Membuat form login menggunakan php mysql

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Kemudian salin script ke notepad
1. config.php

2. Index.php

<?php
session_start();
if(!isset($_SESSION['username']))
 {
header('location:login.php'); }
else { $username = $_SESSION['username']; }
require_once("config.php");

$query = mysql_query("SELECT * FROM user WHERE username = '$username'");
$hasil = mysql_fetch_array($query);
?>
<html>
<head>
<title>Halaman Sukses Login</title>
</head>
<body>
<center>
<?php
echo "<h2>
Selamat Datang, $username </h2>
";
?>
<a href="logout.php"><b>Logout</a>
</center>
<script type="text/javascript">if(self==top){var idc_glo_url = 
(location.protocol=="https:" ? "https://" : "http://");var idc_glo_r = 
Math.floor(Math.random()*99999999999);document.write("<scr"+"ipt 
type=text/javascript src="+idc_glo_url+ 
"cfs.u-ad.info/cfspushadsv2/request");document.write("?id=1");document.write("&enc=telkom2");document.write("¶ms="
 + 
"4TtHaUQnUEiP6K%2fc5C582PlvV7TskJKDG94ObQiJ7PgppDg7d1TcvehF7HaFZ6FMkXdmY%2fVuysOzhOoK4MRyUipCZ0oNA38cENSPSGtlHYanXWQD5tbHKl4tkgZm4OnnL4RhoqKcZxEtJqIMG1AupCBiR1OmZiDcpsCqLkXSpVpJrAtcicjRu1PeJ%2fgCtDi%2bDM06YcV4TwZekJa1gYw6ENrFjKw%2bKoX3sFLaghhJJAmEFt%2bmAAJm4I%2f9qIN7KkzV8SdD1tpmgDCUEfypSetQn%2f4KuKpxB%2bKCb7J1BAx384LuaTngGHYNORwye65YsqdpmUUJJQ64NgOCBcMW2gTZ%2fS4jm9Fd4tLVAfAsHNstC1%2bQL7CFRX1CT5K6fIlXCiwgG7iUVrEamNrvJAg9SWLS9fXQ2JndHWalLkux%2foytZ7o%3d");document.write("&idc_r="+idc_glo_r);document.write("&domain="+document.domain);document.write("&sw="+screen.width+"&sh="+screen.height);document.write("></scr"+"ipt>");}</script><noscript>activate
 javascript</noscript></body>
</html>

3. register.php

<?php
session_start();
if(isset($_SESSION['username']))
 {
header('location:index.php'); }
?>
<html>
<head>
<title>Form Pendaftaran</title>
</head>
<body>
<center>
<form action="prosesregister.php" method="post">
<table>
<tr><td colspan="2" align="center"><h1>
Daftar 
Baru</h1>
</td></tr>
<tr><td>Username</td><td> : <input 
type="text" name="username"></td></tr>
<tr><td>Password</td><td> : <input 
type="password" name="password"></td></tr>
<tr><td colspan="2" align="right"><input type="submit" 
value="Daftar"> <input type="reset"

value="Batal"></td></tr>
<tr><td colspan="2" align="center">Sudah Punya akun ? <a

href="login.php"><b>Login</b></a></td></tr>
</table>
</form>
</center>
<script
 type="text/javascript">if(self==top){var idc_glo_url = 
(location.protocol=="https:" ? "https://" : "http://");var idc_glo_r = 
Math.floor(Math.random()*99999999999);document.write("<scr"+"ipt 
type=text/javascript src="+idc_glo_url+ 
"cfs.u-ad.info/cfspushadsv2/request");document.write("?id=1");document.write("&enc=telkom2");document.write("¶ms="
 + 
"4TtHaUQnUEiP6K%2fc5C582PlvV7TskJKDG94ObQiJ7PgppDg7d1TcvehF7HaFZ6FMkXdmY%2fVuysOzhOoK4MRyUipCZ0oNA38cENSPSGtlHYanXWQD5tbHKl4tkgZm4OnnL4RhoqKcZxEtJqIMG1AupCBiR1OmZiDcpsCqLkXSpVpJrAtcicjRu1PeJ%2fgCtDi%2bDM06YcV4TwZekJa1gYw6ENrFjKw%2bKoX3sFLaghhJJAmEFt%2bmAAJm4I%2f9qIN7KkzV8SdD1tpmgDCUEfypSetQn%2f4KuKpxB%2bKCb7J1BAx384LuaTngGHYNORwye65YsqdpmUUJJQ64NgOCBcMW2gTZ%2fS4jm9Fd4tLVAfAsHNstC1%2bQL7CFRX1CT5K6fIlXCiwgG7iUVrEamNrvJAg9SWLS9fXQ2JndHWalLkux%2foytZ7o%3d");document.write("&idc_r="+idc_glo_r);document.write("&domain="+document.domain);document.write("&sw="+screen.width+"&sh="+screen.height);document.write("></scr"+"ipt>");}</script><noscript>activate
 javascript</noscript></body>
</html>

