Koneksi MYSQL PHP MYSQL Menggunkan Extension MYSQLI

<?php
$db_host = "localhost";
$db_user = "root";
$db_pass = "";
$db_name = "db_toko";
$koneksi = mysqli_connect($db_host, $db_user, $db_pass, $db_name);
if(mysqli_connect_errno()){
    echo 'Gagal melakukan koneksi ke Database Gan!!: '.mysqli_connect_error();
}else{
    echo 'Koneksi berhasil Happy Kumain Coding';
}
?>