Online PHP editor | output for 3cfKq

Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6: Warning: Undefined variable $input in /in/3cfKq on line 3 Fatal error: Uncaught TypeError: array_reverse(): Argument #1 ($array) must be of type array, null given in /in/3cfKq:3 Stack trace: #0 /in/3cfKq(3): array_reverse(NULL) #1 {main} thrown in /in/3cfKq on line 3
Process exited with code 255.
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33: Notice: Undefined variable: input in /in/3cfKq on line 3 Warning: array_reverse() expects parameter 1 to be array, null given in /in/3cfKq on line 3 Warning: Invalid argument supplied for foreach() in /in/3cfKq on line 4
Output for 7.3.32 - 7.3.33: Warning: array_reverse() expects parameter 1 to be array, null given in /in/3cfKq on line 3 Warning: Invalid argument supplied for foreach() in /in/3cfKq on line 4
Output for 5.0.4 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17: Notice: Undefined variable: input in /in/3cfKq on line 3 Warning: array_reverse(): The argument should be an array in /in/3cfKq on line 3 Warning: Invalid argument supplied for foreach() in /in/3cfKq on line 4
Output for 4.3.2 - 4.3.10, 4.4.0 - 4.4.9, 5.0.0 - 5.0.3: Notice: Undefined variable: input in /in/3cfKq on line 3 Warning: array_reverse(): The argument should be an array in /in/3cfKq on line 3 Warning: Invalid argument supplied for foreach() in /in/3cfKq on line 4
Output for 4.3.11: Notice: Undefined variable: input in /in/3cfKq on line 3 Warning: array_reverse(): The argument should be an array in /in/3cfKq on line 3
Output for 4.3.0 - 4.3.1: Notice: Undefined variable: input in /in/3cfKq on line 3 Warning: array_reverse() [http://www.php.net/function.array-reverse]: The argument should be an array in /in/3cfKq on line 3 Warning: Invalid argument supplied for foreach() in /in/3cfKq on line 4