Online PHP editor | refs for 5gKv4

<?php $len = readline('Insert lenght of the array' . PHP_EOL); $arr = []; $mid = $len / 2; for ($i = 0; $i < $len; $i++) { $arr[] = readline('Insert number' . PHP_EOL); if ($len % 2 !== 0 && $arr[ceil($mid) + 1] == [ceil($mid) + 1] ) { $ismirror = true; }elseif ($len % 2 == 0 && $arr[$mid] == $arr[$mid +1] && $arr[$mid - 1] == $arr[$mid + 2]){ $ismirror = true; } } echo $ismirror ? 'Yes' : 'No';