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_rest_array_intersect_key_recursive( array $array1, array $array2 )

Recursively computes the intersection of arrays using keys for comparison.

Parameters

$array1

(array) (Required) The array with master keys to check.

$array2

(array) (Required) An array to compare keys against.

Return

(array) An associative array containing all the entries of array1 which have keys that are present in all arguments.

Source

File: wp-includes/rest-api.php

function _rest_array_intersect_key_recursive( $array1, $array2 ) {
	$array1 = array_intersect_key( $array1, $array2 );
	foreach ( $array1 as $key => $value ) {
		if ( is_array( $value ) && is_array( $array2[ $key ] ) ) {
			$array1[ $key ] = _rest_array_intersect_key_recursive( $value, $array2[ $key ] );
		}
	}
	return $array1;
}

Changelog

Version Description
5.3.0 Introduced.

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Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/functions/_rest_array_intersect_key_recursive