Online PHP editor | output for T5eKD

Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7: Warning: Undefined array key "i" in /in/T5eKD on line 4 Warning: foreach() argument must be of type array|object, null given in /in/T5eKD on line 4 Warning: Undefined array key "i" in /in/T5eKD on line 8 Fatal error: Uncaught TypeError: array_unique(): Argument #1 ($array) must be of type array, null given in /in/T5eKD:8 Stack trace: #0 /in/T5eKD(8): array_unique(NULL) #1 /in/T5eKD(11): tg(Array) #2 {main} thrown in /in/T5eKD on line 8
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, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33: Notice: Undefined index: i in /in/T5eKD on line 4 Warning: Invalid argument supplied for foreach() in /in/T5eKD on line 4 Notice: Undefined index: i in /in/T5eKD on line 8 Warning: array_unique() expects parameter 1 to be array, null given in /in/T5eKD on line 8
Output for 7.3.32 - 7.3.33: Warning: Invalid argument supplied for foreach() in /in/T5eKD on line 4 Warning: array_unique() expects parameter 1 to be array, null given in /in/T5eKD on line 8
Output for 5.2.1 - 5.2.17: Notice: Undefined index: i in /in/T5eKD on line 4 Warning: Invalid argument supplied for foreach() in /in/T5eKD on line 4 Notice: Undefined index: i in /in/T5eKD on line 8 Warning: array_unique(): The argument should be an array in /in/T5eKD on line 8
Output for 4.3.2 - 4.3.10, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0: Warning: Invalid argument supplied for foreach() in /in/T5eKD on line 4 Warning: array_unique(): The argument should be an array in /in/T5eKD on line 8
Output for 4.3.11: Warning: array_unique(): The argument should be an array in /in/T5eKD on line 8
Output for 4.3.0 - 4.3.1: Warning: Invalid argument supplied for foreach() in /in/T5eKD on line 4 Warning: array_unique() [http://www.php.net/function.array-unique]: The argument should be an array in /in/T5eKD on line 8