Fatal error: Uncaught TypeError: array_merge(): Argument #2 must be of type array, null given in /in/cETOt:22
Stack trace:
#0 /in/cETOt(22): array_merge(Array, NULL)
#1 /in/cETOt(34): getCombinedSum(3, 4)
#2 {main}
thrown in /in/cETOt on line 22
Process exited with code 255.
Output for 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: array_merge(): Expected parameter 2 to be an array, null given in /in/cETOt on line 22
Warning: array_merge(): Expected parameter 2 to be an array, null given in /in/cETOt on line 22
Warning: array_merge(): Expected parameter 2 to be an array, null given in /in/cETOt on line 22
Warning: array_merge(): Expected parameter 2 to be an array, null given in /in/cETOt on line 22
NULL
Warning: array_merge(): Argument #2 is not an array in /in/cETOt on line 22
Warning: array_merge(): Argument #2 is not an array in /in/cETOt on line 22
Warning: array_merge(): Argument #2 is not an array in /in/cETOt on line 22
Warning: array_merge(): Argument #2 is not an array in /in/cETOt on line 22
NULL