09\u79cd\u4e0d\u540c\u7684\u53d8\u91cf\u4f5c\u7528\u57df\uff1a<\/p>\n
local\uff08\u5c40\u90e8\uff09<\/p>\n
global\uff08\u5168\u5c40\uff09<\/p>\n
static\uff08\u9759\u6001\uff09<\/p>\n
Local \u548c Global \u4f5c\u7528\u57df<\/p>\n
\u51fd\u6570\u4e4b\u5916\u58f0\u660e\u7684\u53d8\u91cf\u62e5\u6709 Global \u4f5c\u7528\u57df\uff0c\u53ea\u80fd\u5728\u51fd\u6570\u4ee5\u5916\u8fdb\u884c\u8bbf\u95ee\u3002<\/p>\n
\u51fd\u6570\u5185\u90e8\u58f0\u660e\u7684\u53d8\u91cf\u62e5\u6709 LOCAL \u4f5c\u7528\u57df\uff0c\u53ea\u80fd\u5728\u51fd\u6570\u5185\u90e8\u8fdb\u884c\u8bbf\u95ee\u3002<\/p>\n
\u4e0b\u9762\u7684\u4f8b\u5b50\u6d4b\u8bd5\u4e86\u5e26\u6709\u5c40\u90e8\u548c\u5168\u5c40\u4f5c\u7528\u57df\u7684\u53d8\u91cf\uff1a<\/p>\n
<?php\n$x=5; \/\/ \u5168\u5c40\u4f5c\u7528\u57df\nfunction myTest() {\n$y=10; \/\/ \u5c40\u90e8\u4f5c\u7528\u57df\necho \"<p>\u6d4b\u8bd5\u51fd\u6570\u5185\u90e8\u7684\u53d8\u91cf\uff1a<\/p>\";\necho \"\u53d8\u91cf x \u662f\uff1a$x\";\necho \"<br>\";\necho \"\u53d8\u91cf y \u662f\uff1a$y\";\n}\nmyTest();\necho \"<p>\u6d4b\u8bd5\u51fd\u6570\u4e4b\u5916\u7684\u53d8\u91cf\uff1a<\/p>\";\necho \"\u53d8\u91cf x \u662f\uff1a$x\";\necho \"<br>\";\necho \"\u53d8\u91cf y \u662f\uff1a$y\";\n?><\/code><\/pre>\n\u5728\u4e0a\u4f8b\u4e2d\uff0c\u6709\u4e24\u4e2a\u53d8\u91cf $x \u548c $y\uff0c\u4ee5\u53ca\u4e00\u4e2a\u51fd\u6570 myTest()\u3002$x \u662f\u5168\u5c40\u53d8\u91cf\uff0c<\/p>\n
\u56e0\u4e3a\u5b83\u662f\u5728\u51fd\u6570\u4e4b\u5916\u58f0\u660e\u7684\uff0c\u800c $y \u662f\u5c40\u90e8\u53d8\u91cf\uff0c\u56e0\u4e3a\u5b83\u662f\u5728\u51fd\u6570\u5185\u58f0\u660e\u7684\u3002<\/p>\n
\u5982\u679c\u6211\u4eec\u5728 myTest() \u51fd\u6570\u5185\u90e8\u8f93\u51fa\u4e24\u4e2a\u53d8\u91cf\u7684\u503c\uff0c$y \u4f1a\u8f93\u51fa\u5728\u672c\u5730\u58f0\u660e\u7684\u503c\uff0c<\/p>\n
\u4f46\u662f\u65e0\u6cd5 $x \u7684\u503c\uff0c\u56e0\u4e3a\u5b83\u5728\u51fd\u6570\u4e4b\u5916\u521b\u5efa\u3002<\/p>\n
\u7136\u540e\uff0c\u5982\u679c\u5728 myTest() \u51fd\u6570\u4e4b\u5916\u8f93\u51fa\u4e24\u4e2a\u53d8\u91cf\u7684\u503c\uff0c\u90a3\u4e48\u4f1a\u8f93\u51fa $x \u7684\u503c\uff0c\u4f46<\/p>\n
\u662f\u4e0d\u4f1a\u8f93\u51fa $y \u7684\u503c\uff0c\u56e0\u4e3a\u5b83\u662f\u5c40\u90e8\u53d8\u91cf\uff0c\u5e76\u4e14\u5728 myTest() \u5185\u90e8\u521b\u5efa\u3002<\/p>\n
\u6ce8\u91ca\uff1a\u60a8\u53ef\u4ee5\u5728\u4e0d\u540c\u7684\u51fd\u6570\u4e2d\u521b\u5efa\u540d\u79f0\u76f8\u540c\u7684\u5c40\u90e8\u53d8\u91cf\uff0c\u56e0\u4e3a\u5c40\u90e8\u53d8\u91cf\u53ea\u80fd\u88ab\u5728<\/p>\n
\u5176\u4e2d\u521b\u5efa\u5b83\u7684\u51fd\u6570\u8bc6\u522b\u3002<\/p>\n
PHP global \u5173\u952e\u8bcd<\/p>\n
global \u5173\u952e\u8bcd\u7528\u4e8e\u5728\u51fd\u6570\u5185\u8bbf\u95ee\u5168\u5c40\u53d8\u91cf\u3002<\/p>\n
\u8981\u505a\u5230\u8fd9\u4e00\u70b9\uff0c\u8bf7\u5728\uff08\u51fd\u6570\u5185\u90e8\uff09\u53d8\u91cf\u524d\u9762\u4f7f\u7528 global \u5173\u952e\u8bcd\uff1a<\/p>\n
\u5b9e\u4f8b<\/p>\n
<?php\n$x=5;\n$y=10;\nfunction myTest() {\nglobal $x,$y;\n$y=$x+$y;\n}\nmyTest();\necho $y; \/\/ \u8f93\u51fa 15\n?><\/code><\/pre>\nPHP \u540c\u65f6\u5728\u540d\u4e3a $GLOBALS[index] \u7684\u6570\u7ec4\u4e2d\u5b58\u50a8\u4e86\u6240\u6709\u7684\u5168\u5c40\u53d8\u91cf\u3002\u4e0b\u6807\u5b58<\/p>\n
\u6709\u53d8\u91cf\u540d\u3002\u8fd9\u4e2a\u6570\u7ec4\u5728\u51fd\u6570\u5185\u4e5f\u53ef\u4ee5\u8bbf\u95ee\uff0c\u5e76\u80fd\u591f\u7528\u4e8e\u76f4\u63a5\u66f4\u65b0\u5168\u5c40\u53d8\u91cf\u3002<\/p>\n
\u4e0a\u9762\u7684\u4f8b\u5b50\u53ef\u4ee5\u8fd9\u6837\u91cd\u5199\uff1a<\/p>\n
<?php\n$x=5;\n$y=10;\nfunction myTest() {\n$GLOBALS['y']=$GLOBALS['x']+$GLOBALS['y'];\n}\nmyTest();\necho $y; \/\/ \u8f93\u51fa 15\n?><\/code><\/pre>\nPHP static \u5173\u952e\u8bcd<\/h3>\n
\u901a\u5e38\uff0c\u5f53\u51fd\u6570\u5b8c\u6210\/\u6267\u884c\u540e\uff0c\u4f1a\u5220\u9664\u6240\u6709\u53d8\u91cf\u3002\u4e0d\u8fc7\uff0c\u6709\u65f6\u6211\u9700\u8981\u4e0d\u5220\u9664\u67d0\u4e2a\u5c40<\/p>\n
\u90e8\u53d8\u91cf\u3002\u5b9e\u73b0\u8fd9\u4e00\u70b9\u9700\u8981\u66f4\u8fdb\u4e00\u6b65\u7684\u5de5\u4f5c\u3002<\/p>\n
\u8981\u5b8c\u6210\u8fd9\u4e00\u70b9\uff0c\u8bf7\u5728\u60a8\u9996\u6b21\u58f0\u660e\u53d8\u91cf\u65f6\u4f7f\u7528 static \u5173\u952e\u8bcd\uff1a<\/p>\n
\u5b9e\u4f8b<\/p>\n
<?php\nfunction myTest() {\nstatic $x=0;\necho $x;\n$x++;\n}\nmyTest();\nmyTest();\nmyTest();\n?><\/code><\/pre>\n\u7136\u540e\uff0c\u6bcf\u5f53\u51fd\u6570\u88ab\u8c03\u7528\u65f6\uff0c\u8fd9\u4e2a\u53d8\u91cf\u6240\u5b58\u50a8\u7684\u4fe1\u606f\u90fd\u662f\u51fd\u6570\u6700\u540e\u4e00\u6b21\u88ab\u8c03\u7528\u65f6\u6240<\/p>\n
\u5305\u542b\u7684\u4fe1\u606f\u3002\/\/\/<\/p>\n
\u6ce8\u91ca\uff1a\u8be5\u53d8\u91cf\u4ecd\u7136\u662f\u51fd\u6570\u7684\u5c40\u90e8\u53d8\u91cf\u3002<\/p>\n
\u7c7b\u4e0e\u5bf9\u8c61<\/h1>\n
PHP \u9762\u5411\u5bf9\u8c61<\/p>\n
\u5728\u9762\u5411\u5bf9\u8c61\u7684\u7a0b\u5e8f\u8bbe\u8ba1\uff08\u82f1\u8bed\uff1aObject-oriented programming\uff0c\u7f29\u5199\uff1aOOP\uff09\u4e2d\uff0c<\/p>\n
\u5bf9\u8c61\u662f\u4e00\u4e2a\u7531\u4fe1\u606f\u53ca\u5bf9\u4fe1\u606f\u8fdb\u884c\u5904\u7406\u7684\u63cf\u8ff0\u6240\u7ec4\u6210\u7684\u6574\u4f53\uff0c\u662f\u5bf9\u73b0\u5b9e\u4e16\u754c\u7684\u62bd\u8c61\u3002<\/p>\n
\u5728\u73b0\u5b9e\u4e16\u754c\u91cc\u6211\u4eec\u6240\u9762\u5bf9\u7684\u4e8b\u60c5\u90fd\u662f\u5bf9\u8c61\uff0c\u5982\u8ba1\u7b97\u673a\u3001\u7535\u89c6\u673a\u3001\u81ea\u884c\u8f66\u7b49\u3002<\/p>\n
\u5bf9\u8c61\u7684\u4e3b\u8981\u4e09\u4e2a\u7279\u6027\uff1a<\/p>\n
\u5bf9\u8c61\u7684\u884c\u4e3a\uff1a\u53ef\u4ee5\u5bf9\u5bf9\u8c61\u65bd\u52a0\u90a3\u4e9b\u64cd\u4f5c\uff0c\u5f00\u706f\uff0c\u5173\u706f\u5c31\u662f\u884c\u4e3a\u3002<\/p>\n
\u5bf9\u8c61\u7684\u5f62\u6001\uff1a\u5f53\u65bd\u52a0\u90a3\u4e9b\u65b9\u6cd5\u662f\u5bf9\u8c61\u5982\u4f55\u54cd\u5e94\uff0c\u989c\u8272\uff0c\u5c3a\u5bf8\uff0c\u5916\u578b\u3002<\/p>\n
\u5bf9\u8c61\u7684\u8868\u793a\uff1a\u5bf9\u8c61\u7684\u8868\u793a\u5c31\u76f8\u5f53\u4e8e\u8eab\u4efd\u8bc1\uff0c\u5177\u4f53\u533a\u5206\u5728\u76f8\u540c\u7684\u884c\u4e3a\u4e0e\u72b6\u6001\u4e0b<\/p>\n
\u6709\u4ec0\u4e48\u4e0d\u540c\u3002<\/p>\n
\u6bd4\u5982 Animal(\u52a8\u7269) \u662f\u4e00\u4e2a\u62bd\u8c61\u7c7b\uff0c\u6211\u4eec\u53ef\u4ee5\u5177\u4f53\u5230\u4e00\u53ea\u72d7\u8ddf\u4e00\u53ea\u7f8a\uff0c\u800c\u72d7\u8ddf\u7f8a<\/p>\n
\u5c31\u662f\u5177\u4f53\u7684\u5bf9\u8c61\uff0c\u4ed6\u4eec\u6709\u989c\u8272\u5c5e\u6027\uff0c\u53ef\u4ee5\u5199\uff0c\u53ef\u4ee5\u8dd1\u7b49\u884c\u4e3a\u72b6\u6001\u3002<\/p>\n
\u9762\u5411\u5bf9\u8c61\u5185\u5bb9<\/h2>\n
\u7c7b <\/strong>\u2212 \u5b9a\u4e49\u4e86\u4e00\u4ef6\u4e8b\u7269\u7684\u62bd\u8c61\u7279\u70b9\u3002\u7c7b\u7684\u5b9a\u4e49\u5305\u542b\u4e86\u6570\u636e\u7684\u5f62\u5f0f\u4ee5\u53ca\u5bf9\u6570\u636e\u7684\u64cd\u4f5c\u3002<\/p>\n
\u5bf9\u8c61<\/strong> \u2212 \u662f\u7c7b\u7684\u5b9e\u4f8b\u3002<\/p>\n
\u6210\u5458\u53d8\u91cf<\/strong> \u2212 \u5b9a\u4e49\u5728\u7c7b\u5185\u90e8\u7684\u53d8\u91cf\u3002\u8be5\u53d8\u91cf\u7684\u503c\u5bf9\u5916\u662f\u4e0d\u53ef\u89c1\u7684\uff0c\u4f46\u662f\u53ef\u4ee5\u901a\u8fc7\u6210\u5458\u51fd\u6570\u8bbf\u95ee\uff0c\u5728\u7c7b\u88ab\u5b9e\u4f8b\u5316\u4e3a\u5bf9\u8c61\u540e\uff0c\u8be5\u53d8\u91cf\u5373\u53ef\u79f0\u4e3a\u5bf9\u8c61\u7684\u5c5e\u6027\u3002<\/p>\n
\u6210\u5458\u51fd\u6570<\/strong> \u2212 \u5b9a\u4e49\u5728\u7c7b\u7684\u5185\u90e8\uff0c\u53ef\u7528\u4e8e\u8bbf\u95ee\u5bf9\u8c61\u7684\u6570\u636e\u3002<\/p>\n
\u7ee7\u627f<\/strong> \u2212 \u7ee7\u627f\u6027\u662f\u5b50\u7c7b\u81ea\u52a8\u5171\u4eab\u7236\u7c7b\u6570\u636e\u7ed3\u6784\u548c\u65b9\u6cd5\u7684\u673a\u5236\uff0c\u8fd9\u662f\u7c7b\u4e4b\u95f4\u7684\u4e00\u79cd\u5173\u7cfb\u3002\u5728\u5b9a\u4e49\u548c\u5b9e\u73b0\u4e00\u4e2a\u7c7b\u7684\u65f6\u5019\uff0c\u53ef\u4ee5\u5728\u4e00\u4e2a\u5df2\u7ecf\u5b58\u5728\u7684\u7c7b\u7684\u57fa\u7840\u4e4b\u4e0a\u6765\u8fdb\u884c\uff0c\u628a\u8fd9\u4e2a\u5df2\u7ecf\u5b58\u5728\u7684\u7c7b\u6240\u5b9a\u4e49\u7684\u5185\u5bb9\u4f5c\u4e3a\u81ea\u5df1\u7684\u5185\u5bb9\uff0c\u5e76\u52a0\u5165\u82e5\u5e72\u65b0\u7684\u5185\u5bb9\u3002<\/p>\n
