3v4l.org

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(1) "r" [1]=> string(1) "r" } array(2) { [0]=> string(1) "o" [1]=> string(1) "o" } array(2) { [0]=> string(1) "b" [1]=> string(1) "b" } array(2) { [0]=> string(1) "t" [1]=> string(1) "t" } array(2) { [0]=> string(1) "r" [1]=> string(1) "r" } array(2) { [0]=> string(1) "y" [1]=> string(1) "y" } array(2) { [0]=> string(1) "u" [1]=> string(1) "u" } array(2) { [0]=> string(1) "u" [1]=> string(1) "u" } array(2) { [0]=> string(1) "i" [1]=> string(1) "i" } __
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/Ij4UI 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/Ij4UI on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/Ij4UI on line 3
Process exited with code 255.