3v4l.org

run code in 300+ PHP versions simultaneously
<?php function i(&$x) { return $x; } $foo = array(array( 'bar' => function($baz) { var_export($baz); return function() { echo 'hi'; }; } )); i($foo[0]['bar']('baz'))();

preferences:
43.66 ms | 402 KiB | 5 Q