Online PHP editor | output for ZHo2p

<?php function compare_arrays($array_1, $array_2) { $count_1 = count($array_1); $count_2 = count($array_2); for ($i = 0; $i < $count_1 - $count_2 + 1; $i++) { if ($array_1[$i] == $array_2[0]) { for ($j = 1; $j < $count_2 && $i + $j < $count_1; $j++) { if ($array_1[$i+$j] != $array_2[$j]) break; } if ($j == $count_2) return true; } } return false; } $array_1 = ['A', 'B', 'C', 'D', 'E', 'F']; $array_2 = ['B', 'C', 'D']; echo compare_arrays($array_1, $array_2) ? "true\n" : "false\n"; $array_2 = ['C', 'D', 'B']; echo compare_arrays($array_1, $array_2) ? "true\n" : "false\n"; $array_2 = ['B', 'D', 'E']; echo compare_arrays($array_1, $array_2) ? "true\n" : "false\n"; $array_2 = ['A', 'B', 'C']; echo compare_arrays($array_1, $array_2) ? "true\n" : "false\n"; $array_1 = ['A', 'C', 'C', 'D', 'E', 'F']; $array_2 = ['C', 'D', 'E']; echo compare_arrays($array_1, $array_2) ? "true\n" : "false\n";