Membuat Halaman Register, Login Dan Logout

MEMBUAT HALAMAN REGISTER, LOGIN DAN LOGOUT
1. Buat database untuk user

Contoh
CREATE TABLE `web`.ùser` (
ìd_user` INT( 4 ) NOT NULL AUTO_INCREMENT PRIMARY KEY ,

`nama` VARCHAR( 100 ) NOT NULL ,
ùsername` VARCHAR( 100 ) NOT NULL ,
`password` VARCHAR( 100 ) NOT NULL
) ENGINE = MYISAM
2. Buat file koneksi database

Contoh
<?
mysql_connect("localhost","root","170786");
mysql_select_db("web");
?>
Simpan dengan nama config.php

Keterangan
 localhost = nama host
 root = username MySQL
 170786 = password MySQL
 Web = nama database
3. Buat file index yang berisi form untuk login dan tombol untuk registrasi
Contoh
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Administrator</title>
<style type="text/css">

</style>
</head>
<body>
<table align="center" width="790" border="0">
<tr>
<td width="16%" colspan="2" valign="top">
<p><a href="daftaruser.php">Daftar Anggota</a></p>
<form name="form" id="LoginForm" method="post" action="cek.php">
<table align="center" width="50%" border="0">
<tr>
<td colspan="3"><div align="left"><strong>HALAMAN LOGIN ADMINISTRATOR</strong></div></td>
</tr>
<tr>
<td width="32%" valign="top" rowspan="3"><img src="admin.png" width="123" height="146" /></td>
<td width="25%" valign="top">Username</td>
<td width="43%" valign="top"><input type="text" name="username" id="username" /></td>
</tr>
<tr>
<td valign="top">Password</td>
<td valign="top"><input type="password" name="password" id="password" /></td>
</tr>
<tr>
<td valign="top"> </td>
<td valign="top"><input type="submit" name="login" id="login" value="Masuk" /></td>
</tr>
</table>
</form>
<p> </p></td>
</tr>
</table>
</body>
</html>
Simpan dengan nama index.html
4. Buat file pendaftaran user

Contoh
<head>
</head>
<body>
<table width="790" border="0" align="center">
<tr>
<td><a href="index.html"><< Back</a><br>
<br>
<h4>FORM DAFTAR USER</h4>
<br>
<form method="post" action="prosesuser.php">
<pre>
Nama : <input name="nama" type=text size="20" ><br>
Username : <input name="username" type=text size="20" ><br>
Password : <input name="password" type=password size="20" ><br>
<input type=submit value=Simpan name="simpan"> <input type=reset value=Batal>

</pre>
</form>
</td>
</tr>
</table>
Simpan file dengan nama daftaruser.php

5. Buat file pemrosesan pendaftaran user
Contoh
<?php
include("config.php");
if($_POST['simpan']) {
$nama = $_POST['nama'];
$username = $_POST['username'];
$password = $_POST['password'];
if(!$nama) {
?><script language="JavaScript">alert('Nama Tidak Boleh Kosong');
document.location='daftaruser.php'</script><?
}elseif(!$username) {
?><script language="JavaScript">alert('Username Tidak Boleh Kosong');
}elseif(!$password) {
?><script language="JavaScript">alert('Password Tidak Boleh Kosong');
}else {
mysql_query("INSERT INTO user VALUES ('','$nama','$username','$password')");
?><script language="JavaScript">alert('User Berhasil Ditambahkan');
document.location='index.html'</script><?
}
}
?>
Simpan file dengan nama prosesuser.php
6. Buat file untuk pemrosesan login user

Contoh
<?php
session_start();
#**************** koneksi ke mysql *****************#
include "config.php";
#jika ditekan tombol login

if(isset($_POST['login'])) {
$sql = mysql_query("SELECT * FROM user WHERE username='$username' && password='$password'");
$num = mysql_num_rows($sql);
if($num==1) {
// login benar //
$_SESSION['user'] = $username;
$_SESSION['passwd'] = $password;
?><script language="JavaScript">alert('Selamat Datang di Halaman Administrator');
document.location='home.php'</script><?
} else {
// jika login salah //
?><script language="JavaScript">alert('Username atau password Anda salah');
document.location='index.html'</script><?
}
}
?>
Simpan dengan nama file cek.php

7. Buat halaman home, digunakan apabila login sukses
Contoh
<?
session_start();
//periksa apakah user telah login atau memiliki session
if(!isset($_SESSION["user"]) || !isset($_SESSION["passwd"])) {
?><script language="JavaScript">alert("Anda belum login. Silahkan login dulu");
document.location="index.html"</script><?
} else {
?>
<?
$halaman=$_SERVER['PHP_SELF'];
?>
<head>
</head>
<body>
<tr>
<td width="20%" valign="top"> </td>
<td width="80%" valign="top" bgcolor="#00FF00"><strong>>> HALAMAN
ADMINISTRATOR</strong></td>
</tr>
<tr>
<td valign="top"><a href="home.php">Home</a><br />
<a href="tamu.php">Buku Tamu</a><br />
<a href="user.php">User</a><br />
<a href="logout.php">Logout</a></td>
<td valign="top"><p>Selamat datang </p>
</td>
</tr>
</table>
</body>
</html>
<? } ?>
Simpan dengan nama file home.php

