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<?php $r = new ReflectionMethod(function() {}); var_dump($r->isClosure()); $r = new ReflectionFunction(function() {}); var_dump($r->isClosure());
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught ValueError: ReflectionMethod::__construct(): Argument #2 ($method) cannot be null when argument #1 ($objectOrMethod) is an object in /in/O6o6e:2 Stack trace: #0 /in/O6o6e(2): ReflectionMethod->__construct(Object(Closure)) #1 {main} thrown in /in/O6o6e on line 2
Process exited with code 255.
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Fatal error: Uncaught TypeError: ReflectionMethod::__construct() expects parameter 1 to be string, object given in /in/O6o6e:2 Stack trace: #0 /in/O6o6e(2): ReflectionMethod->__construct(Object(Closure)) #1 {main} thrown in /in/O6o6e on line 2
Process exited with code 255.
Output for 5.3.3 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28
Warning: ReflectionMethod::__construct() expects parameter 1 to be string, object given in /in/O6o6e on line 2 Fatal error: ReflectionFunctionAbstract::isClosure(): Internal error: Failed to retrieve the reflection object in /in/O6o6e on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.2
Warning: ReflectionMethod::__construct() expects parameter 1 to be string, object given in /in/O6o6e on line 2 Fatal error: Internal error: Failed to retrieve the reflection object in /in/O6o6e on line 3
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/O6o6e on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_FUNCTION, expecting ')' in /in/O6o6e on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `')'' in /in/O6o6e on line 2
Process exited with code 255.

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