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<?php $empty_arr = array(); $not_arr = null; $x = array_shift($empty_arr); $not_arr = array_shift($not_arr); var_dump($x); var_dump($not_arr);
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Fatal error: Uncaught TypeError: array_shift(): Argument #1 ($array) must be of type array, null given in /in/JhD7a:6 Stack trace: #0 /in/JhD7a(6): array_shift(NULL) #1 {main} thrown in /in/JhD7a on line 6
Process exited with code 255.
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.37, 5.6.0 - 5.6.28, 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
Warning: array_shift() expects parameter 1 to be array, null given in /in/JhD7a on line 6 NULL NULL
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: array_shift(): The argument should be an array in /in/JhD7a on line 6 NULL NULL
Output for 4.3.0 - 4.3.1
Warning: array_shift() [http://www.php.net/function.array-shift]: The argument should be an array in /in/JhD7a on line 6 NULL NULL

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264.59 ms | 401 KiB | 392 Q