Online PHP editor | output for 0N9ac

Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: Warning: Undefined variable $names in /in/0N9ac on line 9 Fatal error: Uncaught TypeError: array_map(): Argument #2 ($array) must be of type array, null given in /in/0N9ac:5 Stack trace: #0 /in/0N9ac(5): array_map(Object(Closure), NULL) #1 {main} thrown in /in/0N9ac on line 5
Process exited with code 255.
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28: Warning: Undefined variable $names in /in/0N9ac on line 9 Fatal error: Uncaught TypeError: array_map(): Argument #2 ($array) must be of type array, null given in /in/0N9ac:9 Stack trace: #0 /in/0N9ac(9): array_map(Object(Closure), NULL) #1 {main} thrown in /in/0N9ac on line 9
Process exited with code 255.
Output for 7.3.0 - 7.3.31, 7.4.0 - 7.4.33: Notice: Undefined variable: names in /in/0N9ac on line 9 Warning: array_map(): Expected parameter 2 to be an array, null given in /in/0N9ac on line 9
Output for 7.3.32 - 7.3.33: Warning: array_map(): Expected parameter 2 to be an array, null given in /in/0N9ac on line 9
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.25, 7.0.20, 7.1.5 - 7.1.33, 7.2.0 - 7.2.33: Notice: Undefined variable: names in /in/0N9ac on line 9 Warning: array_map(): Argument #2 should be an array in /in/0N9ac on line 9
Output for 7.0.0 - 7.0.14, 7.1.0: Notice: Undefined variable: names in /in/0N9ac on line 8 Warning: array_map(): Argument #2 should be an array in /in/0N9ac on line 8
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17: Parse error: syntax error, unexpected T_FUNCTION, expecting ')' in /in/0N9ac on line 6
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5: Parse error: parse error, unexpected T_FUNCTION, expecting ')' in /in/0N9ac on line 6
Process exited with code 255.
Output for 4.3.2 - 4.3.4: Parse error: parse error, expecting `')'' in /in/0N9ac on line 6
Process exited with code 255.