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<?php class A { public $a; public function call(&$call) { $call->bindTo($this, $this); call_user_func($call); } } $a = new A; $a->a = 'Foo'; $a->call(function () { echo $this->a; } );
Output for git.master, git.master_jit, rfc.property-hooks
Fatal error: Uncaught Error: A::call(): Argument #1 ($call) cannot be passed by reference in /in/Vhnr7:15 Stack trace: #0 {main} thrown in /in/Vhnr7 on line 15
Process exited with code 255.

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