\u7236\u7c7b<\/strong> \u2212 \u4e00\u4e2a\u7c7b\u88ab\u5176\u4ed6\u7c7b\u7ee7\u627f\uff0c\u53ef\u5c06\u8be5\u7c7b\u79f0\u4e3a\u7236\u7c7b\uff0c\u6216\u57fa\u7c7b\uff0c\u6216\u8d85\u7c7b\u3002<\/p>\n
\u5b50\u7c7b<\/strong> \u2212 \u4e00\u4e2a\u7c7b\u7ee7\u627f\u5176\u4ed6\u7c7b\u79f0\u4e3a\u5b50\u7c7b\uff0c\u4e5f\u53ef\u79f0\u4e3a\u6d3e\u751f\u7c7b\u3002<\/p>\n
\u591a\u6001<\/strong> \u2212 \u591a\u6001\u6027\u662f\u6307\u76f8\u540c\u7684\u64cd\u4f5c\u6216\u51fd\u6570\u3001\u8fc7\u7a0b\u53ef\u4f5c\u7528\u4e8e\u591a\u79cd\u7c7b\u578b\u7684\u5bf9\u8c61\u4e0a\u5e76\u83b7\u5f97\u4e0d\u540c\u7684\u7ed3\u679c\u3002\u4e0d\u540c\u7684\u5bf9\u8c61\uff0c\u6536\u5230\u540c\u4e00\u6d88\u606f\u53ef\u4ee5\u4ea7\u751f\u4e0d\u540c\u7684\u7ed3\u679c\uff0c\u8fd9\u79cd\u73b0\u8c61\u79f0\u4e3a\u591a\u6001\u6027\u3002<\/p>\n
\u91cd\u8f7d<\/strong> \u2212 \u7b80\u5355\u8bf4\uff0c\u5c31\u662f\u51fd\u6570\u6216\u8005\u65b9\u6cd5\u6709\u540c\u6837\u7684\u540d\u79f0\uff0c\u4f46\u662f\u53c2\u6570\u5217\u8868\u4e0d\u76f8\u540c\u7684\u60c5\u5f62\uff0c\u8fd9\u6837\u7684\u540c\u540d\u4e0d\u540c\u53c2\u6570\u7684\u51fd\u6570\u6216\u8005\u65b9\u6cd5\u4e4b\u95f4\uff0c\u4e92\u76f8\u79f0\u4e4b\u4e3a\u91cd\u8f7d\u51fd\u6570\u6216\u8005\u65b9\u6cd5\u3002<\/p>\n
\u62bd\u8c61\u6027<\/strong> \u2212 \u62bd\u8c61\u6027\u662f\u6307\u5c06\u5177\u6709\u4e00\u81f4\u7684\u6570\u636e\u7ed3\u6784\uff08\u5c5e\u6027\uff09\u548c\u884c\u4e3a\uff08\u64cd\u4f5c\uff09\u7684\u5bf9\u8c61\u62bd\u8c61\u6210\u7c7b\u3002\u4e00\u4e2a\u7c7b\u5c31\u662f\u8fd9\u6837\u4e00\u79cd\u62bd\u8c61\uff0c\u5b83\u53cd\u6620\u4e86\u4e0e\u5e94\u7528\u6709\u5173\u7684\u91cd\u8981\u6027\u8d28\uff0c\u800c\u5ffd\u7565\u5176\u4ed6\u4e00\u4e9b\u65e0\u5173\u5185\u5bb9\u3002\u4efb\u4f55\u7c7b\u7684\u5212\u5206\u90fd\u662f\u4e3b\u89c2\u7684\uff0c\u4f46\u5fc5\u987b\u4e0e\u5177\u4f53\u7684\u5e94\u7528\u6709\u5173\u3002<\/p>\n
\u5c01\u88c5<\/strong> \u2212 \u5c01\u88c5\u662f\u6307\u5c06\u73b0\u5b9e\u4e16\u754c\u4e2d\u5b58\u5728\u7684\u67d0\u4e2a\u5ba2\u4f53\u7684\u5c5e\u6027\u4e0e\u884c\u4e3a\u7ed1\u5b9a\u5728\u4e00\u8d77\uff0c\u5e76\u653e\u7f6e\u5728\u4e00\u4e2a\u903b\u8f91\u5355\u5143\u5185\u3002<\/p>\n
\u6784\u9020\u51fd\u6570<\/strong> \u2212 \u4e3b\u8981\u7528\u6765\u5728\u521b\u5efa\u5bf9\u8c61\u65f6\u521d\u59cb\u5316\u5bf9\u8c61\uff0c \u5373\u4e3a\u5bf9\u8c61\u6210\u5458\u53d8\u91cf\u8d4b\u521d\u59cb\u503c\uff0c\u603b\u4e0e new \u8fd0\u7b97\u7b26\u4e00\u8d77\u4f7f\u7528\u5728\u521b\u5efa\u5bf9\u8c61\u7684\u8bed\u53e5\u4e2d\u3002<\/p>\n
\u6790\u6784\u51fd\u6570<\/strong> \u2212 \u6790\u6784\u51fd\u6570(destructor) \u4e0e\u6784\u9020\u51fd\u6570\u76f8\u53cd\uff0c\u5f53\u5bf9\u8c61\u7ed3\u675f\u5176\u751f\u547d\u5468\u671f\u65f6\uff08\u4f8b\u5982\u5bf9\u8c61\u6240\u5728\u7684\u51fd\u6570\u5df2\u8c03\u7528\u5b8c\u6bd5\uff09\uff0c\u7cfb\u7edf\u81ea\u52a8\u6267\u884c\u6790\u6784\u51fd\u6570\u3002\u6790\u6784\u51fd\u6570\u5f80\u5f80\u7528\u6765\u505a"\u6e05\u7406\u5584\u540e" \u7684\u5de5\u4f5c\uff08\u4f8b\u5982\u5728\u5efa\u7acb\u5bf9\u8c61\u65f6\u7528 new \u5f00\u8f9f\u4e86\u4e00\u7247\u5185\u5b58\u7a7a\u95f4\uff0c\u5e94\u5728\u9000\u51fa\u524d\u5728\u6790\u6784\u51fd\u6570\u4e2d\u7528 delete \u91ca\u653e\uff09\u3002<\/p>\n
\u4e0b\u56fe\u4e2d\u6211\u4eec\u901a\u8fc7 Car \u7c7b \u521b\u5efa\u4e86\u4e09\u4e2a\u5bf9\u8c61\uff1aMercedes, Bmw, \u548c Audi\u3002<\/p>\n
$mercedes = new Car ();<\/p>\n
$bmw = new Car ();<\/p>\n
$audi = new Car ();<\/p>\n
![\"1745378344019-f740992a-f9be-480b-9413-2945113b5cab.png\"](\"https:\/\/www.youvii.site\/wp-content\/themes\/lolimeow-lolimeowV13.13\/assets\/images\/loading.gif\")
<\/p>\nPHP \u7c7b\u5b9a\u4e49<\/h2>\n
PHP \u5b9a\u4e49\u7c7b\u901a\u5e38\u8bed\u6cd5\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n
<?php\nclass phpClass {\nvar $var1;\nvar $var2 = \"constant string\";\nfunction myfunc ($arg1, $arg2) {\n[..]\n}\n[..]\n}\n?><\/code><\/pre>\n\u89e3\u6790\u5982\u4e0b\uff1a<\/p>\n
\u7c7b\u4f7f\u7528 class \u5173\u952e\u5b57\u540e\u52a0\u4e0a\u7c7b\u540d\u5b9a\u4e49\u3002<\/p>\n
\u7c7b\u540d\u540e\u7684\u4e00\u5bf9\u5927\u62ec\u53f7({})\u5185\u53ef\u4ee5\u5b9a\u4e49\u53d8\u91cf\u548c\u65b9\u6cd5\u3002<\/p>\n
\u7c7b\u7684\u53d8\u91cf\u4f7f\u7528 var \u6765\u58f0\u660e, \u53d8\u91cf\u4e5f\u53ef\u4ee5\u521d\u59cb\u5316\u503c\u3002<\/p>\n
\u51fd\u6570\u5b9a\u4e49\u7c7b\u4f3c PHP \u51fd\u6570\u7684\u5b9a\u4e49\uff0c\u4f46\u51fd\u6570\u53ea\u80fd\u901a\u8fc7\u8be5\u7c7b\u53ca\u5176\u5b9e\u4f8b\u5316\u7684\u5bf9\u8c61\u8bbf\u95ee\u3002<\/p>\n
\u5b9e\u4f8b<\/p>\n
<?php\nclass Site {\n\/* \u6210\u5458\u53d8\u91cf *\/\nvar $url;\nvar $title;\n\/* \u6210\u5458\u51fd\u6570 *\/\nfunction setUrl($par){\n$this->url = $par;\n}\nfunction getUrl(){\necho $this->url . PHP_EOL;\n}\nfunction setTitle($par){\n$this->title = $par;\n}\nfunction getTitle(){\necho $this->title . PHP_EOL;\n}\n}\n?><\/code><\/pre>\n\u53d8\u91cf $this \u4ee3\u8868\u81ea\u8eab\u7684\u5bf9\u8c61\u3002<\/p>\n
PHP_EOL \u4e3a\u6362\u884c\u7b26\u3002<\/p>\n
PHP \u4e2d\u521b\u5efa\u5bf9\u8c61<\/p>\n
\u7c7b\u521b\u5efa\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528 new \u8fd0\u7b97\u7b26\u6765\u5b9e\u4f8b\u5316\u8be5\u7c7b\u7684\u5bf9\u8c61\uff1a<\/p>\n
$w3cschool = new Site;<\/p>\n
$taobao = new Site;<\/p>\n
$google = new Site;<\/p>\n
\u4ee5\u4e0a\u4ee3\u7801\u6211\u4eec\u521b\u5efa\u4e86\u4e09\u4e2a\u5bf9\u8c61\uff0c\u4e09\u4e2a\u5bf9\u8c61\u5404\u81ea\u90fd\u662f\u72ec\u7acb\u7684\uff0c\u63a5\u4e0b\u6765\u6211\u4eec\u6765\u770b\u770b\u5982<\/p>\n
\u4f55\u8bbf\u95ee\u6210\u5458\u65b9\u6cd5\u4e0e\u6210\u5458\u53d8\u91cf\u3002<\/p>\n
\u8c03\u7528\u6210\u5458\u65b9\u6cd5<\/p>\n
\u5728\u5b9e\u4f8b\u5316\u5bf9\u8c61\u540e\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u8be5\u5bf9\u8c61\u8c03\u7528\u6210\u5458\u65b9\u6cd5\uff0c\u8be5\u5bf9\u8c61\u7684\u6210\u5458\u65b9\u6cd5\u53ea\u80fd\u64cd<\/p>\n
\u4f5c\u8be5\u5bf9\u8c61\u7684\u6210\u5458\u53d8\u91cf\uff1a<\/p>\n
\/\/ \u8c03\u7528\u6210\u5458\u51fd\u6570\uff0c\u8bbe\u7f6e\u6807\u9898\u548c URL<\/p>\n
$w3cschool->setTitle( "W3Cschool \u6559\u7a0b" );<\/p>\n
$taobao->setTitle( "\u6dd8\u5b9d" );<\/p>\n
$google->setTitle( "Google \u641c\u7d22" );<\/p>\n
$w3cschool->setUrl( ‘www.w3cschool.cn’ );<\/p>\n
$taobao->setUrl( ‘www.taobao.com’ );<\/p>\n
$google->setUrl( ‘www.google.com’ );<\/p>\n
\/\/ \u8c03\u7528\u6210\u5458\u51fd\u6570\uff0c\u83b7\u53d6\u6807\u9898\u548c URL<\/p>\n
$w3cschool->getTitle();<\/p>\n
$taobao->getTitle();<\/p>\n
$google->getTitle();<\/p>\n
$w3cschool->getUrl();<\/p>\n
$taobao->getUrl();<\/p>\n
$google->getUrl();<\/p>\n
\u5b8c\u6574\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n
<?php\nclass Site {\n\/* \u6210\u5458\u53d8\u91cf *\/\nvar $url;\nvar $title;\n\/* \u6210\u5458\u51fd\u6570 *\/\nfunction setUrl($par){\n$this ->url = $par;\n}\nfunction getUrl (){\necho $this->url . PHP_EOL ;\n}\nfunction setTitle($par){\n$this ->title = $par;\n}\nfunction getTitle (){\necho $this->title . PHP_EOL ;\n}\n}\n$w3cschool = new Site;\n$taobao = new Site;\n$google = new Site;\n\/\/ \u8c03\u7528\u6210\u5458\u51fd\u6570\uff0c\u8bbe\u7f6e\u6807\u9898\u548c URL\n$w3cschool->setTitle( \"W3Cschool \u6559\u7a0b\" );\n$taobao ->setTitle( \"\u6dd8\u5b9d\" );\n$google-> setTitle( \"Google \u641c\u7d22\" );\n$w3cschool-> setUrl( 'www.w3cschool.cn' );\n$taobao->setUrl ( 'www.taobao.com' );\n$google->setUrl( 'www.google.com' );\n\/\/ \u8c03\u7528\u6210\u5458\u51fd\u6570\uff0c\u83b7\u53d6\u6807\u9898\u548c URL\n$w3cschool->getTitle ();\n$taobao->getTitle();\n$google-> getTitle();\n$w3cschool->getUrl();\n$taobao ->getUrl();\n$google->getUrl();\n?><\/code><\/pre>\n\u6267\u884c\u4ee5\u4e0a\u4ee3\u7801\uff0c\u8f93\u51fa\u7ed3\u679c\u4e3a\uff1a<\/p>\n
W3Cschool \u6559\u7a0b<\/p>\n
\u6dd8\u5b9d<\/p>\n
Google \u641c\u7d22<\/p>\n
www.w3cschool.cn<\/p>\n
www.taobao.com<\/p>\n
www.google.com<\/p>\n
PHP \u6784\u9020\u51fd\u6570<\/h3>\n
