3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php array_walk([1,2,34], function($v) { return 1; });
Output for 5.4.0 - 5.4.28
Fatal error: Only variables can be passed by reference in /in/Vcvbd on line 2
Process exited with code 255.
Output for 5.3.0 - 5.3.28
Parse error: syntax error, unexpected '[', expecting ')' in /in/Vcvbd on line 2
Process exited with code 255.