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<?php class A { protected function _a() { return 'waa?'; } } class B extends A{} $c = function() { return $this->_a(); }; $b = new B; $c = $c->bindTo($b); var_dump($c); $c();
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
object(Closure)#3 (1) { ["this"]=> object(B)#2 (0) { } } Fatal error: Uncaught Error: Call to protected method A::_a() from scope Closure in /in/qSfET:12 Stack trace: #0 /in/qSfET(17): Closure->{closure}() #1 {main} thrown in /in/qSfET on line 12
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, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
object(Closure)#3 (1) { ["this"]=> object(B)#2 (0) { } } Fatal error: Uncaught Error: Call to protected method A::_a() from context 'Closure' in /in/qSfET:12 Stack trace: #0 /in/qSfET(17): Closure->{closure}() #1 {main} thrown in /in/qSfET on line 12
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
object(Closure)#3 (1) { ["this"]=> object(B)#2 (0) { } } Fatal error: Call to protected method A::_a() from context 'Closure' in /in/qSfET on line 12
Process exited with code 255.

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