: str_replace(): Passing null to parameter #2 ($replace) of type array|string is deprecated in
namespace Yoast\WP\SEO\Actions\Indexing;
use Yoast\WP\SEO\Helpers\Taxonomy_Helper;
* Reindexing action for term link indexables.
class Term_Link_Indexing_Action extends Abstract_Link_Indexing_Action {
public const UNINDEXED_COUNT_TRANSIENT = 'wpseo_unindexed_term_link_count';
* The transient cache key for limited counts.
public const UNINDEXED_LIMITED_COUNT_TRANSIENT = self::UNINDEXED_COUNT_TRANSIENT . '_limited';
protected $taxonomy_helper;
* Sets the required helper.
* @param Taxonomy_Helper $taxonomy_helper The taxonomy helper.
public function set_helper( Taxonomy_Helper $taxonomy_helper ) {
$this->taxonomy_helper = $taxonomy_helper;
* Returns objects to be indexed.
* @return array Objects to be indexed.
protected function get_objects() {
$query = $this->get_select_query( $this->get_limit() );
// phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared -- Function get_select_query returns a prepared query.
$terms = $this->wpdb->get_results( $query );
static function ( $term ) {
'id' => (int) $term->term_id,
'content' => $term->description,
* Builds a query for counting the number of unindexed term links.
* @return string The prepared query string.
protected function get_count_query() {
$public_taxonomies = $this->taxonomy_helper->get_indexable_taxonomies();
$placeholders = \implode( ', ', \array_fill( 0, \count( $public_taxonomies ), '%s' ) );
$indexable_table = Model::get_table_name( 'Indexable' );
// Warning: If this query is changed, makes sure to update the query in get_select_query as well.
return $this->wpdb->prepare(
FROM {$this->wpdb->term_taxonomy} AS T
LEFT JOIN $indexable_table AS I
ON T.term_id = I.object_id
AND I.object_type = 'term'
AND I.link_count IS NOT NULL
WHERE I.object_id IS NULL
AND T.taxonomy IN ($placeholders)",
* Builds a query for selecting the ID's of unindexed term links.
* @param int|false $limit The maximum number of term link IDs to return.
* @return string The prepared query string.
protected function get_select_query( $limit = false ) {
$public_taxonomies = $this->taxonomy_helper->get_indexable_taxonomies();
$indexable_table = Model::get_table_name( 'Indexable' );
$replacements = $public_taxonomies;
$limit_query = 'LIMIT %d';
$replacements[] = $limit;
// Warning: If this query is changed, makes sure to update the query in get_count_query as well.
return $this->wpdb->prepare(
SELECT T.term_id, T.description
FROM {$this->wpdb->term_taxonomy} AS T
LEFT JOIN $indexable_table AS I
ON T.term_id = I.object_id
AND I.object_type = 'term'
AND I.link_count IS NOT NULL
WHERE I.object_id IS NULL
AND T.taxonomy IN (" . \implode( ', ', \array_fill( 0, \count( $public_taxonomies ), '%s' ) ) . ")