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function_login.php    µÇ¼ µÇ³öº¯Êý
PHP code:

<?php
function login($user,$pwd){
$db=mysql_connect("127.0.0.1","root","" );
if(!$db) {echo "Êý¾Ý¿âÁ´½Óʧ°Ü"; exit();}
mysql_select_db("blog");
mysql_query("set names gb2312");
$user=trim($user);
$pwd=trim($pwd);
$user=htmlspecialchars($user);
$pwd=htmlspecialchars($pwd);
$hel=mysql_query("select id from users where user='$user' and pwd='$pwd'");
if (mysql_num_rows($hel))
return true;
else
return false;
}
function logout(){
session_start();
unset($_SESSION['mp3']);
echo "<script>alert('µÇ³ö³É¹¦');window.navigate('login.php')</script>";
}
if(@$_GET["act"]=='logout')
logout();
?>



config.php  ¼ì²éµÇ¼״̬º¯Êý
PHP code:

<?php
function logining(){
session_start();
if(!@$_SESSION["mp3"])
echo '<script>window.navigate("login.php");</script>';
}
?>



login.php µÇ¼Ö÷Îļþ
PHP code
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