3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php class X { public $call; public function __construct() { $this->call = function () { echo "x"; }; } } $object = new X; ($object->call)();
based on vcA4J
Output for 7.0.0 - 7.2.0
x
Output for 5.3.20 - 5.6.28
Parse error: syntax error, unexpected '(' in /in/F90cl on line 13
Process exited with code 255.