: str_replace(): Passing null to parameter #2 ($replace) of type array|string is deprecated in
namespace Yoast\WP\SEO\Routes;
use Yoast\WP\SEO\Conditionals\No_Conditionals;
* Meta_Search_Route class
class Meta_Search_Route implements Route_Interface {
* Represents meta search route.
public const META_SEARCH_ROUTE = '/meta/search';
* Registers routes with WordPress.
public function register_routes() {
'callback' => [ $this, 'search_meta' ],
'permission_callback' => [ $this, 'permission_check' ],
\register_rest_route( Main::API_V1_NAMESPACE, self::META_SEARCH_ROUTE, $route );
* Performs the permission check.
* @param WP_REST_Request $request The request.
public function permission_check( $request ) {
if ( ! isset( $request['post_id'] ) ) {
$post_type = \get_post_type( $request['post_id'] );
$post_type_object = \get_post_type_object( $post_type );
return \current_user_can( $post_type_object->cap->edit_posts );
* Searches meta fields of a given post.
* @param WP_REST_Request $request The REST request.
* @return WP_REST_Response
public function search_meta( $request ) {
$post_id = $request['post_id'];
$query = $request['query'];
$meta = \get_post_custom( $post_id );
foreach ( $meta as $key => $values ) {
if ( \substr( $key, 0, \strlen( $query ) ) !== $query ) {
if ( empty( $query ) && \substr( $key, 0, 1 ) === '_' ) {
// Skip custom field values that are serialized.
if ( \is_serialized( $values[0] ) ) {
if ( \count( $matches ) >= 25 ) {
return \rest_ensure_response( [ 'meta' => $matches ] );