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<?php $array_1 = array('something1', something2); $array_2 = array('something3', something4); $array_3 = array(); $array_4 = array('something1', something2); $list = array($array_1,$array_2,$array_3,$array_4); array_walk($list,function(&$value, $key){ });
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 Error: Undefined constant "something2" in /in/X7BlG:2 Stack trace: #0 {main} thrown in /in/X7BlG on line 2
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: Use of undefined constant something2 - assumed 'something2' (this will throw an Error in a future version of PHP) in /in/X7BlG on line 2 Warning: Use of undefined constant something4 - assumed 'something4' (this will throw an Error in a future version of PHP) in /in/X7BlG on line 3 Warning: Use of undefined constant something2 - assumed 'something2' (this will throw an Error in a future version of PHP) in /in/X7BlG on line 5
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
Notice: Use of undefined constant something2 - assumed 'something2' in /in/X7BlG on line 2 Notice: Use of undefined constant something4 - assumed 'something4' in /in/X7BlG on line 3 Notice: Use of undefined constant something2 - assumed 'something2' in /in/X7BlG on line 5
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 in /in/X7BlG on line 8
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 in /in/X7BlG on line 8
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/X7BlG on line 8
Process exited with code 255.

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