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<?php class a {} function foo() {} foreach (["substr", "foo"] as $fn) { $x = (new ReflectionFunction($fn))->getClosure(); $x->call(new a); Closure::bind($x, new a, "a"); } ?>
Output for 7.4.14 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Warning: Cannot rebind scope of closure created from function in /in/oHW7B on line 8 Warning: Cannot rebind scope of closure created from function in /in/oHW7B on line 9 Warning: Cannot rebind scope of closure created from function in /in/oHW7B on line 8 Warning: Cannot rebind scope of closure created from function in /in/oHW7B on line 9
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 - 7.4.13
Warning: Cannot rebind scope of closure created by ReflectionFunctionAbstract::getClosure() in /in/oHW7B on line 8 Warning: Cannot rebind scope of closure created by ReflectionFunctionAbstract::getClosure() in /in/oHW7B on line 9 Warning: Cannot rebind scope of closure created by ReflectionFunctionAbstract::getClosure() in /in/oHW7B on line 8 Warning: Cannot rebind scope of closure created by ReflectionFunctionAbstract::getClosure() in /in/oHW7B on line 9
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Fatal error: Call to undefined method Closure::call() in /in/oHW7B on line 8
Process exited with code 255.

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