\u6784\u9020\u51fd\u6570 \uff0c\u662f\u4e00\u79cd\u7279\u6b8a\u7684\u65b9\u6cd5\u3002\u4e3b\u8981\u7528\u6765\u5728\u521b\u5efa\u5bf9\u8c61\u65f6\u521d\u59cb\u5316\u5bf9\u8c61\uff0c \u5373\u4e3a\u5bf9\u8c61\u6210\u5458\u53d8\u91cf\u8d4b\u521d\u59cb\u503c\uff0c\u603b\u4e0e new \u8fd0\u7b97\u7b26\u4e00\u8d77\u4f7f\u7528\u5728\u521b\u5efa\u5bf9\u8c61\u7684\u8bed\u53e5\u4e2d\u3002<\/p>\n
PHP 5 \u5141\u884c\u5f00\u53d1\u8005\u5728\u4e00\u4e2a\u7c7b\u4e2d\u5b9a\u4e49\u4e00\u4e2a\u65b9\u6cd5\u4f5c\u4e3a\u6784\u9020\u51fd\u6570\uff0c\u8bed\u6cd5\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n
void __construct ([ mixed $args [, $… ]] )<\/p>\n
\u5728\u4e0a\u9762\u7684\u4f8b\u5b50\u4e2d\u6211\u4eec\u5c31\u53ef\u4ee5\u901a\u8fc7\u6784\u9020\u65b9\u6cd5\u6765\u521d\u59cb\u5316 $url \u548c $title \u53d8\u91cf\uff1a<\/p>\n
function __construct( $par1, $par2 ) {<\/p>\n
$this->url = $par1;<\/p>\n
$this->title = $par2;<\/p>\n
}<\/p>\n
\u73b0\u5728\u6211\u4eec\u5c31\u4e0d\u9700\u8981\u518d\u8c03\u7528 setTitle \u548c setUrl \u65b9\u6cd5\u4e86\uff1a<\/p>\n
$youj = new Site(‘www.w3cschool.cn’, ‘W3Cschool \u6559\u7a0b’);<\/p>\n
$taobao = new Site(‘www.taobao.com’, ‘\u6dd8\u5b9d’);<\/p>\n
$google = new Site(‘www.google.com’, ‘Google \u641c\u7d22’);<\/p>\n
\/\/ \u8c03\u7528\u6210\u5458\u51fd\u6570\uff0c\u83b7\u53d6\u6807\u9898\u548c URL<\/p>\n
$youj->getTitle();<\/p>\n
$taobao->getTitle();<\/p>\n
$google->getTitle();<\/p>\n
$youj->getUrl();<\/p>\n
$taobao->getUrl();<\/p>\n
$google->getUrl();<\/p>\n
\u6790\u6784\u51fd\u6570<\/h3>\n
\u6790\u6784\u51fd\u6570(destructor) \u4e0e\u6784\u9020\u51fd\u6570\u76f8\u53cd\uff0c\u5f53\u5bf9\u8c61\u7ed3\u675f\u5176\u751f\u547d\u5468\u671f\u65f6\uff08\u4f8b\u5982\u5bf9\u8c61\u6240\u5728\u7684\u51fd\u6570\u5df2\u8c03\u7528\u5b8c\u6bd5\uff09\uff0c\u7cfb\u7edf\u81ea\u52a8\u6267\u884c\u6790\u6784\u51fd\u6570\u3002<\/p>\n
PHP 5 \u5f15\u5165\u4e86\u6790\u6784\u51fd\u6570\u7684\u6982\u5ff5\uff0c\u8fd9\u7c7b\u4f3c\u4e8e\u5176\u5b83\u9762\u5411\u5bf9\u8c61\u7684\u8bed\u8a00\uff0c\u5176\u8bed\u6cd5\u683c\u5f0f\u5982\u4e0b\uff1a<\/p>\n
void __destruct ( void )<\/p>\n
\u5b9e\u4f8b<\/p>\n
<?php\nclass MyDestructableClass {\nfunction __construct() {\nprint \"\u6784\u9020\u51fd\u6570n\";\n$this->name = \"MyDestructableClass\";\n}\nfunction __destruct() {\nprint \"\u9500\u6bc1 \" . $this->name . \"n\";\n}\n}\n$obj = new MyDestructableClass();\n?><\/code><\/pre>\n\u6267\u884c\u4ee5\u4e0a\u4ee3\u7801\uff0c\u8f93\u51fa\u7ed3\u679c\u4e3a\uff1a<\/p>\n
\u6784\u9020\u51fd\u6570<\/p>\n
\u9500\u6bc1 MyDestructableClass<\/p>\n
\u7ee7\u627f<\/h3>\n
\u7ee7\u627f\u5c31\u662f\u5b50\u7c7b\u7ee7\u627f\u7236\u7c7b\u7684\u7279\u5f81\u548c\u884c\u4e3a\uff0c\u4f7f\u5f97\u5b50\u7c7b\u5bf9\u8c61\uff08\u5b9e\u4f8b\uff09\u5177\u6709\u7236\u7c7b\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\uff0c\u6216\u5b50\u7c7b\u4ece\u7236\u7c7b\u7ee7\u627f\u65b9\u6cd5\uff0c\u4f7f\u5f97\u5b50\u7c7b\u5177\u6709\u7236\u7c7b\u76f8\u540c\u7684\u884c\u4e3a\u3002<\/p>\n
\u7236\u7c7b=\u57fa\u7c7b<\/p>\n
PHP \u4f7f\u7528\u5173\u952e\u5b57 extends \u6765\u7ee7\u627f\u4e00\u4e2a\u7c7b\uff0cPHP \u4e0d\u652f\u6301\u591a\u7ee7\u627f\uff0c\u683c\u5f0f<\/p>\n
class Child extends Parent {<\/p>\n
\/\/ \u4ee3\u7801\u90e8\u5206<\/p>\n
}<\/p>\n
\u5982\u4e0b\uff1a<\/p>\n
\u5b9e\u4f8b<\/p>\n
\u5b9e\u4f8b\u4e2d Child_Site \u7c7b\u7ee7\u627f\u4e86 Site \u7c7b\uff0c\u5e76\u6269\u5c55\u4e86\u529f\u80fd\uff1a<\/p>\n
<?php\n\/\/ \u5b50\u7c7b\u6269\u5c55\u7ad9\u70b9\u7c7b\u522b\nclass Child_Site extends Site {\nvar $category;\nfunction setCate($par){\n$this->category = $par;\n}\nfunction getCate(){\necho $this->category . PHP_EOL;\n}\n}<\/code><\/pre>\n\u65b9\u6cd5\u91cd\u5199<\/h3>\n
\u5982\u679c\u4ece\u7236\u7c7b\u7ee7\u627f\u7684\u65b9\u6cd5\u4e0d\u80fd\u6ee1\u8db3\u5b50\u7c7b\u7684\u9700\u6c42\uff0c\u53ef\u4ee5\u5bf9\u5176\u8fdb\u884c\u6539\u5199\uff0c\u8fd9\u4e2a\u8fc7\u7a0b\u53eb\u65b9\u6cd5\u7684\u8986\u76d6\uff08override\uff09\uff0c\u4e5f\u79f0\u4e3a\u65b9\u6cd5\u7684\u91cd\u5199\u3002<\/p>\n
\u5b9e\u4f8b\u4e2d\u91cd\u5199\u4e86 getUrl \u4e0e getTitle \u65b9\u6cd5\uff1a<\/p>\n
function getUrl() {\necho $this->url . PHP_EOL;\nreturn $this->url;\n}\nfunction getTitle(){\necho $this->title . PHP_EOL;\nreturn $this->title;\n}<\/code><\/pre>\n\u8bbf\u95ee\u63a7\u5236<\/h3>\n
PHP \u5bf9\u5c5e\u6027\u6216\u65b9\u6cd5\u7684\u8bbf\u95ee\u63a7\u5236\uff0c\u662f\u901a\u8fc7\u5728\u524d\u9762\u6dfb\u52a0\u5173\u952e\u5b57 public\uff08\u516c\u6709\uff09\uff0c<\/p>\n
protected\uff08\u53d7\u4fdd\u62a4\uff09\u6216 private\uff08\u79c1\u6709\uff09\u6765\u5b9e\u73b0\u7684\u3002<\/p>\n
public\uff08\u516c\u6709\uff09\uff1a\u516c\u6709\u7684\u7c7b\u6210\u5458\u53ef\u4ee5\u5728\u4efb\u4f55\u5730\u65b9\u88ab\u8bbf\u95ee\u3002<\/p>\n
protected\uff08\u53d7\u4fdd\u62a4\uff09\uff1a\u53d7\u4fdd\u62a4\u7684\u7c7b\u6210\u5458\u5219\u53ef\u4ee5\u88ab\u5176\u81ea\u8eab\u4ee5\u53ca\u5176\u5b50\u7c7b\u548c\u7236\u7c7b\u8bbf\u95ee\u3002<\/p>\n
private\uff08\u79c1\u6709\uff09\uff1a\u79c1\u6709\u7684\u7c7b\u6210\u5458\u5219\u53ea\u80fd\u88ab\u5176\u5b9a\u4e49\u6240\u5728\u7684\u7c7b\u8bbf\u95ee\u3002<\/p>\n
\u5c5e\u6027\u7684\u8bbf\u95ee\u63a7\u5236\u7c7b\u5c5e\u6027\u5fc5\u987b\u5b9a\u4e49\u4e3a\u516c\u6709\uff0c\u53d7\u4fdd\u62a4\uff0c\u79c1\u6709\u4e4b\u4e00\u3002\u5982\u679c\u7528 var \u5b9a\u4e49\uff0c\u5219\u88ab\u89c6\u4e3a\u516c\u6709\u3002<\/p>\n
<?php\n\/**\n* Define MyClass\n*\/\nclass MyClass\n{\npublic $public = 'Public';\nprotected $protected = 'Protected';\nprivate $private = 'Private';\nfunction printHello()\n{\necho $this->public;\necho $this->protected;\necho $this->private;\n}\n}\n$obj = new MyClass();\necho $obj->public; \/\/ \u8fd9\u884c\u80fd\u88ab\u6b63\u5e38\u6267\u884c\necho $obj->protected; \/\/ \u8fd9\u884c\u4f1a\u4ea7\u751f\u4e00\u4e2a\u81f4\u547d\u9519\u8bef\necho $obj->private; \/\/ \u8fd9\u884c\u4e5f\u4f1a\u4ea7\u751f\u4e00\u4e2a\u81f4\u547d\u9519\u8bef\n$obj->printHello(); \/\/ \u8f93\u51fa Public\u3001Protected \u548c Private\n\/**\n* Define MyClass2\n*\/\nclass MyClass2 extends MyClass\n{\n\/\/ \u53ef\u4ee5\u5bf9 public \u548c protected \u8fdb\u884c\u91cd\u5b9a\u4e49\uff0c\u4f46 private \u800c\u4e0d\u80fd\nprotected $protected = 'Protected2';\nfunction printHello()\n{\necho $this->public;\necho $this->protected;\necho $this->private;\n}\n}\n$obj2 = new MyClass2();\necho $obj2->public; \/\/ \u8fd9\u884c\u80fd\u88ab\u6b63\u5e38\u6267\u884c\necho $obj2->private; \/\/ \u672a\u5b9a\u4e49 private\necho $obj2->protected; \/\/ \u8fd9\u884c\u4f1a\u4ea7\u751f\u4e00\u4e2a\u81f4\u547d\u9519\u8bef\n$obj2->printHello(); \/\/ \u8f93\u51fa Public\u3001Protected2 \u548c Undefined\n?><\/code><\/pre>\n\u65b9\u6cd5\u7684\u8bbf\u95ee\u63a7\u5236<\/h3>\n
\u7c7b\u4e2d\u7684\u65b9\u6cd5\u53ef\u4ee5\u88ab\u5b9a\u4e49\u4e3a\u516c\u6709\uff0c\u79c1\u6709\u6216\u53d7\u4fdd\u62a4\u3002\u5982\u679c\u6ca1\u6709\u8bbe\u7f6e\u8fd9\u4e9b\u5173\u952e\u5b57\uff0c\u5219\u8be5\u65b9\u516c\u6709<\/p>\n
<?php\n\/**\n* Define MyClass\n*\/\nclass MyClass\n{\n\/\/ \u58f0\u660e\u4e00\u4e2a\u516c\u6709\u7684\u6784\u9020\u51fd\u6570\npublic function __construct() { }\n\/\/ \u58f0\u660e\u4e00\u4e2a\u516c\u6709\u7684\u65b9\u6cd5\npublic function MyPublic() { }\n\/\/ \u58f0\u660e\u4e00\u4e2a\u53d7\u4fdd\u62a4\u7684\u65b9\u6cd5\nprotected function MyProtected() { }\n\/\/ \u58f0\u660e\u4e00\u4e2a\u79c1\u6709\u7684\u65b9\u6cd5\nprivate function MyPrivate() { }\n\/\/ \u6b64\u65b9\u6cd5\u4e3a\u516c\u6709\nfunction Foo()\n{\n$this->MyPublic();\n$this->MyProtected();\n$this->MyPrivate();\n}\n}\n$myclass = new MyClass;\n$myclass->MyPublic(); \/\/ \u8fd9\u884c\u80fd\u88ab\u6b63\u5e38\u6267\u884c\n$myclass->MyProtected(); \/\/ \u8fd9\u884c\u4f1a\u4ea7\u751f\u4e00\u4e2a\u81f4\u547d\u9519\u8bef\n$myclass->MyPrivate(); \/\/ \u8fd9\u884c\u4f1a\u4ea7\u751f\u4e00\u4e2a\u81f4\u547d\u9519\u8bef\n$myclass->Foo(); \/\/ \u516c\u6709\uff0c\u53d7\u4fdd\u62a4\uff0c\u79c1\u6709\u90fd\u53ef\u4ee5\u6267\u884c\n\/**\n* Define MyClass2\n*\/\nclass MyClass2 extends MyClass\n{\n\/\/ \u6b64\u65b9\u6cd5\u4e3a\u516c\u6709\nfunction Foo2()\n{\n$this->MyPublic();\n$this->MyProtected();\n$this->MyPrivate(); \/\/ \u8fd9\u884c\u4f1a\u4ea7\u751f\u4e00\u4e2a\u81f4\u547d\u9519\u8bef\n}\n}\n$myclass2 = new MyClass2;\n$myclass2->MyPublic(); \/\/ \u8fd9\u884c\u80fd\u88ab\u6b63\u5e38\u6267\u884c\n$myclass2->Foo2(); \/\/ \u516c\u6709\u7684\u548c\u53d7\u4fdd\u62a4\u7684\u90fd\u53ef\u6267\u884c\uff0c\u4f46\u79c1\u6709\u7684\u4e0d\u884c\nclass Bar\n{\npublic function test() {\n$this->testPrivate();\n$this->testPublic();\n}\npublic function testPublic() {\necho \"Bar::testPublicn\";\n}\nprivate function testPrivate() {\necho \"Bar::testPrivaten\";\n}\n}\nclass Foo extends Bar\n{\npublic function testPublic() {\necho \"Foo::testPublicn\";\n}\nprivate function testPrivate() {\necho \"Foo::testPrivaten\";\n}\n}\n$myFoo = new foo();\n$myFoo->test(); \/\/ Bar::testPrivate\n\/\/ Foo::testPublic\n?><\/code><\/pre>\n\u63a5\u53e3<\/h3>\n
