: str_replace(): Passing null to parameter #2 ($replace) of type array|string is deprecated in
namespace Yoast\WP\SEO\Integrations\Alerts;
use Yoast\WP\SEO\Integrations\Integration_Interface;
* Dismissable_Alert class.
abstract class Abstract_Dismissable_Alert implements Integration_Interface {
* Holds the alert identifier.
protected $alert_identifier;
public static function get_conditionals() {
public function register_hooks() {
\add_filter( 'wpseo_allowed_dismissable_alerts', [ $this, 'register_dismissable_alert' ] );
* Registers the dismissable alert.
* @param string[] $allowed_dismissable_alerts The allowed dismissable alerts.
* @return string[] The allowed dismissable alerts.
public function register_dismissable_alert( $allowed_dismissable_alerts ) {
$allowed_dismissable_alerts[] = $this->alert_identifier;
return $allowed_dismissable_alerts;