Buyur login sayfasini yeniden yazdim :
<?php
ob_start();
session_start();
include("../config.php");
$giris=$_SESSION["giris"];
$yetki=$_SESSION["yetki"];
if(!empty($giris) && $yetki=="1"){
header("Location:home.php");
exit();
}
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="robots" content="noindex,nofollow,nosnippet,noodp,noarchive,noimageindex">
<link rel="stylesheet" media="screen,projection" type="text/css" href="css/reset.css" />
<link rel="stylesheet" media="screen,projection" type="text/css" href="css/main.css" />
<!--[if lte IE 6]><link rel="stylesheet" media="screen,projection" type="text/css" href="css/main-ie6.css" /><![endif]-->
<link rel="stylesheet" media="screen,projection" type="text/css" href="css/style.css" />
<link rel="stylesheet" media="screen,projection" type="text/css" href="css/mystyle.css" />
<title>Yönetim Paneli</title>
</head>
<body>
<div id="main">
<div id="content" class="box" align="center">
<br><br><br><br><br><br>
<a href="index.php"><img src="design/logo.png" border="0" /></a>
<br><br><br><br><br><br>
<?php
if($_POST){
$username=trim(strip_tags(mysql_real_escape_string($_POST["username"])));
$password=trim(strip_tags(mysql_real_escape_string($_POST["password"])));
if(empty($username) || empty($password)){
echo '<p class="msg error" style="width:300px;"><b>Alanlari bos geçemezsiniz!</b></p><br>';
}else{
$password2=md5($password);
$count=mysql_num_rows(mysql_query("SELECT * FROM administrator WHERE username='$username' AND password='$password2'"));
if($count!=0){
$row=mysql_fetch_assoc(mysql_query("SELECT * FROM administrator WHERE username='$username' AND password='$password2'"));
$rowusername=$row["username"];
$rowpassword=$row["password"];
$rowaccess=$row["yetki"];
$_SESSION["giris"]=$rowusername;
$_SESSION["yetki"]=(int)$rowaccess;
echo '<p class="msg done" style="width:300px;"><b>Giris yapildi.</b></p><br>';
echo '<script language="javascript">location.href="home.php";</script>';
}else{
echo '<p class="msg warning" style="width:300px;"><b>Kullanici Adi yada Sifre Hatali!</b></p><br>';
}
}
}
?>
<form method="post">
<dl>
<dt><label for="email">Kullanici Adi</label></dt>
<dd><input type="text" name="username" class="dsaciklama" /></dd>
</dl>
<dl>
<dt><label for="password">Sifre</label></dt>
<dd><input type="password" name="password" class="dsaciklama" /></dd>
</dl>
<dl>
<input type="submit" name="gonder" value="Giris Yap" style="background: #E6E6E6; border: 1px solid #ccc; padding: 3px 7px; border-radius: 3px; color: #000; cursor:pointer" />
</dl>
</form>
<br><br><br><br>
</div>
</div>
<hr class="noscreen" />
<div id="footer" class="box">
<p class="f-left"><a href="http://www.site.com/" target="_blank">Site.com</a></p>
</div>
</body>
</html>Kontrol yapmak icin :
ob_start();
session_start();
$giris=$_SESSION["giris"];
$yetki=$_SESSION["yetki"];
if(!empty($giris) && $yetki=="1"){
include("../config.php");
}else{
header("Location:404.html");
exit();
} 