\u4f7f\u7528\u63a5\u53e3\uff08interface\uff09\uff0c\u53ef\u4ee5\u6307\u5b9a\u67d0\u4e2a\u7c7b\u5fc5\u987b\u5b9e\u73b0\u54ea\u4e9b\u65b9\u6cd5\uff0c\u4f46\u4e0d\u9700\u8981\u5b9a\u4e49\u8fd9\u4e9b\u65b9\u6cd5\u7684\u5177\u4f53\u5185\u5bb9\u3002\u63a5\u53e3\u662f\u901a\u8fc7 interface \u5173\u952e\u5b57\u6765\u5b9a\u4e49\u7684\uff0c\u5c31\u50cf\u5b9a\u4e49\u4e00\u4e2a\u6807\u51c6\u7684\u7c7b\u4e00\u6837\uff0c\u4f46\u5176\u4e2d\u5b9a\u4e49\u6240\u6709\u7684\u65b9\u6cd5\u90fd\u662f\u7a7a\u7684\u3002<\/p>\n
\u63a5\u53e3\u4e2d\u5b9a\u4e49\u7684\u6240\u6709\u65b9\u6cd5\u90fd\u5fc5\u987b\u662f\u516c\u6709\uff0c\u8fd9\u662f\u63a5\u53e3\u7684\u7279\u6027\u3002<\/p>\n
\u8981\u5b9e\u73b0\u4e00\u4e2a\u63a5\u53e3\uff0c\u4f7f\u7528 implements \u64cd\u4f5c\u7b26\u3002\u7c7b\u4e2d\u5fc5\u987b\u5b9e\u73b0\u63a5\u53e3\u4e2d\u5b9a\u4e49\u7684\u6240\u6709\u65b9\u6cd5\uff0c\u5426\u5219\u4f1a\u62a5\u4e00\u4e2a\u81f4\u547d\u9519\u8bef\u3002\u7c7b\u53ef\u4ee5\u5b9e\u73b0\u591a\u4e2a\u63a5\u53e3\uff0c\u7528\u9017\u53f7\u6765\u5206\u9694\u591a\u4e2a\u63a5\u53e3\u7684\u540d\u79f0\u3002<\/p>\n
<?php\n\/\/ \u58f0\u660e\u4e00\u4e2a'iTemplate'\u63a5\u53e3\ninterface iTemplate\n{\npublic function setVariable($name, $var);\npublic function getHtml($template);\n}\n\/\/ \u5b9e\u73b0\u63a5\u53e3\nclass Template implements iTemplate\n{\nprivate $vars = array();\npublic function setVariable($name, $var)\n{\n$this->vars[$name] = $var;\n}\npublic function getHtml($template)\n{\nforeach($this->vars as $name => $value) {\n$template = str_replace('{' . $name . '}', $value, $template);\n}\nreturn $template;\n}\n}<\/code><\/pre>\n\u5e38\u91cf<\/h3>\n
\u53ef\u4ee5\u628a\u5728\u7c7b\u4e2d\u59cb\u7ec8\u4fdd\u6301\u4e0d\u53d8\u7684\u503c\u5b9a\u4e49\u4e3a\u5e38\u91cf\u3002\u5728\u5b9a\u4e49\u548c\u4f7f\u7528\u5e38\u91cf\u7684\u65f6\u5019\u4e0d\u9700\u8981\u4f7f<\/p>\n
\u7528 $ \u7b26\u53f7\u3002<\/p>\n
\u5e38\u91cf\u7684\u503c\u5fc5\u987b\u662f\u4e00\u4e2a\u5b9a\u503c\uff0c\u4e0d\u80fd\u662f\u53d8\u91cf\uff0c\u7c7b\u5c5e\u6027\uff0c\u6570\u5b66\u8fd0\u7b97\u7684\u7ed3\u679c\u6216\u51fd\u6570\u8c03\u7528\u3002<\/p>\n
\u81ea PHP 5.3.0 \u8d77\uff0c\u53ef\u4ee5\u7528\u4e00\u4e2a\u53d8\u91cf\u6765\u52a8\u6001\u8c03\u7528\u7c7b\u3002\u4f46\u8be5\u53d8\u91cf\u7684\u503c\u4e0d\u80fd\u4e3a\u5173\u952e\u5b57<\/p>\n
\uff08\u5982 self\uff0cparent \u6216 static\uff09\u3002<\/p>\n
\u5b9e\u4f8b<\/p>\n
<?php\nclass MyClass\n{\nconst constant = '\u5e38\u91cf\u503c';\nfunction showConstant() {\necho self::constant . PHP_EOL;\n}\n}\necho MyClass::constant . PHP_EOL;\n$classname = \"MyClass\";\necho $classname::constant . PHP_EOL; \/\/ \u81ea 5.3.0 \u8d77\n$class = new MyClass();\n$class->showConstant();\necho $class::constant . PHP_EOL; \/\/ \u81ea PHP 5.3.0 \u8d77\n?><\/code><\/pre>\n\u62bd\u8c61\u7c7b<\/h3>\n
\u4efb\u4f55\u4e00\u4e2a\u7c7b\uff0c\u5982\u679c\u5b83\u91cc\u9762\u81f3\u5c11\u6709\u4e00\u4e2a\u65b9\u6cd5\u662f\u88ab\u58f0\u660e\u4e3a\u62bd\u8c61\u7684\uff0c\u90a3\u4e48\u8fd9\u4e2a\u7c7b\u5c31\u5fc5\u987b\u88ab\u58f0\u660e\u4e3a\u62bd\u8c61\u7684\u3002\u5b9a\u4e49\u4e3a\u62bd\u8c61\u7684\u7c7b\u4e0d\u80fd\u88ab\u5b9e\u4f8b\u5316\u3002\u88ab\u5b9a\u4e49\u4e3a\u62bd\u8c61\u7684\u65b9\u6cd5\u53ea\u662f\u58f0\u660e\u4e86\u5176\u8c03\u7528\u65b9\u5f0f\uff08\u53c2\u6570\uff09\uff0c\u4e0d\u80fd\u5b9a\u4e49\u5176\u5177\u4f53\u7684\u529f\u80fd\u5b9e\u73b0\u3002\u7ee7\u627f\u4e00\u4e2a\u62bd\u8c61\u7c7b\u7684\u65f6\u5019\uff0c\u5b50\u7c7b\u5fc5\u987b\u5b9a\u4e49\u7236\u7c7b\u4e2d\u7684\u6240\u6709\u62bd\u8c61\u65b9\u6cd5\uff1b\u53e6\u5916\uff0c\u8fd9\u4e9b\u65b9\u6cd5\u7684\u8bbf\u95ee\u63a7\u5236\u5fc5\u987b\u548c\u7236\u7c7b\u4e2d\u4e00\u6837\uff08\u6216\u8005\u66f4\u4e3a\u5bbd\u677e\uff09\u3002\u4f8b\u5982\u67d0\u4e2a\u62bd\u8c61\u65b9\u6cd5\u88ab\u58f0\u660e\u4e3a\u53d7\u4fdd\u62a4\u7684\uff0c\u90a3\u4e48\u5b50\u7c7b\u4e2d\u5b9e\u73b0\u7684\u65b9\u6cd5\u5c31\u5e94\u8be5\u58f0\u660e\u4e3a\u53d7\u4fdd\u62a4\u7684\u6216\u8005\u516c\u6709\u7684\uff0c\u800c\u4e0d\u80fd\u5b9a\u4e49\u4e3a\u79c1\u6709\u7684\u3002<\/p>\n
<?php\nabstract class AbstractClass\n{\n\/\/ \u5f3a\u5236\u8981\u6c42\u5b50\u7c7b\u5b9a\u4e49\u8fd9\u4e9b\u65b9\u6cd5\nabstract protected function getValue();\nabstract protected function prefixValue($prefix);\n\/\/ \u666e\u901a\u65b9\u6cd5\uff08\u975e\u62bd\u8c61\u65b9\u6cd5\uff09\npublic function printOut() {\nprint $this->getValue() . PHP_EOL;\n}\n}\nclass ConcreteClass1 extends AbstractClass\n{\nprotected function getValue() {\nreturn \"ConcreteClass1\";\n}\npublic function prefixValue($prefix) {\nreturn \"{$prefix}ConcreteClass1\";\n}\n}\nclass ConcreteClass2 extends AbstractClass\n{\npublic function getValue() {\nreturn \"ConcreteClass2\";\n}\npublic function prefixValue($prefix) {\nreturn \"{$prefix}ConcreteClass2\";\n}\n}\n$class1 = new ConcreteClass1;\n$class1->printOut();\necho $class1->prefixValue('FOO_') . PHP_EOL;\n$class2 = new ConcreteClass2;\n$class2->printOut();\necho $class2->prefixValue('FOO_') . PHP_EOL;\n?><\/code><\/pre>\n\u6267\u884c\u4ee5\u4e0a\u4ee3\u7801\uff0c\u8f93\u51fa\u7ed3\u679c\u4e3a\uff1a<\/p>\n
ConcreteClass1<\/p>\n
FOO_ConcreteClass1<\/p>\n
ConcreteClass2<\/p>\n
FOO_ConcreteClass2<\/p>\n
\u6b64\u5916\uff0c\u5b50\u7c7b\u65b9\u6cd5\u53ef\u4ee5\u5305\u542b\u7236\u7c7b\u62bd\u8c61\u65b9\u6cd5\u4e2d\u4e0d\u5b58\u5728\u7684\u53ef\u9009\u53c2\u6570\u3002\u4f8b\u5982\uff0c\u5b50\u7c7b\u5b9a\u4e49\u4e86\u4e00\u4e2a\u53ef\u9009\u53c2\u6570\uff0c\u800c\u7236\u7c7b\u62bd\u8c61\u65b9\u6cd5\u7684\u58f0\u660e\u91cc\u6ca1\u6709\uff0c\u5219\u90fd\u662f\u53ef\u4ee5\u6b63\u5e38\u8fd0\u884c\u7684\u3002<\/p>\n
<?php\nabstract class AbstractClass\n{\n\/\/ \u6211\u4eec\u7684\u62bd\u8c61\u65b9\u6cd5\u4ec5\u9700\u8981\u5b9a\u4e49\u9700\u8981\u7684\u53c2\u6570\nabstract protected function prefixName($name);\n}\nclass ConcreteClass extends AbstractClass\n{\n\/\/ \u6211\u4eec\u7684\u5b50\u7c7b\u53ef\u4ee5\u5b9a\u4e49\u7236\u7c7b\u7b7e\u540d\u4e2d\u4e0d\u5b58\u5728\u7684\u53ef\u9009\u53c2\u6570\npublic function prefixName($name, $separator = \".\") {\nif ($name == \"Pacman\") {\n$prefix = \"Mr\";\n} elseif ($name == \"Pacwoman\") {\n$prefix = \"Mrs\";\n} else {\n$prefix = \"\";\n}\nreturn \"{$prefix}{$separator} {$name}\";\n}\n}\n$class = new ConcreteClass;\necho $class->prefixName(\"Pacman\"), \"n\";\necho $class->prefixName(\"Pacwoman\"), \"n\";\n?><\/code><\/pre>\n\u8f93\u51fa\u7ed3\u679c\u4e3a\uff1a<\/p>\n
Mr. Pacman<\/p>\n
Mrs. Pacwoman<\/p>\n
\u63a5\u53e3\u4e0e\u62bd\u8c61\u7c7b<\/h3>\n
- \n
- \u63a5\u53e3<\/li>\n<\/ol>\n
\uff081\uff09\u5bf9\u63a5\u53e3\u7684\u4f7f\u7528\u662f\u901a\u8fc7\u5173\u952e\u5b57 implements<\/p>\n
\uff082\uff09\u63a5\u53e3\u4e0d\u80fd\u5b9a\u4e49\u6210\u5458\u53d8\u91cf\uff08\u5305\u62ec\u7c7b\u9759\u6001\u53d8\u91cf\uff09\uff0c\u80fd\u5b9a\u4e49\u5e38\u91cf<\/p>\n
\uff083\uff09\u5b50\u7c7b\u5fc5\u987b\u5b9e\u73b0\u63a5\u53e3\u5b9a\u4e49\u7684\u6240\u6709\u65b9\u6cd5<\/p>\n
\uff084\uff09\u63a5\u53e3\u53ea\u80fd\u5b9a\u4e49\u4e0d\u80fd\u5b9e\u73b0\u8be5\u65b9\u6cd5<\/p>\n
