PHP connects Hostinger MySQL database

After registering my domain on Hostinger, I tried to connect the Hostinger MySQL database from PHP script. Be careful about the server name:

<?php$servername = "localhost"; // work$servername = "mysql.hostinger.com"; // not work$servername = "182.12.24.1"; // not work$username = "uxxxx_xxx";$password = "xxxxxx";$dbname = "uxxxx_xxx";// create connection$conn = mysqli_connect($servername, $username, $password, $dbname);// check connectionif (!$conn) {die("Connection failed: " . mysqli_connect_error());}?>