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run code in 150+ php & hhvm versions
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<?php $a = array('ReflectionFunction','export'); $a = $a('ReflectionFunction::invoke',true); var_dump($a);
based on kvXWq
Output for 7.0.0 - 7.1.0
Fatal error: Uncaught ReflectionException: Function ReflectionFunction::invoke() does not exist in /in/YDeuo:3 Stack trace: #0 [internal function]: ReflectionFunction->__construct('ReflectionFunct...') #1 /in/YDeuo(3): ReflectionFunction::export('ReflectionFunct...', true) #2 {main} thrown in /in/YDeuo on line 3
Process exited with code 255.
Output for hhvm-3.12.0
Fatal error: Uncaught exception 'ReflectionException' with message 'Function ReflectionFunction::invoke does not exist' in /in/YDeuo:3 Stack trace: #0 /in/YDeuo(3): ReflectionFunction::export() #1 {main}
Process exited with code 255.
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.4.0 - 5.6.28
Fatal error: Uncaught exception 'ReflectionException' with message 'Function ReflectionFunction::invoke() does not exist' in /in/YDeuo:3 Stack trace: #0 [internal function]: ReflectionFunction->__construct('ReflectionFunct...') #1 /in/YDeuo(3): ReflectionFunction::export('ReflectionFunct...', true) #2 {main} thrown in /in/YDeuo on line 3
Process exited with code 255.
Output for 5.0.0 - 5.3.29
Fatal error: Function name must be a string in /in/YDeuo on line 3
Process exited with code 255.
Output for 4.4.5 - 4.4.9
Notice: Array to string conversion in /in/YDeuo on line 3 Fatal error: Call to undefined function: array() in /in/YDeuo on line 3
Process exited with code 255.
Output for 4.3.2 - 4.4.4
Notice: Array to string conversion in /in/YDeuo on line 3 Fatal error: Call to undefined function: array() in /in/YDeuo on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Notice: Array to string conversion in /in/YDeuo on line 3 Fatal error: Call to undefined function: array() in /in/YDeuo on line 3