\uff085\uff09\u63a5\u53e3\u6ca1\u6709\u6784\u9020\u51fd\u6570<\/p>\n
\uff086\uff09\u63a5\u53e3\u4e2d\u7684\u65b9\u6cd5\u548c\u5b9e\u73b0\u5b83\u7684\u7c7b\u9ed8\u8ba4\u90fd\u662f public \u7c7b\u578b\u7684<\/p>\n
- \n
- \u62bd\u8c61\u7c7b<\/li>\n<\/ol>\n
\uff081\uff09\u5bf9\u62bd\u8c61\u7c7b\u7684\u4f7f\u7528\u662f\u901a\u8fc7\u5173\u952e\u5b57 extends<\/p>\n
\uff082\uff09\u4e0d\u80fd\u88ab\u5b9e\u4f8b\u5316\uff0c\u53ef\u4ee5\u5b9a\u4e49\u5b50\u7c7b\u5fc5\u987b\u5b9e\u73b0\u7684\u65b9\u6cd5<\/p>\n
\uff083\uff09\u5b50\u7c7b\u5fc5\u987b\u5b9a\u4e49\u7236\u7c7b\u4e2d\u7684\u6240\u6709\u62bd\u8c61\u65b9\u6cd5\uff0c\u8fd9\u4e9b\u65b9\u6cd5\u7684\u8bbf\u95ee\u63a7\u5236\u5fc5\u987b\u548c\u7236\u7c7b\u4e2d<\/p>\n
\u4e00\u6837\uff08\u6216\u8005\u66f4\u4e3a\u5bbd\u677e\uff09<\/p>\n
\uff084\uff09\u5982\u4e00\u4e2a\u7c7b\u4e2d\u6709\u4e00\u4e2a\u62bd\u8c61\u65b9\u6cd5\uff0c\u5219\u8be5\u7c7b\u5fc5\u987b\u5b9a\u4e49\u4e3a\u62bd\u8c61\u7c7b<\/p>\n
\uff085\uff09\u62bd\u8c61\u7c7b\u53ef\u4ee5\u6709\u6784\u9020\u51fd\u6570<\/p>\n
\uff086\uff09\u62bd\u8c61\u7c7b\u4e2d\u7684\u65b9\u6cd5\u53ef\u4ee5\u4f7f\u7528 private,protected,public \u6765\u4fee\u9970\u3002<\/p>\n
\uff087\uff09\u4e00\u4e2a\u7c7b\u53ef\u4ee5\u540c\u65f6\u5b9e\u73b0\u591a\u4e2a\u63a5\u53e3\uff0c\u4f46\u4e00\u4e2a\u7c7b\u53ea\u80fd\u7ee7\u627f\u4e8e\u4e00\u4e2a\u62bd\u8c61\u7c7b\u3002<\/p>\n
Static \u5173\u952e\u5b57<\/h3>\n
\u58f0\u660e\u7c7b\u5c5e\u6027\u6216\u65b9\u6cd5\u4e3a static(\u9759\u6001)\uff0c\u5c31\u53ef\u4ee5\u4e0d\u5b9e\u4f8b\u5316\u7c7b\u800c\u76f4\u63a5\u8bbf\u95ee\u3002<\/p>\n
\u9759\u6001\u5c5e\u6027\u4e0d\u80fd\u901a\u8fc7\u4e00\u4e2a\u7c7b\u5df2\u5b9e\u4f8b\u5316\u7684\u5bf9\u8c61\u6765\u8bbf\u95ee\uff08\u4f46\u9759\u6001\u65b9\u6cd5\u53ef\u4ee5\uff09\u3002<\/p>\n
\u7531\u4e8e\u9759\u6001\u65b9\u6cd5\u4e0d\u9700\u8981\u901a\u8fc7\u5bf9\u8c61\u5373\u53ef\u8c03\u7528\uff0c\u6240\u4ee5\u4f2a\u53d8\u91cf $this \u5728\u9759\u6001\u65b9\u6cd5\u4e2d\u4e0d\u53ef\u7528\u3002<\/p>\n
\u9759\u6001\u5c5e\u6027\u4e0d\u53ef\u4ee5\u7531\u5bf9\u8c61\u901a\u8fc7 -> \u64cd\u4f5c\u7b26\u6765\u8bbf\u95ee\u3002<\/p>\n
\u81ea PHP 5.3.0 \u8d77\uff0c\u53ef\u4ee5\u7528\u4e00\u4e2a\u53d8\u91cf\u6765\u52a8\u6001\u8c03\u7528\u7c7b\u3002\u4f46\u8be5\u53d8\u91cf\u7684\u503c\u4e0d\u80fd\u4e3a\u5173\u952e\u5b57 self\uff0c<\/p>\n
parent \u6216 static\u3002<\/p>\n
<?php\nclass Foo {\npublic static $my_static = 'foo';\npublic function staticValue() {\nreturn self::$my_static;\n}\n}\nprint Foo::$my_static . PHP_EOL;\n$foo = new Foo();\nprint $foo->staticValue() . PHP_EOL;\n?><\/code><\/pre>\n\u6267\u884c\u4ee5\u4e0a\u7a0b\u5e8f\uff0c\u8f93\u51fa\u7ed3\u679c\u4e3a\uff1a<\/p>\n
foo<\/p>\n
Foo<\/p>\n
Final \u5173\u952e\u5b57<\/h3>\n
PHP 5 \u65b0\u589e\u4e86\u4e00\u4e2a final \u5173\u952e\u5b57\u3002\u5982\u679c\u7236\u7c7b\u4e2d\u7684\u65b9\u6cd5\u88ab\u58f0\u660e\u4e3a final\uff0c\u5219\u5b50\u7c7b\u65e0\u6cd5\u8986\u76d6\u8be5\u65b9\u6cd5\u3002\u5982\u679c\u4e00\u4e2a\u7c7b\u88ab\u58f0\u660e\u4e3a final\uff0c\u5219\u4e0d\u80fd\u88ab\u7ee7\u627f\u3002<\/p>\n
\u4ee5\u4e0b\u4ee3\u7801\u6267\u884c\u4f1a\u62a5\u9519\uff1a<\/p>\n
<?php\nclass BaseClass {\npublic function test() {\necho \"BaseClass::test() called\" . PHP_EOL;\n}\nfinal public function moreTesting() {\necho \"BaseClass::moreTesting() called\" . PHP_EOL;\n}\n}\nclass ChildClass extends BaseClass {\npublic function moreTesting() {\necho \"ChildClass::moreTesting() called\" . PHP_EOL;\n}\n}<\/code><\/pre>\n\/\/ \u62a5\u9519\u4fe1\u606f Fatal error: Cannot override final method BaseClass::moreTesting()<\/p>\n
?><\/p>\n
\u8c03\u7528\u7236\u7c7b\u6784\u9020\u65b9\u6cd5<\/p>\n
PHP \u4e0d\u4f1a\u5728\u5b50\u7c7b\u7684\u6784\u9020\u65b9\u6cd5\u4e2d\u81ea\u52a8\u7684\u8c03\u7528\u7236\u7c7b\u7684\u6784\u9020\u65b9\u6cd5\u3002\u8981\u6267\u884c\u7236\u7c7b\u7684\u6784\u9020\u65b9\u6cd5\uff0c\u9700\u8981\u5728\u5b50\u7c7b\u7684\u6784\u9020\u65b9\u6cd5\u4e2d\u8c03\u7528 parent::__construct() \u3002<\/p>\n
<?php\nclass BaseClass {\nfunction __construct() {\nprint \"BaseClass \u7c7b\u4e2d\u6784\u9020\u65b9\u6cd5\" . PHP_EOL;\n}\n}\nclass SubClass extends BaseClass {\nfunction __construct() {\nparent::__construct(); \/\/ \u5b50\u7c7b\u6784\u9020\u65b9\u6cd5\u4e0d\u80fd\u81ea\u52a8\u8c03\u7528\u7236\u7c7b\u7684\u6784\u9020\u65b9\u6cd5\nprint \"SubClass \u7c7b\u4e2d\u6784\u9020\u65b9\u6cd5\" . PHP_EOL;\n}\n}\nclass OtherSubClass extends BaseClass {\n\/\/ \u7ee7\u627f BaseClass \u7684\u6784\u9020\u65b9\u6cd5\n}\n\/\/ \u8c03\u7528 BaseClass \u6784\u9020\u65b9\u6cd5\n$obj = new BaseClass();\n\/\/ \u8c03\u7528 BaseClass\u3001SubClass \u6784\u9020\u65b9\u6cd5\n$obj = new SubClass();\n\/\/ \u8c03\u7528 BaseClass \u6784\u9020\u65b9\u6cd5\n$obj = new OtherSubClass();\n?><\/code><\/pre>\n\u6267\u884c\u4ee5\u4e0a\u7a0b\u5e8f\uff0c\u8f93\u51fa\u7ed3\u679c\u4e3a\uff1a<\/p>\n
BaseClass \u7c7b\u4e2d\u6784\u9020\u65b9\u6cd5<\/p>\n
BaseClass \u7c7b\u4e2d\u6784\u9020\u65b9\u6cd5<\/p>\n
SubClass \u7c7b\u4e2d\u6784\u9020\u65b9\u6cd5<\/p>\n
BaseClass \u7c7b\u4e2d\u6784\u9020\u65b9\u6cd5<\/p>\n
PHP \u8d85\u7ea7\u5168\u5c40\u53d8\u91cf<\/h1>\n
PHP \u8d85\u7ea7\u5168\u5c40\u53d8\u91cf\u5217\u8868\uff1a<\/p>\n
$GLOBALS \u4e00\u4e2a\u5305\u542b\u4e86\u5168\u90e8\u53d8\u91cf\u7684\u5168\u5c40\u7ec4\u5408\u6570\u7ec4\u3002\u53d8\u91cf\u7684\u540d\u5b57\u5c31\u662f\u6570\u7ec4\u7684\u952e\u3002<\/p>\n
$_SERVER \u4e00\u4e2a\u5305\u542b\u4e86\u8bf8\u5982\u5934\u4fe1\u606f(header)\u3001\u8def\u5f84(path)\u3001\u4ee5\u53ca\u811a\u672c\u4f4d\u7f6e(script locations)\u7b49\u7b49\u4fe1\u606f\u7684\u6570\u7ec4<\/p>\n
$_REQUEST \u7528\u4e8e\u6536\u96c6 HTML \u8868\u5355\u63d0\u4ea4\u7684\u6570\u636e\u3002\u5b83\u53ef\u4ee5\u83b7\u53d6 cookie get post<\/p>\n
$_POST \u5e7f\u6cdb\u5e94\u7528\u4e8e\u6536\u96c6\u8868\u5355\u6570\u636e\uff0c\u5728 HTML form \u6807\u7b7e\u7684\u6307\u5b9a\u8be5\u5c5e\u6027\uff1a"method="post"\u3002<\/p>\n
$_GET \u5e7f\u6cdb\u5e94\u7528\u4e8e\u6536\u96c6\u8868\u5355\u6570\u636e\uff0c\u5728 HTML form \u6807\u7b7e\u7684\u6307\u5b9a\u8be5\u5c5e\u6027\uff1a"method="get"\u3002<\/p>\n
Array [ ]<\/p>\n
$_FILES<\/p>\n
$_ENV<\/p>\n
$_COOKIE<\/p>\n
$_SESSION<\/p>\n
<?php\n\/\/ php \u9884\u5b9a\u4e49\u65b9\u6cd5\necho \"n\", $GLOBALS['y'];\necho \"n\", $_SERVER['PHP_SELF'];\necho \"n\", $_SERVER['SERVER_NAME'];\necho \"n\", $_SERVER['HTTP_HOST'];\n?><\/code><\/pre>\nPHP Include \u6587\u4ef6<\/h1>\n
\u670d\u52a1\u5668\u7aef\u5305\u542b (SSI) \u7528\u4e8e\u521b\u5efa\u53ef\u5728\u591a\u4e2a\u9875\u9762\u91cd\u590d\u4f7f\u7528\u7684\u51fd\u6570\u3001\u9875\u7709\u3001\u9875\u811a\u6216\u5143\u7d20\u3002<\/p>\n
include \uff08\u6216 require\uff09\u8bed\u53e5\u4f1a\u83b7\u53d6\u6307\u5b9a\u6587\u4ef6\u4e2d\u5b58\u5728\u7684\u6240\u6709\u6587\u672c\/\u4ee3\u7801\/\u6807\u8bb0\uff0c\u5e76\u590d\u5236\u5230\u4f7f\u7528 include \u8bed\u53e5\u7684\u6587\u4ef6\u4e2d\u3002<\/p>\n
\u5305\u542b\u6587\u4ef6\u5f88\u6709\u7528\uff0c\u5982\u679c\u60a8\u9700\u8981\u5728\u7f51\u7ad9\u7684\u591a\u5f20\u9875\u9762\u4e0a\u5f15\u7528\u76f8\u540c\u7684 PHP\u3001HTML \u6216\u6587\u672c\u7684\u8bdd\u3002<\/p>\n
PHP include \u548c require \u8bed\u53e5<\/p>\n
\u901a\u8fc7 include \u6216 require \u8bed\u53e5\uff0c\u53ef\u4ee5\u5c06 PHP \u6587\u4ef6\u7684\u5185\u5bb9\u63d2\u5165\u53e6\u4e00\u4e2a PHP \u6587\u4ef6\uff08\u5728\u670d\u52a1\u5668\u6267\u884c\u5b83\u4e4b\u524d\uff09\u3002<\/p>\n
include \u548c require \u8bed\u53e5\u662f\u76f8\u540c\u7684\uff0c\u9664\u4e86\u9519\u8bef\u5904\u7406\u65b9\u9762\uff1a<\/p>\n
require \u4f1a\u751f\u6210\u81f4\u547d\u9519\u8bef\uff08E_COMPILE_ERROR\uff09\u5e76\u505c\u6b62\u811a\u672c<\/p>\n
include \u53ea\u751f\u6210\u8b66\u544a\uff08E_WARNING\uff09\uff0c\u5e76\u4e14\u811a\u672c\u4f1a\u7ee7\u7eed<\/p>\n
