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<?php try { $fn = function() { throw new Exception('test'); }; $fn(); } catch (Exception $e) { foreach ($e->getTrace() as $frame) { $r = new ReflectionFunction($frame['function']); echo($r->isClosure()); } }
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, 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 ReflectionException: Function {closure}() does not exist in /in/H4XrG:8 Stack trace: #0 /in/H4XrG(8): ReflectionFunction->__construct('{closure}') #1 {main} thrown in /in/H4XrG on line 8
Process exited with code 255.
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.28
Fatal error: Uncaught exception 'ReflectionException' with message 'Function {closure}() does not exist' in /in/H4XrG:8 Stack trace: #0 /in/H4XrG(8): ReflectionFunction->__construct('{closure}') #1 {main} thrown in /in/H4XrG on line 8
Process exited with code 255.
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202.43 ms | 402 KiB | 269 Q