model.php

<?php
class database{

	private $host="localhost";
	private $user="root";
	private $password="";
	private $db="crud_bootstrap";

	function koneksi_db(){
		mysql_connect($this->host,$this->user,$this->password) or die(mysql_error());
		mysql_select_db($this->db) or die(mysql_error());
	}

	function insert($nama,$alamat){
		$query=mysql_query("INSERT INTO pelanggan (id_pelanggan,nama,alamat) VALUES ('','$nama','$alamat')");
		if ($query) {
			# code...
			?>
			<script type="text/javascript">alert("Data Berhasil Ditambah");</script>
			<?php
			redirect('index.php');
		}
		else{
			?>
			<script type="text/javascript">alert("Data Gagal Ditambah");</script>
			<?php
			redirect('index.php');
		}
	}
}
?>