PHP - Filter keys in multidimensional array

recursive_filter_keys.php

<?php
/**
 * Filter keys in multidimensional array.
 *
 * @param  mixed $arr The array to filter.
 * @param  mixed ...$keys Keys to remove. Accepts multiple strings or an array of strings.
 * @return array $new Array without specified keys.
 */
function recursive_filter_keys( &$arr, ...$keys ) {
	if ( isset( $keys[0] ) && is_array( $keys[0] ) ) {
		$keys = $keys[0];
	}
	$new = $arr;
	foreach ( $keys as $key ) {
		foreach ( $new as &$value ) {
			if ( is_array( $value ) ) {
				$value = recursive_filter_keys( $value, $key );
			}
		}
		$new = array_filter(
			$new,
			function( $k ) use ( $key ) {
				return $k !== $key;
			},
			ARRAY_FILTER_USE_KEY
		);
	}
	return $new;
}