3v4l.org

run code in 300+ PHP versions simultaneously
<?php error_reporting(E_ALL); $f=function($var){ echo "the closure test $var\n"; }; class Bla { public $foo; public function __construct($f){ $this->foo = $f; } } $bla = new Bla($f); ($bla->foo)("someval");

preferences:
49.21 ms | 402 KiB | 5 Q