Online PHP editor | output for LcVPJ

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: Fatal error: Uncaught TypeError: array_reduce(): Argument #1 ($array) must be of type array, string given in /in/LcVPJ:7 Stack trace: #0 /in/LcVPJ(7): array_reduce('mycallback', Array) #1 {main} thrown in /in/LcVPJ on line 7
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_reduce() expects parameter 1 to be array, string given in /in/LcVPJ on line 7 NULL
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17: Warning: array_reduce(): The first argument should be an array in /in/LcVPJ on line 7 NULL
Output for 4.3.0 - 4.3.1: Warning: array_reduce() [http://www.php.net/function.array-reduce]: The first argument should be an array in /in/LcVPJ on line 7 NULL