<?php

class Connect
            {

                var $dbhost = 'localhost';
                var $dbuser = '';
                var $dbpass = '';
                var $dbname = '';


            function connect_mysql()
                {
                mysql_connect($this->dbhost, $this->dbuser, $this->dbpass) or die(mysql_error());
                mysql_select_db($this->dbname)or die(mysql_error());
                echo "Connected to database<br />";

                }

            }
class User
            {
                private $username;
                private $password;

                public function __construct($username, $password)
                {
                    $this->username = $username;
                    $this->password = $password;
                }

                function login()
                {
                    $result = mysql_query("SELECT username, password FROM users WHERE username = '{$this->username}' AND password='{$this->password}'");
                    if($result)
                    {
                        return mysql_num_rows($result);
                    }
                    return false;
                }

            }
class Login
{
    public function __construct()
    {
        $connect = new Connect();
        $connect->connect_mysql();

        $username = mysql_real_escape_string($_POST['username']);
        $password = mysql_real_escape_string($_POST['password']);

        $uzza = new User($username, $password);
    }

        function session()
        {
            if($uzza->login())
            {
                $_SESSION['user'] = $username;
                echo "Logged in successfully. Welcome " . $username . ".";
            }
            else
            {
             echo "User not found";
            }
        }

}

?>