: str_replace(): Passing null to parameter #2 ($replace) of type array|string is deprecated in
* @param string $cache_key oEmbed cache key.
* @return int|null Post ID on success, null on failure.
public function find_oembed_post_id( $cache_key ) {
$cache_group = 'oembed_cache_post';
$oembed_post_id = wp_cache_get( $cache_key, $cache_group );
if ( $oembed_post_id && 'oembed_cache' === get_post_type( $oembed_post_id ) ) {
$oembed_post_query = new WP_Query(
'post_type' => 'oembed_cache',
'post_status' => 'publish',
'update_post_meta_cache' => false,
'update_post_term_cache' => false,
'lazy_load_term_meta' => false,
if ( ! empty( $oembed_post_query->posts ) ) {
// Note: 'fields' => 'ids' is not being used in order to cache the post object as it will be needed.
$oembed_post_id = $oembed_post_query->posts[0]->ID;
wp_cache_set( $cache_key, $oembed_post_id, $cache_group );