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<?php var_dump(array_sum(false));
Output for 8.3.0 - 8.3.6
Fatal error: Uncaught TypeError: array_sum(): Argument #1 ($array) must be of type array, false given in /in/QuAEi:3 Stack trace: #0 /in/QuAEi(3): array_sum(false) #1 {main} thrown in /in/QuAEi on line 3
Process exited with code 255.
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18
Fatal error: Uncaught TypeError: array_sum(): Argument #1 ($array) must be of type array, bool given in /in/QuAEi:3 Stack trace: #0 /in/QuAEi(3): array_sum(false) #1 {main} thrown in /in/QuAEi on line 3
Process exited with code 255.
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: array_sum() expects parameter 1 to be array, bool given in /in/QuAEi on line 3 NULL
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33
Warning: array_sum() expects parameter 1 to be array, boolean given in /in/QuAEi on line 3 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_sum(): The argument should be an array in /in/QuAEi on line 3 NULL
Output for 4.3.0 - 4.3.1
Warning: array_sum() [http://www.php.net/function.array-sum]: The argument should be an array in /in/QuAEi on line 3 NULL

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