: str_replace(): Passing null to parameter #2 ($replace) of type array|string is deprecated in
namespace Yoast\WP\SEO\Services\Health_Check;
* Runs the Page_Comments health check.
class Page_Comments_Runner implements Runner_Interface {
* Is set to true when comments are set to display on a single page.
private $comments_on_single_page;
public function __construct() {
$this->comments_on_single_page = false;
* Runs the health check. Checks if comments are displayed on a single page.
$this->comments_on_single_page = \get_option( 'page_comments' ) !== '1';
* Returns true if comments are displayed on a single page.
* @return bool True if comments are displayed on a single page.
public function is_successful() {
return $this->comments_on_single_page;