proses_login

<?php
include "koneksi.php";
$nama = $_POST['nama'];
$username = $_POST['username'];
$password = md5($_POST['password']);
$level = $_POST['level'];
if (empty($nama)){
echo "<script>alert('Nama belum diisi')</script>";
echo "<meta http-equiv='refresh' content='1 url=daftar.php'>";
}else
if(empty($username)){
echo "<script>alert('Username belum diisi')</script>";
echo "<meta http-equiv='refresh' content='1 url=daftar.php'>";
}else
if (empty($password)){
echo "<script>alert('Password belum diisi')</script>";
echo "<meta http-equiv='refresh' content='1 url=daftar.php'>";
}
if (empty($level)){
echo "<script>alert('Level belum diisi')</script>";
echo "<meta http-equiv='refresh' content='1 url=daftar.php'>";
}else{
$daftar = mysql_query("INSERT INTO tab_user (id_user,nama,username,password,level) values ('$nama','$username','$password','$level')");
if ($daftar){
echo "<script>alert('Berhasil Mendaftar')</script>";
echo "<meta http-equiv='refresh' content='1 url=login.php'>";
}else{
echo "<script>alert('Gagal Mendaftar')</script>";
echo "<meta http-equiv='refresh' content='1 url=daftar.php'>";
}
}
?>