3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php class C { public $x = 1; function __construct() { ++$this->x; } function __invoke() { return ++$this->x; } function __toString() { return (string) --$this->x; } } $obj = new C(); echo $obj;
based on 3QSad
Output for 5.6.0 - 5.6.30, hhvm-3.18.5 - 3.22.0, 7.0.0 - 7.3.0beta1
1