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<?php $a = array('a' => 'DateTime', 'b' => 'getLastErrors'); call_user_func($a);
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($callback) must be a valid callback, array callback has to contain indices 0 and 1 in /in/BlUWR:3 Stack trace: #0 {main} thrown in /in/BlUWR on line 3
Process exited with code 255.
Output for 8.0.10 - 8.0.30, 8.1.0 - 8.1.28
Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($callback) must be a valid callback, first array member is not a valid class name or object in /in/BlUWR:3 Stack trace: #0 {main} thrown in /in/BlUWR on line 3
Process exited with code 255.
Output for 8.0.0 - 8.0.9
Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($function) must be a valid callback, first array member is not a valid class name or object in /in/BlUWR:3 Stack trace: #0 {main} thrown in /in/BlUWR on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 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 - 7.4.33
Warning: call_user_func() expects parameter 1 to be a valid callback, first array member is not a valid class name or object in /in/BlUWR on line 3
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Warning: call_user_func(Array): First argument is expected to be a valid callback in /in/BlUWR on line 3
Output for 4.3.0 - 4.3.1
Warning: call_user_func(Array) [http://www.php.net/function.call-user-func]: First argument is expected to be a valid callback in /in/BlUWR on line 3

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