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run code in 200+ php & hhvm versions
Bugs & Features
<?php class Observer { protected function callme() { } } class MyParent extends Observer { function createChild() { $this->callme(); // this is OK return new MyChild (function() { $this->callme(); }); } } class MyChild { private $gatewayFunction; public function __constructor (Closure $gatewayFunction) { $this->gatewayFunction = $gatewayFunction; } public function __destroy() { $this->gatewayFunction->__invoke(); } } $p = new MyParent(); $c = $p->createChild(); var_dump($c); $c->__destroy();
based on kWmBf
Output for 7.0.0 - 7.2.0
object(MyChild)#2 (1) { ["gatewayFunction":"MyChild":private]=> NULL } Fatal error: Uncaught Error: Call to a member function __invoke() on null in /in/LPUsJ:28 Stack trace: #0 /in/LPUsJ(35): MyChild->__destroy() #1 {main} thrown in /in/LPUsJ on line 28
Process exited with code 255.
Output for 5.6.7 - 5.6.28
object(MyChild)#2 (1) { ["gatewayFunction":"MyChild":private]=> NULL } Fatal error: Call to a member function __invoke() on null in /in/LPUsJ on line 28
Process exited with code 255.
Output for 5.3.17 - 5.5.35
object(MyChild)#2 (1) { ["gatewayFunction":"MyChild":private]=> NULL } Fatal error: Call to a member function __invoke() on a non-object in /in/LPUsJ on line 28
Process exited with code 255.