<?php $arr1 = [2, 1, 2, 5, 7, 1, 9, 3, 6, 8, 8]; $arr2 = [2, 1, 8, 3]; $priority = array_flip($arr2); $fallback = count($arr2); usort( $arr1, fn($a, $b) => [$priority[$a] ?? $fallback, $a] <=> [$priority[$b] ?? $fallback, $b] ); var_export($arr1);
You have javascript disabled. You will not be able to edit any code.