Koneksi PHP dan MySQL

config.php

<?php
$hostname = "localhost";
$username = "root";
$password = "secret-password";
$dbname   = "my_database";

//Koneksi dengan fungsi mysql_connect
$connect = mysql_connect($hostname, $username, $password);
mysql_select_db($dbname, $connect);

//Koneksi dengan fungsi mysqli_connect
$connect = mysqli_connect($hostname, $username, $password, $dbname);