\u56e0\u6b64\uff0c\u5982\u679c\u60a8\u5e0c\u671b\u7ee7\u7eed\u6267\u884c\uff0c\u5e76\u5411\u7528\u6237\u8f93\u51fa\u7ed3\u679c\uff0c\u5373\u4f7f\u5305\u542b\u6587\u4ef6\u5df2\u4e22\u5931\uff0c\u90a3\u4e48\u8bf7\u4f7f\u7528 include\u3002\u5426\u5219\uff0c\u5728\u6846\u67b6\u3001CMS \u6216\u8005\u590d\u6742\u7684 PHP \u5e94\u7528\u7a0b\u5e8f\u7f16\u7a0b\u4e2d\uff0c\u8bf7\u59cb\u4f7f\u7528 require \u5411\u6267\u884c\u6d41\u5f15\u7528\u5173\u952e\u6587\u4ef6\u3002\u8fd9\u6709\u52a9\u4e8e\u63d0\u9ad8\u5e94\u7528\u7a0b\u5e8f\u7684\u5b89\u5168\u6027\u548c\u5b8c\u6574\u6027\uff0c\u5728\u67d0\u4e2a\u5173\u952e\u6587\u4ef6\u610f\u5916\u4e22\u5931\u7684\u60c5\u51b5\u4e0b\u3002\u5305\u542b\u6587\u4ef6\u7701\u53bb\u4e86\u5927\u91cf\u7684\u5de5\u4f5c\u3002\u8fd9\u610f\u5473\u7740\u60a8\u53ef\u4ee5\u4e3a\u6240\u6709\u9875\u9762\u521b\u5efa\u6807\u51c6\u9875\u5934\u3001\u9875\u811a\u6216\u8005\u83dc\u5355\u6587\u4ef6\u3002\u7136\u540e\uff0c\u5728\u9875\u5934\u9700\u8981\u66f4\u65b0\u65f6\uff0c\u60a8\u53ea\u9700\u66f4\u65b0\u8fd9\u4e2a\u9875\u5934\u5305\u542b\u6587\u4ef6\u5373\u53ef\u3002<\/p>\n
\u8bed\u6cd5<\/p>\n
include ‘filename’;<\/p>\n
\u6216<\/p>\n
require ‘filename’;<\/p>\n
PHP \u6587\u4ef6\u5904\u7406<\/h1>\n
PHP \u64cd\u4f5c\u6587\u4ef6<\/h2>\n
PHP \u62e5\u6709\u7684\u591a\u79cd\u51fd\u6570\u53ef\u4f9b\u521b\u5efa\u3001\u8bfb\u53d6\u3001\u4e0a\u4f20\u4ee5\u53ca\u7f16\u8f91\u6587\u4ef6\u3002<\/p>\n
\u6ce8\u610f\uff1a\u8bf7\u8c28\u614e\u64cd\u4f5c\u6587\u4ef6\uff01<\/p>\n
\u5f53\u60a8\u64cd\u4f5c\u6587\u4ef6\u65f6\u5fc5\u987b\u975e\u5e38\u5c0f\u5fc3\u3002\u5982\u679c\u60a8\u64cd\u4f5c\u5931\u8bef\uff0c\u53ef\u80fd\u4f1a\u9020\u6210\u975e\u5e38\u4e25\u91cd\u7684\u7834\u574f\u3002<\/p>\n
\u5e38\u89c1\u7684\u9519\u8bef\u662f\uff1a<\/p>\n
\u7f16\u8f91\u9519\u8bef\u7684\u6587\u4ef6<\/p>\n
\u88ab\u5783\u573e\u6570\u636e\u586b\u6ee1\u786c\u76d8<\/p>\n
\u610f\u5916\u5220\u9664\u6587\u4ef6\u5185\u5bb9<\/p>\n
PHP readfile() \u51fd\u6570<\/p>\n
readfile() \u51fd\u6570\u8bfb\u53d6\u6587\u4ef6\uff0c\u5e76\u628a\u5b83\u5199\u5165\u8f93\u51fa\u7f13\u51b2\u3002<\/p>\n
\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u540d\u4e3a "webdictionary.txt" \u7684\u6587\u672c\u6587\u4ef6\uff0c\u5b58\u653e\u5728\u670d\u52a1\u5668\u4e0a\uff0c\u5c31\u50cf\u8fd9<\/p>\n
\u6837\uff1a<\/p>\n
AJAX = Asynchronous JavaScript and XML<\/p>\n
CSS = Cascading Style Sheets<\/p>\n
HTML = Hyper Text Markup Language<\/p>\n
PHP = PHP Hypertext Preprocessor<\/p>\n
SQL = Structured Query Language<\/p>\n
SVG = Scalable Vector Graphics<\/p>\n
XML = EXtensible Markup Language<\/p>\n
\u8bfb\u53d6\u6b64\u6587\u4ef6\u5e76\u5199\u5230\u8f93\u51fa\u6d41\u7684 PHP \u4ee3\u7801\u5982\u4e0b\uff08\u5982\u8bfb\u53d6\u6210\u529f\u5219 readfile() \u51fd\u6570\u8fd4\u56de<\/p>\n
\u5b57\u8282\u6570\uff09\uff1a<\/p>\n
<?php\necho readfile(\"webdictionary.txt\");\n?><\/code><\/pre>\nPHP \u6587\u4ef6\u6253\u5f00\/\u8bfb\u53d6\/\u5173\u95ed<\/h2>\n
\u5982\u4f55\u5728\u670d\u52a1\u5668\u4e0a\u6253\u5f00\u3001\u8bfb\u53d6\u4ee5\u53ca\u5173\u95ed\u6587\u4ef6\u3002<\/p>\n
PHP Open File – fopen()<\/p>\n
\u6253\u5f00\u6587\u4ef6\u7684\u66f4\u597d\u7684\u65b9\u6cd5\u662f\u901a\u8fc7 fopen() \u51fd\u6570\u3002\u6b64\u51fd\u6570\u4e3a\u60a8\u63d0\u4f9b\u6bd4 readfile() \u51fd\u6570<\/p>\n
\u66f4\u591a\u7684\u9009\u9879\u3002<\/p>\n
\u5728\u8bfe\u7a0b\u4e2d\uff0c\u6211\u4eec\u5c06\u4f7f\u7528\u6587\u672c\u6587\u4ef6 "webdictionary.txt"\uff1a<\/p>\n
AJAX = Asynchronous JavaScript and XML<\/p>\n
CSS = Cascading Style Sheets<\/p>\n
HTML = Hyper Text Markup Language<\/p>\n
PHP = PHP Hypertext Preprocessor<\/p>\n
SQL = Structured Query Language<\/p>\n
SVG = Scalable Vector Graphics<\/p>\n
XML = EXtensible Markup Language<\/p>\n
fopen() \u7684\u7b2c\u4e00\u4e2a\u53c2\u6570\u5305\u542b\u88ab\u6253\u5f00\u7684\u6587\u4ef6\u540d\uff0c\u7b2c\u4e8c\u4e2a\u53c2\u6570\u89c4\u5b9a\u6253\u5f00\u6587\u4ef6\u7684\u6a21\u5f0f\u3002<\/p>\n
\u5982\u679c fopen() \u51fd\u6570\u672a\u80fd\u6253\u5f00\u6307\u5b9a\u7684\u6587\u4ef6\uff0c\u4e0b\u9762\u7684\u4f8b\u5b50\u4f1a\u751f\u6210\u4e00\u6bb5\u6d88\u606f\uff1a<\/p>\n
\u5b9e\u4f8b<\/p>\n
<?php\n$myfile = fopen(\"webdictionary.txt\", \"r\") or die(\"Unable to open file!\");\necho fread($myfile,filesize(\"webdictionary.txt\"));\nfclose($myfile);\n?><\/code><\/pre>\n\u63d0\u793a\uff1a\u6211\u4eec\u63a5\u4e0b\u6765\u5c06\u5b66\u4e60 fread() \u4ee5\u53ca fclose() \u51fd\u6570\u3002<\/p>\n
\u6587\u4ef6\u4f1a\u4ee5\u5982\u4e0b\u6a21\u5f0f\u4e4b\u4e00\u6253\u5f00\uff1a<\/p>\n
<\/p>\nPHP \u8bfb\u53d6\u6587\u4ef6 – fread()<\/h3>\n
fread() \u51fd\u6570\u8bfb\u53d6\u6253\u5f00\u7684\u6587\u4ef6\u3002<\/p>\n
fread() \u7684\u7b2c\u4e00\u4e2a\u53c2\u6570\u5305\u542b\u5f85\u8bfb\u53d6\u6587\u4ef6\u7684\u6587\u4ef6\u540d\uff0c\u7b2c\u4e8c\u4e2a\u53c2\u6570\u89c4\u5b9a\u5f85\u8bfb\u53d6\u7684\u6700\u5927\u5b57\u8282\u6570\u3002<\/p>\n
\u5982\u4e0b PHP \u4ee3\u7801\u628a "webdictionary.txt" \u6587\u4ef6\u8bfb\u81f3\u7ed3\u5c3e\uff1a<\/p>\n
fread($myfile,filesize("webdictionary.txt"));<\/p>\n
PHP \u5173\u95ed\u6587\u4ef6 – fclose()<\/p>\n
fclose() \u51fd\u6570\u7528\u4e8e\u5173\u95ed\u6253\u5f00\u7684\u6587\u4ef6\u3002<\/p>\n
\u6ce8\u91ca\uff1a\u7528\u5b8c\u6587\u4ef6\u540e\u628a\u5b83\u4eec\u5168\u90e8\u5173\u95ed\u662f\u4e00\u4e2a\u826f\u597d\u7684\u7f16\u7a0b\u4e60\u60ef\u3002\u60a8\u5e76\u4e0d\u60f3\u6253\u5f00\u7684\u6587\u4ef6\u5360\u7528\u60a8\u7684\u670d\u52a1\u5668\u8d44\u6e90\u3002<\/p>\n
fclose() \u9700\u8981\u5f85\u5173\u95ed\u6587\u4ef6\u7684\u540d\u79f0\uff08\u6216\u8005\u5b58\u6709\u6587\u4ef6\u540d\u7684\u53d8\u91cf\uff09\uff1a<\/p>\n
<?php\n$myfile = fopen(\"webdictionary.txt\", \"r\");\n\/\/ some code to be executed....\nfclose($myfile);\n?><\/code><\/pre>\nPHP \u8bfb\u53d6\u5355\u884c\u6587\u4ef6 – fgets()<\/p>\n
fgets() \u51fd\u6570\u7528\u4e8e\u4ece\u6587\u4ef6\u8bfb\u53d6\u5355\u884c\u3002<\/p>\n
\u4e0b\u4f8b\u8f93\u51fa "webdictionary.txt" \u6587\u4ef6\u7684\u9996\u884c\uff1a<\/p>\n
\u5b9e\u4f8b<\/p>\n
<?php\n$myfile = fopen(\"webdictionary.txt\", \"r\") or die(\"Unable to open file!\");\necho fgets($myfile);\nfclose($myfile);\n?><\/code><\/pre>\n\u8fd0\u884c\u5b9e\u4f8b<\/p>\n
\u6ce8\u91ca\uff1a\u8c03\u7528 fgets() \u51fd\u6570\u4e4b\u540e\uff0c\u6587\u4ef6\u6307\u9488\u4f1a\u79fb\u52a8\u5230\u4e0b\u4e00\u884c\u3002<\/p>\n
PHP \u68c0\u67e5 End-Of-File – feof()<\/p>\n
feof() \u51fd\u6570\u68c0\u67e5\u662f\u5426\u5df2\u5230\u8fbe "end-of-file" (EOF)\u3002<\/p>\n
feof() \u5bf9\u4e8e\u904d\u5386\u672a\u77e5\u957f\u5ea6\u7684\u6570\u636e\u5f88\u6709\u7528\u3002<\/p>\n
feof() \u51fd\u6570\u68c0\u67e5\u662f\u5426\u5df2\u5230\u8fbe\u6587\u4ef6\u672b\u5c3e(EOF)<\/p>\n
\u4e0b\u4f8b\u9010\u884c\u8bfb\u53d6 "webdictionary.txt" \u6587\u4ef6\uff0c\u76f4\u5230 end-of-file\uff1a<\/p>\n
\u5b9e\u4f8b<\/p>\n
<?php\n$myfile = fopen(\"webdictionary.txt\", \"r\") or die(\"Unable to open file!\");\n\/\/ \u8f93\u51fa\u5355\u884c\u76f4\u5230 end-of-file\nwhile(!feof($myfile)) {\necho fgets($myfile) . \"<br>\";\n}\nfclose($myfile);\n?><\/code><\/pre>\n\u8fd0\u884c\u5b9e\u4f8b<\/p>\n
PHP \u8bfb\u53d6\u5355\u5b57\u7b26 – fgetc()<\/p>\n
fgetc() \u51fd\u6570\u7528\u4e8e\u4ece\u6587\u4ef6\u4e2d\u8bfb\u53d6\u5355\u4e2a\u5b57\u7b26\u3002<\/p>\n
\u4e0b\u4f8b\u9010\u5b57\u7b26\u8bfb\u53d6 "webdictionary.txt" \u6587\u4ef6\uff0c\u76f4\u5230 end-of-file\uff1a<\/p>\n
\u5b9e\u4f8b<\/p>\n
<?php\n$myfile = fopen(\"webdictionary.txt\", \"r\") or die(\"Unable to open file!\");\n\/\/ \u8f93\u51fa\u5355\u5b57\u7b26\u76f4\u5230 end-of-file\nwhile(!feof($myfile)) {\necho fgetc($myfile);\n}\nfclose($myfile);\n?><\/code><\/pre>\n\u8fd0\u884c\u5b9e\u4f8b<\/p>\n
\u6ce8\u91ca\uff1a\u5728\u8c03\u7528 fgetc() \u51fd\u6570\u4e4b\u540e\uff0c\u6587\u4ef6\u6307\u9488\u4f1a\u79fb\u52a8\u5230\u4e0b\u4e00\u4e2a\u5b57\u7b26\u3002<\/p>\n
\u5728\u672c\u8282\u4e2d\uff0c\u6211\u4eec\u5c06\u4e3a\u60a8\u8bb2\u89e3\u5982\u4f55\u5728\u670d\u52a1\u5668\u4e0a\u521b\u5efa\u5e76\u5199\u5165\u6587\u4ef6\u3002<\/p>\n
PHP \u521b\u5efa\u6587\u4ef6 – fopen()<\/h3>\n
fopen() \u51fd\u6570\u4e5f\u7528\u4e8e\u521b\u5efa\u6587\u4ef6\u3002\u4e5f\u8bb8\u6709\u70b9\u6df7\u4e71\uff0c\u4f46\u662f\u5728 PHP \u4e2d\uff0c\u521b\u5efa\u6587\u4ef6\u6240\u7528\u7684\u51fd\u6570\u4e0e\u6253\u5f00\u6587\u4ef6\u7684\u76f8\u540c\u3002<\/p>\n
