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<?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);
Output for git.master, git.master_jit, rfc.property-hooks
array ( 0 => 2, 1 => 2, 2 => 1, 3 => 1, 4 => 8, 5 => 8, 6 => 3, 7 => 5, 8 => 6, 9 => 7, 10 => 9, )

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