3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = function($_, $_, $_) { return true; };
Output for 7.0.0 - 7.0.3
Fatal error: Redefinition of parameter $_ in /in/qjjkO on line 3
Process exited with code 255.
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28
preferences:
178.47 ms | 1395 KiB | 38 Q