int(22)
Fatal error: Uncaught TypeError: array_keys(): Argument #1 ($array) must be of type array, int given in /in/1SmtD:6
Stack trace:
#0 /in/1SmtD(6): array_keys(23)
#1 {main}
thrown in /in/1SmtD on line 6
Process exited with code 255.
Output for 7.3.12 - 7.3.33, 7.4.0 - 7.4.33
int(22)
Warning: array_keys() expects parameter 1 to be array, int given in /in/1SmtD on line 6
NULL