8. Buat halaman untuk menampilkan daftar user yang telah disimpan
Contoh
<?
session_start();
} else {
?>
<?
?>
<head>
</head>
<body>
<tr>
<td width="80%" valign="top" bgcolor="#00FF00"><strong>>> HALAMAN
ADMINISTRATOR</strong></td>
</tr>
<tr>
<td valign="top"><p>
<?
$muncul=mysql_query("select * from user");
$jumlah=mysql_num_rows($muncul);
echo "DAFTAR USER <br />";
echo "<table border=1 width=100%>";
echo "<tr align=center bgcolor=#003399>
<td width=5%><font color=#FFFFFF size=2 face=Times New Roman>No</td>
<td width=40%><font color=#FFFFFF size=2 face=Times New Roman>Nama</td>
<td width=15%><font color=#FFFFFF size=2 face=Times New Roman>Username</td>
<td width=15%><font color=#FFFFFF size=2 face=Times New Roman>Password</td>
<td width=35%><font color=#FFFFFF size=2 face=Times New Roman>Action</td></tr>";
$i=1;
while($data=mysql_fetch_array($muncul))
{
echo "<tr><td align=center>$i</td>
<td>$data[nama]</td>
<td>$data[username]</td>
<td align=left>$data[password]</td>";
//buat link untuk edit dan hapus data
echo "<td align=center> <a href=edituser.php?id=$data[id_user]>Edit</a> ||
<a href=hapususer.php?id=$data[id_user]>Hapus</a></td></td></tr>";
$i++;
}
Echo "</table>";
?>
</p></td>
</tr>
</table>
</body>
</html>
<? } ?>
Simpan dengan nama file user.php
9. Buat halaman edit user

Contoh
<?
session_start();
} else {
?>
<?
$id=$_GET['id'];
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-
transitional.dtd">
<head>
</head>
<body>
<tr>
<td width="80%" valign="top" bgcolor="#00FF00"><strong>>> HALAMAN ADMINISTRATOR</strong></td>
</tr>
<tr>
<td valign="top"><p>
<?
$query = "SELECT * FROM user WHERE id_user='$id'";
$hasil = mysql_query($query);
while($row = mysql_fetch_array($hasil)){
$nama=$row['nama'];
$username=$row['username'];
$password=$row['password'];
}
?>
<a href="user.php"><< Back</a>
<form action="prosesedit.php" method="post">
<pre>
Nama : <input type=text name=nama value="<? echo $nama; ?>"><br>
Username : <input type=text name=username value="<? echo $username; ?>"><br>
Password : <input type=password name=password value="<? echo $password; ?>"><br>
<input type="submit" name="simpan" value="Simpan">

</pre>
</form>
</p></td>
</tr>
</table>
</body>
</html>
<? } ?>
Simpan dengan nama file edituser.php
10. Buat file pemrosesan edit user

Contoh
<?php
include("config.php");
$id=$_GET['id'];
if($_POST['simpan']) {
$nama = $_POST['nama'];
if(!$nama) {
?><script language="JavaScript">alert('Nama Tidak Boleh Kosong');
document.location='user.php'</script><?
}elseif(!$username) {
?><script language="JavaScript">alert('Username Tidak Boleh Kosong');
}elseif(!$password) {
?><script language="JavaScript">alert('Password Tidak Boleh Kosong');
}else {
mysql_query("UPDATE user set nama='$nama', username='$username', password='$password' where
id_user='$id'");
?><script language="JavaScript">alert('User Berhasil Ubah');
}
}
?>
Simpan dengan nama file prosesedit.php

11. Buat file untu menghapus user
Contoh
<?
$id=$_GET['id'];
$r=mysql_query("DELETE FROM user where id_user='$id'");
if($r) {
?><script language="JavaScript">alert('Data Berhasil Dihapus');
};
?>
Simpan dengan nama file hapususer.php
12. Buat file untuk logout

Contoh
<?
session_start();
?><script language="JavaScript"> document.location="index.html"</script><?
} else {
unset($_SESSION);
session_destroy();
?><script language="JavaScript"> document.location="index.html"</script><?
}
?>
Simpan dengan nama file logout.php

Membuat Halaman Register, Login Dan Logout

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Membuat Halaman Register, Login Dan Logout

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MEMBUAT HALAMAN REGISTER, LOGIN DAN LOGOUT

1. Buat database untuk user

`id_user` INT( 4 ) NOT NULL AUTO_INCREMENT PRIMARY KEY ,

2. Buat file koneksi database

Simpan dengan nama config.php

Simpan dengan nama index.html

4. Buat file pendaftaran user

<input type=submit value=Simpan name="simpan"> <input type=reset value=Batal>

Simpan file dengan nama daftaruser.php

Simpan file dengan nama prosesuser.php

6. Buat file untuk pemrosesan login user

#jika ditekan tombol login

Simpan dengan nama file cek.php

Simpan dengan nama file home.php

Simpan dengan nama file user.php

9. Buat halaman edit user

<input type="submit" name="simpan" value="Simpan">

Simpan dengan nama file edituser.php

10. Buat file pemrosesan edit user

Simpan dengan nama file prosesedit.php

Simpan dengan nama file hapususer.php

12. Buat file untuk logout

Simpan dengan nama file logout.php

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