: str_replace(): Passing null to parameter #2 ($replace) of type array|string is deprecated in
namespace Yoast\WP\SEO\Integrations\Watchers;
use Yoast\WP\SEO\Actions\Indexing\Indexable_Post_Indexation_Action;
use Yoast\WP\SEO\Conditionals\Migrations_Conditional;
use Yoast\WP\SEO\Config\Indexing_Reasons;
use Yoast\WP\SEO\Helpers\Attachment_Cleanup_Helper;
use Yoast\WP\SEO\Helpers\Indexing_Helper;
use Yoast\WP\SEO\Integrations\Cleanup_Integration;
use Yoast\WP\SEO\Integrations\Integration_Interface;
use Yoast_Notification_Center;
* Watches the disable-attachment key in wpseo_titles, in order to clear the permalink of the category indexables.
class Indexable_Attachment_Watcher implements Integration_Interface {
protected $indexing_helper;
* The attachment cleanup helper.
* @var Attachment_Cleanup_Helper
protected $attachment_cleanup;
* The notifications center.
* @var Yoast_Notification_Center
private $notification_center;
* Returns the conditionals based on which this loadable should be active.
public static function get_conditionals() {
return [ Migrations_Conditional::class ];
* Indexable_Attachment_Watcher constructor.
* @param Indexing_Helper $indexing_helper The indexing helper.
* @param Attachment_Cleanup_Helper $attachment_cleanup The attachment cleanup helper.
* @param Yoast_Notification_Center $notification_center The notification center.
public function __construct(
Indexing_Helper $indexing_helper,
Attachment_Cleanup_Helper $attachment_cleanup,
Yoast_Notification_Center $notification_center
$this->indexing_helper = $indexing_helper;
$this->attachment_cleanup = $attachment_cleanup;
$this->notification_center = $notification_center;
* Initializes the integration.
* This is the place to register hooks and filters.
public function register_hooks() {
\add_action( 'update_option_wpseo_titles', [ $this, 'check_option' ], 20, 2 );
* Checks if the disable-attachment key in wpseo_titles has a change in value, and if so,
* either it cleans up attachment indexables when it has been toggled to true,
* or it starts displaying a notification for the user to start a new SEO optimization.
* @param array $old_value The old value of the wpseo_titles option.
* @param array $new_value The new value of the wpseo_titles option.
public function check_option( $old_value, $new_value ) {
// If this is the first time saving the option, in which case its value would be false.
if ( $old_value === false ) {
// If either value is not an array, return.
if ( ! \is_array( $old_value ) || ! \is_array( $new_value ) ) {
// If both values aren't set, they haven't changed.
if ( ! isset( $old_value['disable-attachment'] ) && ! isset( $new_value['disable-attachment'] ) ) {
// If a new value has been set for 'disable-attachment', there's two things we might need to do, depending on what's the new value.
if ( $old_value['disable-attachment'] !== $new_value['disable-attachment'] ) {
// Delete cache because we now might have new stuff to index or old unindexed stuff don't need indexing anymore.
\delete_transient( Indexable_Post_Indexation_Action::UNINDEXED_COUNT_TRANSIENT );
\delete_transient( Indexable_Post_Indexation_Action::UNINDEXED_LIMITED_COUNT_TRANSIENT );
// Set this core option (introduced in WP 6.4) to ensure consistency.
if ( \get_option( 'wp_attachment_pages_enabled' ) !== false ) {
\update_option( 'wp_attachment_pages_enabled', (int) ! $new_value['disable-attachment'] );
switch ( $new_value['disable-attachment'] ) {
$this->indexing_helper->set_reason( Indexing_Reasons::REASON_ATTACHMENTS_MADE_ENABLED );
$this->attachment_cleanup->remove_attachment_indexables( false );
$this->attachment_cleanup->clean_attachment_links_from_target_indexable_ids( false );
if ( ! \wp_next_scheduled( Cleanup_Integration::START_HOOK ) ) {
// This just schedules the cleanup routine cron again.
\wp_schedule_single_event( ( \time() + ( \MINUTE_IN_SECONDS * 5 ) ), Cleanup_Integration::START_HOOK );