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<?php $array = [ "val", "val", [ "val", "val" ] ]; $result = call_user_func_array('array_merge', $array); var_dump($result);
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 TypeError: array_merge(): Argument #1 must be of type array, string given in /in/tY8vD:12 Stack trace: #0 /in/tY8vD(12): array_merge('val', 'val', Array) #1 {main} thrown in /in/tY8vD on line 12
Process exited with code 255.
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: array_merge(): Expected parameter 1 to be an array, string given in /in/tY8vD on line 12 NULL
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33
Warning: array_merge(): Argument #1 is not an array in /in/tY8vD on line 12 NULL
preferences:
208.87 ms | 402 KiB | 217 Q