UnknownSec Bypass 403

: /proc/self/root/var/www/stbilling/data-table/config/ [ drwxrwxr-x ]
name : db-config.php <?php class DBController { private $hostname = "localhost:3307"; private $username = "root"; private $password = ""; private $db = "blblifecaredb"; //create connection public function connect() { $conn = new mysqli($this->hostname, $this->username, $this->password, $this->db)or die("Database connection error." . $conn->connect_error); return $conn; } // close connection public function close($conn) { $conn->close(); } } ?>