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<?php class A { private function foo() { echo "I R private::A called in class ".get_class()."\n"; } public function rebind(Closure $fn) { //$fn = $this->getClosure(); $fn2 = $fn->call($this); $fn2(); } public function getClosure() { $fn = function() { $this->foo();}; return $fn; } } class B extends A { private function foo() { echo "I R private::B called in class ".get_class()."\n"; } public function getClosure() { $fn = function() { $this->foo();}; return $fn; } } $b = new B(); $fn = $b->getClosure(); $a = new A(); $a->rebind($fn);
Output for git.master, git.master_jit, rfc.property-hooks
I R private::A called in class A Fatal error: Uncaught Error: Value of type null is not callable in /in/FVmY0:15 Stack trace: #0 /in/FVmY0(47): A->rebind(Object(Closure)) #1 {main} thrown in /in/FVmY0 on line 15
Process exited with code 255.

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