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<?php class A {} class B extends A { function foo() { echo static::class, ' in ', self::class, PHP_EOL; } } $obj = new B; $obj->foo(); $closure = (new ReflectionMethod('B', 'foo'))->getClosure()->bindTo($obj, A::class); $closure();
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
B in B Fatal error: Uncaught ValueError: ReflectionMethod::getClosure(): Argument #1 ($object) cannot be null for non-static methods in /in/rFO8g:13 Stack trace: #0 /in/rFO8g(13): ReflectionMethod->getClosure() #1 {main} thrown in /in/rFO8g on line 13
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33
B in B Warning: ReflectionMethod::getClosure() expects exactly 1 parameter, 0 given in /in/rFO8g on line 13 Fatal error: Uncaught Error: Call to a member function bindTo() on null in /in/rFO8g:13 Stack trace: #0 {main} thrown in /in/rFO8g on line 13
Process exited with code 255.
Output for 5.6.8 - 5.6.28
B in B Warning: ReflectionMethod::getClosure() expects exactly 1 parameter, 0 given in /in/rFO8g on line 13 Fatal error: Call to a member function bindTo() on null in /in/rFO8g on line 13
Process exited with code 255.
Output for 5.5.24 - 5.5.35
B in B Warning: ReflectionMethod::getClosure() expects exactly 1 parameter, 0 given in /in/rFO8g on line 13 Fatal error: Call to a member function bindTo() on a non-object in /in/rFO8g on line 13
Process exited with code 255.
Output for 5.4.0 - 5.4.45
Parse error: syntax error, unexpected 'class' (T_CLASS), expecting identifier (T_STRING) or variable (T_VARIABLE) or '{' or '$' in /in/rFO8g on line 7
Process exited with code 255.

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