Web Designing Theory

              how to create login form in php with MySQL Login Form        EXAMPLE :- <?php include 'connection.php' ;         if ( isset ( $_POST [ 'b1' ]))         {                         $email = $_POST [ 'uem' ];             $pass = $_POST [ 'upwd' ];     $q = " SELECT * FROM userdetails WHERE uem = ' $email ' AND upwd = ' $pass ' " ;             $rs = mysqli_query ( $cn , $q );             $count = mysqli_num_rows ( $rs );                 if ( $count == 1 )                 {                     session_start (); //start             $data = mysqli_fetch...