Fatal error: Uncaught TypeError: array_walk(): Argument #2 ($callback) must be a valid callback, array callback must have exactly two members in /in/77Mt7:6
Stack trace:
#0 /in/77Mt7(6): array_walk(Object(Closure), Array)
#1 {main}
thrown in /in/77Mt7 on line 6
Process exited with code 255.
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28
Fatal error: Uncaught TypeError: array_walk(): Argument #2 ($callback) must be a valid callback, array must have exactly two members in /in/77Mt7:6
Stack trace:
#0 /in/77Mt7(6): array_walk(Object(Closure), Array)
#1 {main}
thrown in /in/77Mt7 on line 6
Process exited with code 255.