Fatal error: Uncaught TypeError: array_merge(): Argument #1 must be of type array, string given in /in/HFHQe:3
Stack trace:
#0 /in/HFHQe(3): array_merge('string1', 'string2')
#1 {main}
thrown in /in/HFHQe on line 3
Process exited with code 255.
Output for 7.3.16 - 7.3.33, 7.4.0 - 7.4.33
Warning: array_merge(): Expected parameter 1 to be an array, string given in /in/HFHQe on line 3