3v4l.org

run code in 300+ PHP versions simultaneously
<?php $b = 10; $f = function() use ($b) { return (function($b){ return $b; }) }; var_dump( $f(1)());
Output for 5.3.0 - 5.3.27, 5.4.0 - 5.4.22
Parse error: syntax error, unexpected '}' in /in/duW3O on line 3
Process exited with code 255.
preferences:
197.5 ms | 1395 KiB | 58 Q