Online PHP editor | output for kWmBf

@ 2015-09-11T18:39:03Z

<?php

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();

Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: Fatal error: Uncaught Error: Class "Observer" not found in /in/kWmBf:3 Stack trace: #0 {main} thrown in /in/kWmBf on line 3
Process exited with code 255.
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33: Fatal error: Uncaught Error: Class 'Observer' not found in /in/kWmBf:3 Stack trace: #0 {main} thrown in /in/kWmBf on line 3
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33: Fatal error: Class 'Observer' not found in /in/kWmBf on line 3
Process exited with code 255.
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38: Fatal error: Class 'Observer' not found in /in/kWmBf on line 4
Process exited with code 255.

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