script php proses login

?php require_once 'koneksi.php'; $username=$_POST['username']; $password=md5($_POST['password']); $sql=mysqli_query($link,"SELECT * FROM admin WHERE username='$username' AND password='$password'"); $data=mysqli_fetch_array($sql); $result=mysqli_num_rows($sql); if ($result0) { session_start(); $_SESSION['idadmin']=$data['idadmin']; $_SESSION ... booking com extranet login