Fatal error: Uncaught TypeError: array_keys(): Argument #1 ($array) must be of type array, int given in /in/DJGbr:4
Stack trace:
#0 /in/DJGbr(4): array_keys(100)
#1 {main}
thrown in /in/DJGbr on line 4
Process exited with code 255.
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: array_keys() expects parameter 1 to be array, int given in /in/DJGbr on line 4