3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A{ public function __construct(){ $b = new B(); $a = $this; $b->a = function() use($a){ $a->x(); }; $b->callA(); } public function x(){ var_dump('a'); } } class B { public $a; public function callA(){ $this->$a(); } } $a = new A();
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined variable $a in /in/Zja8Q on line 18 Fatal error: Uncaught Error: Method name must be a string in /in/Zja8Q:18 Stack trace: #0 /in/Zja8Q(9): B->callA() #1 /in/Zja8Q(21): A->__construct() #2 {main} thrown in /in/Zja8Q on line 18
Process exited with code 255.

This tab shows result from various feature-branches currently under review by the php developers. Contact me to have additional branches featured.

Active branches

Archived branches

Once feature-branches are merged or declined, they are no longer available. Their functionality (when merged) can be viewed from the main output page

preferences:
52.39 ms | 401 KiB | 8 Q