Fatal error: Uncaught TypeError: usort(): Argument #1 ($array) must be of type array, null given in /in/Q3PWo:3
Stack trace:
#0 /in/Q3PWo(3): usort(NULL, Object(Closure))
#1 {main}
thrown in /in/Q3PWo on line 3
Process exited with code 255.
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28
Fatal error: Uncaught TypeError: usort(): Argument #1 ($array) must be of type array, null given in /in/Q3PWo:5
Stack trace:
#0 /in/Q3PWo(5): usort(NULL, Object(Closure))
#1 {main}
thrown in /in/Q3PWo on line 5
Process exited with code 255.