Online PHP editor | output for X8NGv

Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.7: Fatal error: Uncaught TypeError: array_map(): Argument #1 ($callback) must be a valid callback or null, array callback must have exactly two members in /in/X8NGv:1 Stack trace: #0 /in/X8NGv(1): array_map(Array, 'ord') #1 {main} thrown in /in/X8NGv on line 1
Process exited with code 255.
Output for 8.1.0 - 8.1.28: Fatal error: Uncaught TypeError: array_map(): Argument #1 ($callback) must be a valid callback or null, array must have exactly two members in /in/X8NGv:1 Stack trace: #0 /in/X8NGv(1): array_map(Array, 'ord') #1 {main} thrown in /in/X8NGv on line 1
Process exited with code 255.
Output for 8.0.0 - 8.0.30: Fatal error: Uncaught TypeError: array_map(): Argument #1 ($callback) must be a valid callback, array must have exactly two members in /in/X8NGv:1 Stack trace: #0 /in/X8NGv(1): array_map(Array, 'ord') #1 {main} thrown in /in/X8NGv on line 1
Process exited with code 255.
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33: Warning: array_map() expects parameter 1 to be a valid callback, array must have exactly two members in /in/X8NGv on line 1 Warning: implode(): Invalid arguments passed in /in/X8NGv on line 1
Output for 5.2.5 - 5.2.17: Warning: array_map(): The first argument, 'Array', should be either NULL or a valid callback in /in/X8NGv on line 1 Warning: implode(): Invalid arguments passed in /in/X8NGv on line 1
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.4: Warning: array_map(): The first argument, 'Array', should be either NULL or a valid callback in /in/X8NGv on line 1 Warning: implode(): Bad arguments. in /in/X8NGv on line 1
Output for 4.4.5 - 4.4.9: Fatal error: Call to undefined function: str_split() in /in/X8NGv on line 1
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.4: Fatal error: Call to undefined function: str_split() in /in/X8NGv on line 1
Process exited with code 255.
Output for 4.3.0 - 4.3.1: Fatal error: Call to undefined function: str_split() in /in/X8NGv on line 1