Why is the request hanging?

Question

PHP

Is this request hanging up my browser?

public function getByInn($inn): array
    {
        try {
            $limit = 8;
            $selectQuery = $this->db->prepare('SELECT * FROM users WHERE inn = :inn LIMIT :limit');
            $selectQuery->execute(['limit' => $limit, 'inn' => $inn]);
            $row =  $selectQuery->fetchAll();
            return $row;
        } catch (PDOException $e) {
            echo $e->getMessage();
        }
    }

and doesn't give me any errors. The table consists of one line.

PS Everything is fine, I just arranged a recursion in the handler, calling the handler again