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run code in 150+ php & hhvm versions
Bugs & Features
<?php echo preg_replace_callback('/(_[a-z])/', function($a) { var_dump($a);}, 'rob_tr_yuui');
Output for 5.3.0 - 7.1.0
array(2) { [0]=> string(2) "_t" [1]=> string(2) "_t" } array(2) { [0]=> string(2) "_y" [1]=> string(2) "_y" } robruui
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/Yq6lJ on line 3
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_FUNCTION in /in/Yq6lJ on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/Yq6lJ on line 3
Process exited with code 255.