\u5982\u679c\u60a8\u7528 fopen() \u6253\u5f00\u5e76\u4e0d\u5b58\u5728\u7684\u6587\u4ef6\uff0c\u6b64\u51fd\u6570\u4f1a\u521b\u5efa\u6587\u4ef6\uff0c\u5047\u5b9a\u6587\u4ef6\u88ab\u6253\u5f00\u4e3a\u5199\u5165\uff08w\uff09\u6216\u589e\u52a0\uff08a\uff09\u3002<\/p>\n
\u4e0b\u9762\u7684\u4f8b\u5b50\u521b\u5efa\u540d\u4e3a "testfile.txt" \u7684\u65b0\u6587\u4ef6\u3002\u6b64\u6587\u4ef6\u5c06\u88ab\u521b\u5efa\u4e8e PHP \u4ee3\u7801\u6240\u5728\u7684\u76f8\u540c\u76ee\u5f55\u4e2d\uff1a<\/p>\n
\u5b9e\u4f8b<\/p>\n
$myfile = fopen("testfile.txt", "w")<\/p>\n
PHP \u6587\u4ef6\u6743\u9650<\/p>\n
\u5982\u679c\u60a8\u8bd5\u56fe\u8fd0\u884c\u8fd9\u6bb5\u4ee3\u7801\u65f6\u53d1\u751f\u9519\u8bef\uff0c\u8bf7\u68c0\u67e5\u60a8\u662f\u5426\u6709\u5411\u786c\u76d8\u5199\u5165\u4fe1\u606f\u7684 PHP\u6587\u4ef6\u8bbf\u95ee\u6743\u9650\u3002<\/p>\n
PHP \u5199\u5165\u6587\u4ef6 – fwrite()<\/h3>\n
fwrite() \u51fd\u6570\u7528\u4e8e\u5199\u5165\u6587\u4ef6\u3002<\/p>\n
fwrite() \u7684\u7b2c\u4e00\u4e2a\u53c2\u6570\u5305\u542b\u8981\u5199\u5165\u7684\u6587\u4ef6\u7684\u6587\u4ef6\u540d\uff0c\u7b2c\u4e8c\u4e2a\u53c2\u6570\u662f\u88ab\u5199\u7684\u5b57\u7b26\u4e32\u3002<\/p>\n
\u4e0b\u9762\u7684\u4f8b\u5b50\u628a\u59d3\u540d\u5199\u5165\u540d\u4e3a "newfile.txt" \u7684\u65b0\u6587\u4ef6\u4e2d\uff1a<\/p>\n
\u5b9e\u4f8b<\/p>\n
<?php\n$myfile = fopen(\"newfile.txt\", \"w\") or die(\"Unable to open file!\");\n$txt = \"Bill Gatesn\";\nfwrite($myfile, $txt);\n$txt = \"Steve Jobsn\";\nfwrite($myfile, $txt);\nfclose($myfile);\n?><\/code><\/pre>\n\u8bf7\u6ce8\u610f\uff0c\u6211\u4eec\u5411\u6587\u4ef6 "newfile.txt" \u5199\u4e86\u4e24\u6b21\u3002\u5728\u6bcf\u6b21\u6211\u4eec\u5411\u6587\u4ef6\u5199\u5165\u65f6\uff0c\u5728\u6211\u4eec\u53d1\u9001\u7684\u5b57\u7b26\u4e32 $txt \u4e2d\uff0c\u7b2c\u4e00\u6b21\u5305\u542b "Bill Gates"\uff0c\u7b2c\u4e8c\u6b21\u5305\u542b "Steve Jobs"\u3002\u5728\u5199\u5165\u5b8c\u6210\u540e\uff0c\u6211\u4eec\u4f7f\u7528 fclose() \u51fd\u6570\u6765\u5173\u95ed\u6587\u4ef6\u3002<\/p>\n
\u5982\u679c\u6211\u4eec\u6253\u5f00 "newfile.txt" \u6587\u4ef6\uff0c\u5b83\u5e94\u8be5\u662f\u8fd9\u6837\u7684\uff1a<\/p>\n
Bill Gates<\/p>\n
Steve Jobs<\/p>\n
PHP \u8986\u76d6\uff08Overwriting\uff09<\/p>\n
\u5982\u679c\u73b0\u5728 "newfile.txt" \u5305\u542b\u4e86\u4e00\u4e9b\u6570\u636e\uff0c\u6211\u4eec\u53ef\u4ee5\u5c55\u793a\u5728\u5199\u5165\u5df2\u6709\u6587\u4ef6\u65f6\u53d1\u751f\u7684\u7684\u4e8b\u60c5\u3002\u6240\u6709\u5df2\u5b58\u5728\u7684\u6570\u636e\u4f1a\u88ab\u64e6\u9664\u5e76\u4ee5\u4e00\u4e2a\u65b0\u6587\u4ef6\u5f00\u59cb\u3002\u5728\u4e0b\u9762\u7684\u4f8b\u5b50\u4e2d\uff0c\u6211\u4eec\u6253\u5f00\u4e00\u4e2a\u5df2\u5b58\u5728\u7684\u6587\u4ef6 "newfile.txt"\uff0c\u5e76\u5411\u5176\u4e2d\u5199\u5165\u4e86\u4e00\u4e9b\u65b0\u6570\u636e\uff1a<\/p>\n
\u5b9e\u4f8b<\/p>\n
<?php\n$myfile = fopen(\"newfile.txt\", \"w\") or die(\"Unable to open file!\");\n$txt = \"Mickey Mousen\";\nfwrite($myfile, $txt);\n$txt = \"Minnie Mousen\";\nfwrite($myfile, $txt);\nfclose($myfile);\n?><\/code><\/pre>\n\u5982\u679c\u73b0\u5728\u6211\u4eec\u6253\u5f00\u8fd9\u4e2a "newfile.txt" \u6587\u4ef6\uff0cBill \u548c Steve \u90fd\u5df2\u6d88\u5931\uff0c\u53ea\u5269\u4e0b\u6211\u4eec\u521a\u5199\u5165\u7684\u6570\u636e\uff1a<\/p>\n
Mickey Mouse<\/p>\n
Minnie Mouse<\/p>\n
\u6587\u4ef6\u7684 \u590d\u5236 \u5220\u9664 \u91cd\u540d<\/h2>\n
php \u6587\u4ef6\u91cd\u547d\u540d\uff1a\u51fd\u6570 rename()\u3002<\/p>\n
php \u6587\u4ef6\u590d\u5236\uff1a\u51fd\u6570 copy();<\/p>\n
php \u6587\u4ef6\u5220\u9664\uff1a\u51fd\u6570 unlink();<\/p>\n
\u6587\u4ef6\u7684\u5224\u65ad<\/h2>\n
file_exists() \u5224\u65ad\u6587\u4ef6\u662f\u5426\u5b58\u5728<\/p>\n
is_file() \u662f\u5426\u4e3a\u6587\u4ef6\u3002<\/p>\n
PHP \u83b7\u53d6\u6587\u4ef6\u5c5e\u6027<\/h1>\n
\u5f53\u6211\u4eec\u5728\u7a0b\u5e8f\u4e2d\u64cd\u4f5c\u6587\u4ef6\u65f6\uff0c\u53ef\u80fd\u4f1a\u4f7f\u7528\u5230\u6587\u4ef6\u7684\u4e00\u4e9b\u5e38\u89c1\u5c5e\u6027\uff0c\u6bd4\u5982\u6587\u4ef6\u7684\u5927\u5c0f\u3001\u7c7b\u578b\u3001\u4fee\u6539\u65f6\u95f4\u3001\u8bbf\u95ee\u65f6\u95f4\u4ee5\u53ca\u6743\u9650\u7b49\u7b49\u3002PHP \u4e2d\u63d0\u4f9b\u4e86\u975e\u5e38\u5168\u9762\u7684\u7528\u6765\u83b7\u53d6\u8fd9\u4e9b\u5c5e\u6027\u7684\u5185\u7f6e\u51fd\u6570\uff0c\u5982\u4e0b\u8868\u6240\u793a\u3002<\/p>\n
<\/p>\n<?php\n$file = 'test.txt';\nfile_exists($file) or die('\u6587\u4ef6\u4e0d\u5b58\u5728\uff0c\u7a0b\u5e8f\u9000\u51fa\uff01');\necho $file.' \u6587\u4ef6\u5927\u5c0f\u662f\uff1a'.filesize($file).' \u4e2a\u5b57\u8282<br>';\nif(is_readable($file)){\necho $file.' \u6587\u4ef6\u662f\u53ef\u8bfb\u7684\u3002<br>';\n}else{\necho $file.' \u6587\u4ef6\u662f\u4e0d\u53ef\u8bfb\u7684\u3002<br>';\n}\nif(is_writable($file)){\necho $file.' \u6587\u4ef6\u662f\u53ef\u5199\u7684\u3002<br>';\n}else{\necho $file.' \u6587\u4ef6\u662f\u4e0d\u53ef\u5199\u7684\u3002<br>';\n}\nif(is_executable($file)){\necho $file.' \u6587\u4ef6\u662f\u53ef\u6267\u884c\u7684\u3002<br>';\n}else{\necho $file.' \u6587\u4ef6\u662f\u4e0d\u53ef\u6267\u884c\u7684\u3002<br>';\n}\necho '\u6587\u4ef6\u7684\u521b\u5efa\u65f6\u95f4\u662f\uff1a'.date('Y-m-d H:i:s',filectime($file)).'\u3002\n<br>';\necho '\u6587\u4ef6\u7684\u4fee\u6539\u65f6\u95f4\u662f\uff1a'.date('Y-m-d H:i:s',filemtime($file)).'\u3002\n<br>';\necho '\u6587\u4ef6\u4e0a\u6b21\u7684\u8bbf\u95ee\u65f6\u95f4\u662f\uff1a'.date('Y-m-d\nH:i:s',fileatime($file)).'\u3002<br>';\n?><\/code><\/pre>\nPHP \u76ee\u5f55\u64cd\u4f5c<\/h1>\n
\u76ee\u5f55\u64cd\u4f5c<\/p>\n
\u65b0\u5efa\u76ee\u5f55\uff1amkdir(\u8def\u5f84\uff0c\u6743\u9650\uff0c\u9012\u5f52\u521b\u5efa)<\/p>\n
\u5220\u9664\u76ee\u5f55\uff1armdir()<\/p>\n
\u79fb\u52a8\uff08\u6539\u540d\uff09\uff1arename()<\/p>\n
\u83b7\u53d6\u76ee\u5f55\u5185\u5bb9\uff1a<\/p>\n
\/\/\u6253\u5f00\u76ee\u5f55<\/p>\n
\u76ee\u5f55\u53e5\u67c4 = opendir()<\/p>\n
\/\/\u8bfb\u53d6\u76ee\u5f55<\/p>\n
\u6587\u4ef6\u540d = readdir(\u76ee\u5f55\u53e5\u67c4)<\/p>\n
\u4f9d\u6b21\u8bfb\u53d6\u6587\u4ef6\u540d\uff0c\u540c\u65f6\u5411\u4e0b\u79fb\u52a8\u6587\u4ef6\u53e5\u67c4\u6307\u9488\uff0c\u8bfb\u53d6\u4e0d\u5230\u5219\u8fd4\u56de false<\/p>\n
\/\/\u5173\u95ed\u76ee\u5f55<\/p>\n
closedir()<\/p>\n
\u5f53\u524d\u76ee\u5f55. \u4e0a\u7ea7\u76ee\u5f55\u7528..<\/p>\n
\u9012\u5f52\u8bfb\u53d6\u76ee\u5f55\u5185\u5bb9\uff1a<\/p>\n
<?php\n\/\/\u9012\u5f52\u904d\u5386\u76ee\u5f55\n$dirfile=\"c:\/\";\nfunction tree($dirfile){\n$dir = opendir($dirfile);\nwhile (($file = readdir($dir)) !== false)\n{\nif(is_dir(\"$dirfile{$file}\") && ($file !=\".\") && ($file !=\"..\")){\nif(is_readable(\"$dirfile{$file}\")){\necho \"\u76ee\u5f55 $dirfile{$file} <\/br>\";\ntree(\"$dirfile{$file}\");\n}else{\necho \"\u76ee\u5f55 $dirfile{$file} \u4e0d\u53ef\u8bbf\u95ee<\/br>\";\n}\n}\nelse{\nif( ($file !=\".\") && ($file !=\"..\")){\necho \"\u6587\u4ef6 $dirfile\/{$file} <\/br>\";\n}\n}\n}\nclosedir($dir);\n}\ntree($dirfile);\n?><\/code><\/pre>\n\u547d\u540d\u7a7a\u95f4<\/h1>\n
PHP \u547d\u540d\u7a7a\u95f4\u53ef\u4ee5\u89e3\u51b3\u4ee5\u4e0b\u4e24\u7c7b\u95ee\u9898<\/p>\n
1.\u7528\u6237\u7f16\u5199\u7684\u4ee3\u7801\u4e0e PHP \u5185\u90e8\u7684\u7c7b\/\u51fd\u6570\/\u5e38\u91cf\u6216\u7b2c\u4e09\u65b9\u7c7b\/\u51fd\u6570\/\u5e38\u91cf\u4e4b\u95f4\u7684\u540d\u5b57\u51b2\u7a81\u3002<\/p>\n
2.\u4e3a\u5f88\u957f\u7684\u6807\u8bc6\u7b26\u540d\u79f0(\u901a\u5e38\u662f\u4e3a\u4e86\u7f13\u89e3\u7b2c\u4e00\u7c7b\u95ee\u9898\u800c\u5b9a\u4e49\u7684)\u521b\u5efa\u4e00\u4e2a\u522b\u540d\uff08\u6216\u7b80\u77ed\uff09\u7684\u540d\u79f0\uff0c\u4ee5\u63d0\u9ad8\u6e90\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u3002<\/p>\n
\u547d\u540d\u7a7a\u95f4\uff08\u53ef\u4ee5\u7406\u89e3\u4e3a\u521b\u5efa\u6587\u4ef6\u5939\uff09<\/p>\n
\u5b9a\u4e49\uff1a\u547d\u540d\u7a7a\u95f4 namespace\uff0c\u662f\u6307\u4eba\u4e3a\u7684\u5c06\u5185\u5b58\u8fdb\u884c\u5206\u9694\uff0c\u8ba9\u4e0d\u540c\u5185\u5b58\u533a\u57df\u7684\u540c\u540d\u7ed3\u6784\u5171\u5b58\uff0c\u4ece\u800c\u89e3\u51b3\u5728\u5927\u578b\u9879\u76ee\u4e2d\u53ef\u80fd\u51fa\u73b0\u7684\u91cd\u540d\u7ed3\u6784\u7684\u95ee\u9898<\/p>\n
