class.php

<?php
session_start();
//membuat calss database
 class database
 {
 	public $host= "localhost";
 	public $user= "root";
 	public $pass= "";
 	public $dbname= "webarfa";

 	//membuat fungsi untuk koneksi
 	function koneksi()
 	{
 		mysql_connect($this->host,$this->user,$this->pass);
 		mysql_select_db($this->dbname);
 	}


 class pengguna
 	{

 		function login_pengguna($uid,$pass)
 		{

 			$pass = md5($pass);
 			$ambildata = mysql_query("SELECT * FROM pengguna WHERE username= '$uid' AND password= '$pass'");
 			$hitung = mysql_num_rows($ambildata);
 			$pecah = mysql_fetch_array($ambildata);
 			if ($hitung>0)
 			 {
 			 	//login sukses
 				$_SESSION['id_pengguna'] = $pecah['id_pengguna'];
 				$_SESSION['username'] = $pecah['username'];
 				$_SESSION['password'] = $pecah['password'];
 				$_SESSION['nama'] = $pecah['nama'];
 				return true;
 			}
 			else
 			{
 				//login gagal
 				return false;
 			}
 		}
 	}

}
 //instanci class database
$db = new database();
$db -> koneksi();
//instance calss pengguna
$pengguna = new pengguna();

?>