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run code in 150+ php & hhvm versions
Bugs & Features
<?php $regex = <<<'REGEX' / _ (a) (*MARK:A_MARK) _ | _ (b) _ | _ (c) (*MARK:C_MARK) _ | _ (d) _ /x REGEX; var_dump(preg_match('/a(*MARK:A)b/', 'ab', $matches)); var_dump($matches);
Output for 5.6.7 - 7.1.0
int(1) array(2) { [0]=> string(2) "ab" ["MARK"]=> string(1) "A" }
Output for 5.3.4 - 5.5.35
int(1) array(1) { [0]=> string(2) "ab" }
Output for 5.3.0 - 5.3.3
Warning: preg_match(): Compilation failed: (*VERB) with an argument is not supported at offset 7 in /in/sR44g on line 11 bool(false) NULL
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_SL in /in/sR44g on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_SL in /in/sR44g on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/sR44g on line 2
Process exited with code 255.