\u8bed\u6cd5\uff1anamespace \u7a7a\u95f4\u540d<\/p>\n
\u4f5c\u7528\uff1a\u4e0d\u540c\u7684\u7a7a\u95f4\u53ef\u4ee5\u6709\u540c\u540d\u7684\u7ed3\u6784\uff0c\u5982\uff1a\u7c7b<\/p>\n
\u7a7a\u95f4\u5143\u7d20\uff1a\u51fd\u6570\uff0c\u5e38\u91cf\uff0c\u7c7b\uff0c\u4e0d\u5305\u62ec\u53d8\u91cf\uff01\uff01<\/p>\n
\u5b50\u7a7a\u95f4\uff08\u5b50\u6587\u4ef6\u5939\uff09<\/p>\n
\u5b9a\u4e49\uff1a\u547d\u540d\u7a7a\u95f4\u5185\u90e8\u518d\u5212\u5206\u4e00\u4e2a\u547d\u540d\u7a7a\u95f4\uff0c\u8ba9\u6bcf\u4e2a\u5c0f\u7a7a\u95f4\u72ec\u7acb\u8d77\u6765<\/p>\n
\u8bed\u6cd5:<\/p>\n
namespace \u7a7a\u95f4\u540d<\/p>\n
namespace \u7a7a\u95f4\u540d\u5b50\u7a7a\u95f4<\/p>\n
\u547d\u540d\u7a7a\u95f4\u8bbf\u95ee \uff08url\uff09<\/p>\n
\u975e\u9650\u5b9a\u540d\u79f0\u8bbf\u95ee\uff1a\u76f4\u63a5\u8bbf\u95ee\u7a7a\u95f4\u5143\u7d20\u7684\u540d\u5b57\uff08\u53ea\u8bbf\u95ee\u81ea\u5df1\u547d\u540d\u7a7a\u95f4\u7684\u5143\u7d20\uff09<\/p>\n
\u9650\u5b9a\u540d\u79f0\u8bbf\u95ee\uff1a\u4f7f\u7528\u81ea\u5df1\u5f53\u524d\u7684\u5b50\u7a7a\u95f4\u540d\u5b57+ + \u5143\u7d20\u540d\u5b57<\/p>\n
\u5b8c\u5168\u9650\u5b9a\u540d\u79f0\u8bbf\u95ee\uff1a + \u5168\u5c40\u7a7a\u95f4 + + \u5143\u7d20\u540d\u5b57<\/p>\n
\u6ce8\uff1a\u4efb\u4f55\u7a7a\u95f4\u5143\u7d20\u8bbf\u95ee\uff0c\u53ea\u9488\u5bf9\u51fd\u6570\uff0c\u7c7b\uff0c\u5e38\u91cf<\/p>\n
\u5168\u5c40\u7a7a\u95f4\uff08C \u76d8\uff09<\/p>\n
\u5982\u679c\u5b9a\u4e49\u4e86\u547d\u540d\u7a7a\u95f4\uff0c\u975e\u9650\u5b9a\u540d\u79f0\u7684\u5bfb\u627e\u7cfb\u7edf\u5e38\u91cf\u7684\u65b9\u5f0f\uff1a<\/p>\n
\u9996\u5148\uff1a\u5728\u81ea\u5df1\u7684\u7a7a\u95f4\u5185\u627e<\/p>\n
\u7136\u540e\uff1a\u5982\u679c\u627e\u4e0d\u5230\u5143\u7d20<\/p>\n
\u7cfb\u7edf\u5e38\u91cf–>\u8fdb\u5165\u5168\u5c40\u7a7a\u95f4\u5bfb\u627e<\/p>\n
\u7cfb\u7edf\u7c7b –> \u4e0d\u4f1a\u81ea\u52a8\u8fdb\u5165\u5168\u5c40\u7a7a\u95f4\u5bfb\u627e\uff0c\u800c\u662f\u4f1a\u62a5\u9519<\/p>\n
\u547d\u540d\u7a7a\u95f4\u7684\u5f15\u5165<\/p>\n
1.\u7a7a\u95f4\u5f15\u5165\u65b9\u5f0f\uff1ause \u5173\u952e\u5b57<\/p>\n
- \n
- \n
\u5f15\u5165\u7c7b\uff1ause \u7a7a\u95f4\u540d\u7c7b\u540d<\/p>\n<\/li>\n
- \n
\u5f15\u5165\u51fd\u6570\uff1ause function \u7a7a\u95f4\u540d\u51fd\u6570\u540d<\/p>\n<\/li>\n
- \n
\u5f15\u5165\u5e38\u91cf\uff1ause const \u7a7a\u95f4\u540d\u5e38\u91cf\u540d<\/p>\n<\/li>\n<\/ol>\n
2.\u5f53\u5f15\u5165\u5143\u7d20\u65f6\u91cd\u540d\uff0c\u901a\u8fc7 as \u6765\u8d77\u522b\u540d<\/p>\n
use \u7a7a\u95f4\u540d\u7c7b\u540d as \u522b\u540d<\/p>\n
3.\u5f15\u5165\u591a\u4e2a\u5143\u7d20<\/p>\n
use \u7a7a\u95f4\u540d{<\/p>\n
\u7c7b\u540d\uff0c<\/p>\n
function \u51fd\u6570\u540d\uff0c<\/p>\n
const \u5e38\u91cf<\/p>\n
}<\/p>\n
- \n
- \u5f15\u5165\u7a7a\u95f4<\/li>\n<\/ol>\n
use \u7a7a\u95f4\u540d<\/p>\n
\u6b63\u5219\u8868\u8fbe\u5f0f<\/h1>\n
\u6b63\u5219\u8868\u8fbe\u5f0f\u7b80\u4ecb<\/p>\n
\u6b63\u5219\u8868\u8fbe\u5f0f\u662f\u7528\u4e8e\u63cf\u8ff0\u5b57\u7b26\u6392\u5217\u548c\u5339\u914d\u6a21\u5f0f\u7684\u4e00\u79cd\u8bed\u6cd5\u89c4\u5219\u3002\u5b83\u4e3b\u8981\u7528\u4e8e\u5b57\u7b26\u4e32\u7684\u6a21\u5f0f\u5206\u5272\u3001\u5339\u914d\u3001\u67e5\u627e\u53ca\u66ff\u6362\u64cd\u4f5c\u3002\u5230\u76ee\u524d\u4e3a\u6b62\uff0c\u6211\u4eec\u524d\u9762\u6240\u7528\u8fc7\u7684\u7cbe\u786e\uff08\u6587\u672c\uff09\u5339\u914d\u4e5f\u662f\u4e00\u79cd\u6b63\u5219\u8868\u8fbe\u5f0f\u3002<\/p>\n
\u5728 PHP \u4e2d\uff0c\u6b63\u5219\u8868\u8fbe\u5f0f\u4e00\u822c\u662f\u7531\u6b63\u89c4\u5b57\u7b26\u548c\u4e00\u4e9b\u7279\u6b8a\u5b57\u7b26\uff08\u7c7b\u4f3c\u4e8e\u901a\u914d\u7b26\uff09\u8054\u5408\u6784\u6210\u7684\u4e00\u4e2a\u6587\u672c\u6a21\u5f0f\u7684\u7a0b\u5e8f\u6027\u63cf\u8ff0<\/p>\n
\u6b63\u5219\u8868\u8fbe\u5f0f\u8f83\u91cd\u8981\u548c\u8f83\u6709\u7528\u7684\u89d2\u8272\u662f\u9a8c\u8bc1\u7528\u6237\u6570\u636e\u7684\u6709\u6548\u6027\u68c0\u67e5\u3002PHP \u4e2d\uff0c\u6b63\u5219<\/p>\n
\u8868\u8fbe\u5f0f\u6709\u4e09\u4e2a\u4f5c\u7528\uff1a<\/p>\n
\u5339\u914d\uff0c\u4e5f\u5e38\u5e38\u7528\u4e8e\u4ece\u5b57\u7b26\u4e32\u4e2d\u6790\u53d6\u4fe1\u606f\u3002<\/p>\n
\u7528\u65b0\u6587\u672c\u4ee3\u66ff\u5339\u914d\u6587\u672c\u3002<\/p>\n
\u5c06\u4e00\u4e2a\u5b57\u7b26\u4e32\u62c6\u5206\u4e3a\u4e00\u7ec4\u66f4\u5c0f\u7684\u4fe1\u606f\u5757\u3002<\/p>\n
\u6b63\u5219\u8868\u8fbe\u5f0f\u7684\u57fa\u672c\u8bed\u6cd5<\/p>\n
PCRE \u5e93\u51fd\u6570\u4e2d\uff0c\u6b63\u5219\u5339\u914d\u6a21\u5f0f\u4f7f\u7528\u5206\u9694\u7b26\u4e0e\u5143\u5b57\u7b26\u7ec4\u6210\uff0c\u5206\u9694\u7b26\u53ef\u4ee5\u662f\u975e\u6570\u5b57\u3001\u975e\u53cd\u659c\u7ebf\u3001\u975e\u7a7a\u683c\u7684\u4efb\u610f\u5b57\u7b26\u3002\u7ecf\u5e38\u4f7f\u7528\u7684\u5206\u9694\u7b26\u662f\u6b63\u659c\u7ebf(\/)\u3001hash \u7b26\u53f7(#) \u4ee5\u53ca\u53d6\u53cd\u7b26\u53f7(~)\u5143\u5b57\u7b26\u662f\u7528\u4e8e\u6784\u9020\u89c4\u5219\u8868\u8fbe\u5f0f\u7684\u5177\u6709\u7279\u6b8a\u542b\u4e49\u7684\u5b57\u7b26\u3002\u5982\u679c\u8981\u5728\u6b63\u5219\u8868\u8fbe\u5f0f\u4e2d\u5305\u542b\u5143\u5b57\u7b26\u672c\u8eab\uff0c\u5fc5\u987b\u5728\u5176\u524d\u52a0\u4e0a\u201d\u201d\u8fdb\u884c\u8f6c\u4e49<\/p>\n
\u5f53\u7136\uff0c\u4e0b\u9762\u662f\u4e00\u4e2a\u8868\u683c\u5f62\u5f0f\u7684PHP\u6b63\u5219\u8868\u8fbe\u5f0f\u5143\u5b57\u7b26\u53ca\u5176\u8bf4\u660e\uff1a<\/p>\n
\n\n
\n \n\u5143\u5b57\u7b26<\/th>\n \u8bf4\u660e<\/th>\n<\/tr>\n<\/thead>\n \n .<\/code><\/td>\n\u5339\u914d\u9664\u4e86\u6362\u884c\u7b26\u4e4b\u5916\u7684\u4efb\u4f55\u5355\u4e2a\u5b57\u7b26\u3002<\/td>\n<\/tr>\n \n ^<\/code><\/td>\n\u5339\u914d\u5b57\u7b26\u4e32\u5f00\u59cb\u7684\u4f4d\u7f6e\u3002\u5982\u679c\u4f7f\u7528\u4e86 m<\/code>\u4fee\u9970\u7b26\uff08\u591a\u884c\u6a21\u5f0f\uff09\uff0c\u5b83\u4e5f\u5339\u914d\u6bcf\u884c\u7684\u5f00\u5934\u3002<\/td>\n<\/tr>\n\n $<\/code><\/td>\n\u5339\u914d\u5b57\u7b26\u4e32\u7ed3\u675f\u7684\u4f4d\u7f6e\u3002\u82e5\u4f7f\u7528 m<\/code>\u4fee\u9970\u7b26\uff0c\u5219\u4e5f\u5339\u914d\u6bcf\u884c\u7684\u672b\u5c3e\u3002<\/td>\n<\/tr>\n\n *<\/code><\/td>\n\u96f6\u6b21\u6216\u591a\u6b21\u5339\u914d\u524d\u9762\u7684\u5143\u7d20\u3002<\/td>\n<\/tr>\n \n +<\/code><\/td>\n\u4e00\u6b21\u6216\u591a\u6b21\u5339\u914d\u524d\u9762\u7684\u5143\u7d20\u3002<\/td>\n<\/tr>\n \n ?<\/code><\/td>\n\u96f6\u6b21\u6216\u4e00\u6b21\u5339\u914d\u524d\u9762\u7684\u5143\u7d20\u3002\u5f53\u7528\u4e8e\u91cf\u8bcd\u540e\u65f6\uff0c\u8868\u793a\u975e\u8d2a\u5a6a\u6a21\u5f0f\u3002<\/td>\n<\/tr>\n \n {n}<\/code><\/td>\n\u6070\u597d n \u6b21\u5339\u914d\u524d\u9762\u7684\u5143\u7d20\u3002<\/td>\n<\/tr>\n \n {n,}<\/code><\/td>\n\u81f3\u5c11 n \u6b21\u5339\u914d\u524d\u9762\u7684\u5143\u7d20\u3002<\/td>\n<\/tr>\n \n {n,m}<\/code><\/td>\n\u5339\u914d\u524d\u9762\u7684\u5143\u7d20\u81f3\u5c11 n \u6b21\u4f46\u4e0d\u8d85\u8fc7 m \u6b21\u3002<\/td>\n<\/tr>\n \n [abc]<\/code><\/td>\n\u5b57\u7b26\u96c6\uff0c\u5339\u914d\u65b9\u62ec\u53f7\u5185\u7684\u4efb\u610f\u4e00\u4e2a\u5b57\u7b26\u3002<\/td>\n<\/tr>\n \n [^abc]<\/code><\/td>\n\u53cd\u5411\u5b57\u7b26\u96c6\uff0c\u5339\u914d\u4e0d\u5728\u65b9\u62ec\u53f7\u5185\u7684\u4efb\u610f\u5b57\u7b26\u3002<\/td>\n<\/tr>\n \n |<\/code><\/td>\n<\/tr>\n\n ( )<\/code><\/td>\n\u5206\u7ec4\u6355\u83b7\uff0c\u5c06\u62ec\u53f7\u5185\u7684\u5185\u5bb9\u4f5c\u4e3a\u4e00\u4e2a\u6574\u4f53\u5904\u7406\uff0c\u5e76\u53ef\u7528\u4e8e\u540e\u9762\u5f15\u7528\u3002<\/td>\n<\/tr>\n \n d<\/code><\/td>\n
- \u5f15\u5165\u7a7a\u95f4<\/li>\n<\/ol>\n
- \n
- \u62bd\u8c61\u7c7b<\/li>\n<\/ol>\n
- \u63a5\u53e3<\/li>\n<\/ol>\n
- \n
![\"1745378344019-f740992a-f9be-480b-9413-2945113b5cab.png\"](\"https:\/\/cdn.picui.cn\/vip\/2025\/10\/24\/68faeac70d76a.png\")
<\/p>\n![\"1745379026679-cbf273c9-f564-4414-b60e-ba574b96027e.png\"](\"https:\/\/cdn.picui.cn\/vip\/2025\/10\/24\/68faeac9b64f4.png\")
<\/p>\n![\"1745379199167-fac96dc0-3719-4563-9dee-db209fa852c5.png\"](\"https:\/\/cdn.picui.cn\/vip\/2025\/10\/24\/68faeacc8509e.png\")
<\/p>\n