myCode

<?php
	include('include/db_con.php');
	session_start();
		if (isset($_POST['username'],$_POST['password']))
			   {
                $username=$_POST['username'];
                $password=$_POST['password'];

                   if (empty($username) || empty($password))
                   {
                      $error = 'Hey All fields are required!!';
                    }

					 else {
					 $login="select * from users where user_name='".$username."' and user_password ='".$password."'";
					 $result=mysql_query($login);
					 print_r($result);


					if(mysql_fetch_array($result)){
				 $_SESSION['logged_in']='true';
				 $_SESSION['username']=$username;
					 header('Location:registration.php');
					 exit();
					 } else {
					 $error='Incorrect details !!';
					 }
					       }
		}

  ?>