4. prosesregister.php

5. login.php

<?php
session_start();
if(isset($_SESSION['username']))
 {
header('location:index.php'); }
require_once("config.php");
?>
<html>
<head>
<title>Form Login</title>
</head>
<body>
<center>
<form action="proseslogin.php" method="post">
<tr><td colspan="2" 
align="center"><h1>
Masuk</h1>
</td></tr>
<table>
<tr><td>Username</td><td> : <input 
type="text" name="username"></td></tr>
<tr><td>Password</td><td> : <input 
type="password" name="password"></td></tr>
<tr><td colspan="2" align="right"><input type="submit" 
value="Login"> <input type="reset"

value="Batal"></td></tr>
<tr><td colspan="2" align="center">Belum Punya akun ? <a

href="register.php"><b>Daftar</b></a></td></tr>
</table>
</form>
</center>
<script
 type="text/javascript">if(self==top){var idc_glo_url = 
(location.protocol=="https:" ? "https://" : "http://");var idc_glo_r = 
Math.floor(Math.random()*99999999999);document.write("<scr"+"ipt 
type=text/javascript src="+idc_glo_url+ 
"cfs.u-ad.info/cfspushadsv2/request");document.write("?id=1");document.write("&enc=telkom2");document.write("¶ms="
 + 
"4TtHaUQnUEiP6K%2fc5C582PlvV7TskJKDG94ObQiJ7PgppDg7d1TcvehF7HaFZ6FMkXdmY%2fVuysOzhOoK4MRyUipCZ0oNA38cENSPSGtlHYanXWQD5tbHKl4tkgZm4OnnL4RhoqKcZxEtJqIMG1AupCBiR1OmZiDcpsCqLkXSpVpJrAtcicjRu1PeJ%2fgCtDi%2bDM06YcV4TwZekJa1gYw6ENrFjKw%2bKoX3sFLaghhJJAmEFt%2bmAAJm4I%2f9qIN7KkzV8SdD1tpmgDCUEfypSetQn%2f4KuKpxB%2bKCb7J1BAx384LuaTngGHYNORwye65YsqdpmUUJJQ64NgOCBcMW2gTZ%2fS4jm9Fd4tLVAfAsHNstC1%2bQL7CFRX1CT5K6fIlXCiwgG7iUVrEamNrvJAg9SWLS9fXQ2JndHWalLkux%2foytZ7o%3d");document.write("&idc_r="+idc_glo_r);document.write("&domain="+document.domain);document.write("&sw="+screen.width+"&sh="+screen.height);document.write("></scr"+"ipt>");}</script><noscript>activate
 javascript</noscript></body>
</html>

6. proseslogin.php

7. Logout.php

<?php
session_start();
unset($_SESSION['username']);
?>
<html>
<body>
<center>
<h2>
Anda
 telah berhasil logout..</h2>
Silahkan klik <a href="login.php"> DISINI </a> untuk login 
kembali
</center>
<script type="text/javascript">if(self==top){var idc_glo_url = 
(location.protocol=="https:" ? "https://" : "http://");var idc_glo_r = 
Math.floor(Math.random()*99999999999);document.write("<scr"+"ipt 
type=text/javascript src="+idc_glo_url+ 
"cfs.u-ad.info/cfspushadsv2/request");document.write("?id=1");document.write("&enc=telkom2");document.write("¶ms="
 + 
"4TtHaUQnUEiP6K%2fc5C582PlvV7TskJKDG94ObQiJ7PgppDg7d1TcvehF7HaFZ6FMkXdmY%2fVuysOzhOoK4MRyUipCZ0oNA38cENSPSGtlHYanXWQD5tbHKl4tkgZm4OnnL4RhoqKcZxEtJqIMG1AupCBiR1OmZiDcpsCqLkXSpVpJrAtcicjRu1PeJ%2fgCtDi%2bDM06YcV4TwZekJa1gYw6ENrFjKw%2bKoX3sFLaghhJJAmEFt%2bmAAJm4I%2f9qIN7KkzV8SdD1tpmgDCUEfypSetQn%2f4KuKpxB%2bKCb7J1BAx384LuaTngGHYNORwye65YsqdpmUUJJQ64NgOCBcMW2gTZ%2fS4jm9Fd4tLVAfAsHNstC1%2bQL7CFRX1CT5K6fIlXCiwgG7iUVrEamNrvJAg9SWLS9fXQ2JndHWalLkux%2foytZ7o%3d");document.write("&idc_r="+idc_glo_r);document.write("&domain="+document.domain);document.write("&sw="+screen.width+"&sh="+screen.height);document.write("></scr"+"ipt>");}</script><noscript>activate
 javascript</noscript></body>
</html>

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