3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $list = array("thing one", "thing two", "thing three"); echo implode(', ', array_walk($list, function($v, $k) { return $k + 1 . ". $v"; }));
Output for 5.3.0 - 5.6.28, 7.0.0 - 7.1.0
Warning: implode(): Invalid arguments passed in /in/NANJX on line 4
Output for hhvm-3.10.0 - 3.12.0
Warning: Invalid operand type was used: implode() expects a container as one of the arguments in /in/NANJX on line 4
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION in /in/NANJX on line 4
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/NANJX on line 4
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/NANJX on line 4
Process exited with code 255.