Check if two arrays have the same values

Question

[2,5,3]    

[5,2,3]

They are equal because they have the same values, but not in the same order. Can I find out that without using a foreach loop

Answer 1

As none of the given answers that are completely key-independent work with duplicated values (like [1,1,2] equals [1,2,2]) I've written my own.

This variant does not work with multi-dimensional arrays. It does check whether two arrays contain the exactly same values, regardless of their keys and order without modifying any of the arguments.

function array_equals(array $either, array $other) : bool {
    $copy = $either;
    foreach ($other as $element) {
        $key = array_search($element, $copy, true);
        if ($key === false) {
            return false;
        }
        unset($copy[$key]);
    }
    return empty($copy);
}

Although the question asked about a foreach-free variant, I couldn't find any solution that satisfied my requirements without a loop. Additionally most of the otherwise used functions use a loop internally too.