3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $f = function($s) { return $s*2; } $f(4);
Output for 5.4.20
Parse error: syntax error, unexpected '$f' (T_VARIABLE) in /in/DARVb on line 5
Process exited with code 255.
Output for 5.4.0 - 5.4.19
Parse error: syntax error, unexpected '$f' (T_VARIABLE) in /in/8j3mb on line 5
Process exited with code 255.
Output for 5.3.0 - 5.3.27
Parse error: syntax error, unexpected T_VARIABLE in /in/8j3mb on line 5
Process exited with code 255.