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<?php function isUrl($text) { $regex = array(); $regex["url"] = '/((([A-Za-z]{3,9}:(?:\/\/)?)(?:[-;:&=\+\$,\w]+@)?[A-Za-z0-9.-]+|(?:www.|[-;:&=\+\$,\w]+@)[A-Za-z0-9.-]+)((?:\/[\+~%\/.\w-_]*)?\??(?:[-\+=&;%@.\w_]*)#?(?:[.\!\/\\w]*))?)/i'; $mat = array(); echo $regex["url"]; preg_match($regex["url"], $text, $mat); var_dump($mat); if ($mat[0]) { echo $mat[0]; } } isUrl("来戳这里!http://aaa.bb.cc sdfsafsdhttp://aa.bb.com");
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
/((([A-Za-z]{3,9}:(?:\/\/)?)(?:[-;:&=\+\$,\w]+@)?[A-Za-z0-9.-]+|(?:www.|[-;:&=\+\$,\w]+@)[A-Za-z0-9.-]+)((?:\/[\+~%\/.\w-_]*)?\??(?:[-\+=&;%@.\w_]*)#?(?:[.\!\/\w]*))?)/i Warning: preg_match(): Compilation failed: invalid range in character class at offset 119 in /in/rfoor on line 7 array(0) { } Warning: Undefined array key 0 in /in/rfoor on line 9
Output for 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
/((([A-Za-z]{3,9}:(?:\/\/)?)(?:[-;:&=\+\$,\w]+@)?[A-Za-z0-9.-]+|(?:www.|[-;:&=\+\$,\w]+@)[A-Za-z0-9.-]+)((?:\/[\+~%\/.\w-_]*)?\??(?:[-\+=&;%@.\w_]*)#?(?:[.\!\/\w]*))?)/i Warning: preg_match(): Compilation failed: invalid range in character class at offset 119 in /in/rfoor on line 7 array(0) { } Notice: Undefined offset: 0 in /in/rfoor on line 9
Output for 7.3.32 - 7.3.33
/((([A-Za-z]{3,9}:(?:\/\/)?)(?:[-;:&=\+\$,\w]+@)?[A-Za-z0-9.-]+|(?:www.|[-;:&=\+\$,\w]+@)[A-Za-z0-9.-]+)((?:\/[\+~%\/.\w-_]*)?\??(?:[-\+=&;%@.\w_]*)#?(?:[.\!\/\w]*))?)/i Warning: preg_match(): Compilation failed: invalid range in character class at offset 119 in /in/rfoor on line 7 array(0) { }
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33
/((([A-Za-z]{3,9}:(?:\/\/)?)(?:[-;:&=\+\$,\w]+@)?[A-Za-z0-9.-]+|(?:www.|[-;:&=\+\$,\w]+@)[A-Za-z0-9.-]+)((?:\/[\+~%\/.\w-_]*)?\??(?:[-\+=&;%@.\w_]*)#?(?:[.\!\/\w]*))?)/iarray(5) { [0]=> string(16) "http://aaa.bb.cc" [1]=> string(16) "http://aaa.bb.cc" [2]=> string(16) "http://aaa.bb.cc" [3]=> string(7) "http://" [4]=> string(0) "" } http://aaa.bb.cc

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