Cara Membuat Login Member

1.CREATE TABLE user (

2.username varchar(20),

3.password varchar(20),

4.level varchar(20),

5.PRIMARY KEY(username)

6.);

1.INSERT INTO `user` VALUES ('a', 'pass1', 'admin');

2.INSERT INTO `user` VALUES ('b', 'pass2', 'admin');

3.INSERT INTO `user` VALUES ('c', 'pass3', 'user');

4.INSERT INTO `user` VALUES ('d', 'pass4', 'user');

5.INSERT INTO `user` VALUES ('e', 'pass5', 'user');

Tempelkan Tag HTML di bawah ini di blog.
<form method="post" action="loginsubmit.php">

<table border="0">

<tr>

<td>Masukkan Username </td>

<td><input name="username" type="text"></td>

</tr>

<tr>

<td>Masukkan Password </td>

<td><input name="pass" type="password"></td>

</tr>

<tr>

<td>&nbsp;</td>

<td><input type="submit" name="Submit" value="Submit"></td>

</tr>

</table>

</form>

mysql_connect('dbhost', 'dbuser', 'dbpass');

mysql_select_db('dbname');

$username = $_POST['username'];

$password = $_POST['pass'];

$query = "SELECT * FROM user WHERE username = '$username'";

$hasil = mysql_query($query);

$data = mysql_fetch_array($hasil);

if ($password == $data['password'])

{

echo "<h1>Login Sukses</h1>";

$_SESSION['level'] = $data['level'];

$_SESSION['username'] = $data['username'];

include "menu.php";

}

else echo "<h1>Login gagal</h1>";

?>

<?php

session_start();

if ($_SESSION['level'] == "admin")

{

echo "<a href='hal1.php'>Halaman 1</a> ";

echo "<a href='hal2.php'>Halaman 2</a> ";

echo "<a href='hal3.php'>Halaman 3</a> ";

echo "<a href='logout.php'>Logout</a> ";

}

else if ($_SESSION['level'] == "user")

{

echo "<a href='hal3.php'>Halaman 3</a>";

echo "<a href='logout.php'>Logout</a> ";

}

?>

if (isset($_SESSION['level']) && isset($_SESSION['username']))

{

include "menu.php";

if ($_SESSION['level'] == "admin")

{

echo "<h1>Halaman 1</h1>";

echo "<p>Selamat datang di halaman satu wahai user : ".$_SESSION['username']."</p>";

echo "<p>Ini adalah konten halaman 1</p>";

}

else

{

echo "<h1>Maaf.. Anda bukan user berlevel Administrator</h1>";

}

}

else

{

echo "<h1>Nah.. Anda pasti mencoba akses halaman ini tanpa login ya?</h1>";

}

?>

session_start();

if (isset($_SESSION['level']) && isset($_SESSION['username']))

{

include "menu.php";

if (($_SESSION['level'] == "admin") || ($_SESSION['level'] == "user"))

{

echo "<h1>Halaman 3</h1>";

echo "<p>Selamat datang di halaman tiga wahai user : $_SESSION['username']."</p>";

echo "<p>Ini adalah konten halaman 3</p>";

}

}

else

{

echo "<h1>Nah.. Anda pasti mencoba akses halaman ini tanpa login ya?</h1>";

}

?>

session_start();

session_destroy();

echo "<h1>Anda sudah logout</h1>";

echo "<p><a href='formlogin.htm'>Login Kembali</a></p>";

?>