Index.php
<?php
session_start();
require_once('../inc/db/dbc.php');
include('login_helper.php');
?>
<!--
html form
-->
Login/Logout Links depending on session state:
<?php
if($_SESSION['valid'] == 1){
echo "<a href='logout.php'>Logout</a>";
echo 'userID '.$userid;
}
else{
echo "<a href='index.php'>Login</a>";
}
?>
check_buyer.php
<?php
session_start(); #recall session from index.php where user logged include()
require_once('login_helper.php');
/*
function validateUser()
{
session_regenerate_id (); //this is a security measure
$_SESSION['valid'] == 1;
$_SESSION['userid'] = $userid;
}
function isLoggedIn()
{
if(isset($_SESSION['valid']) && $_SESSION['valid'])
return true;
return false;
}
*/
require_once('../inc/db/dbc.php');
$connect = mysql_connect($h, $u, $p) or die ("Can't Connect to Database.");
mysql_select_db($db);
$LoginUserName = $_POST['userName'];
$LoginPassword = mysql_real_escape_string($_POST['userPass']);
//connect to the database here
$LoginUserName = mysql_real_escape_string($LoginUserName);
$query = "SELECT uID, uUPass, dynamSalt
FROM User
WHERE uUName = '$LoginUserName';";
$result = mysql_query($query);
if(mysql_num_rows($result) < 1) //no such USER exists
{
echo "Invalid Username and/or Password";
}
$ifUserExists = mysql_fetch_array($result, MYSQL_ASSOC);
$dynamSalt = $ifUserExists['dynamSalt']; #get value of dynamSalt in query above
$SaltyPass = hash('sha512',$dynamSalt.$LoginPassword); #recreate originally created dynamic, unique pass
if($SaltyPass != $ifUserExists['uUPass']) # incorrect PASS
{
echo "Invalid Username and/or Password";
}
else {
validateUser();
}
//if the user has not logged in
if(!isLoggedIn())
{
echo "<html>
<head>
<meta http-equiv='refresh' content='0'; url=index.php'>
</head>
<body>
</body>
<html>";
die();
}
?>
login_helper.php
<?php
function validateUser()
{
#session_regenerate_id (); //this is a security measure
$_SESSION['valid'] == 1;
$_SESSION['uID'] = $userid;
echo "Session made";
}
function isLoggedIn()
{
if(isset($_SESSION['valid']) && $_SESSION['valid'])
return true;
return false;
}
function logout()
{
session_start();
$_SESSION = array(); //destroy all of the session variables
session_destroy();
echo "
<html>
<head>
<meta http-equiv='refresh' content='0'; url=index.php'>
</head>
<body>
</body>
<html>";
}
?>
pwhome.php
<?php
session_start();
function isLoggedIn()
{
if(isset($_SESSION['valid']) && $_SESSION['valid'])
return true;
return false;
}
//if the user has not logged in
if(!isLoggedIn())
{
header('Location: index.php');
die();
}
?>
<?php
if($_SESSION['valid'] == 1){
echo "<a href='logout.php'>Logout</a>";
echo 'userID '.$userid;
}
else{
echo "<a href='index.php'>Login</a>";
}
?>
logout.php
<?php
require_once('login_helper.php');
logout();
?>
当前状态：当我访问index.php并使用确实正确的凭据登录时，我会不断刷新check_buyer.php
如何正确登录(从index.php(并在index.php上提供有效凭据后正确重定向到pwhome.php？
我想知道你的代码，如果你想注销并用新的会话值刷新index.php，为什么不把header( 'Location: index.php' );放在注销函数中？
因此，我认为这可能会有所帮助，修改您的logout.php:
注销.php
<?php
session_start();
function logout()
{
$_SESSION = array(); //destroy all of the session variables
session_destroy();
echo "logged out?";
header( 'Location: index.php' );
}
logout();
?>
上次编辑：
试试这个代码：
Index.php
<?php
session_start();
require_once('../inc/db/dbc.php');
?>
<!--
html form
-->
<?php
if($_SESSION['valid'] == 1){
echo "<a href='logout.php'>Logout</a>";
echo 'userID '.$userid;
}
else{
echo "<a href='index.php'>Login</a>";
}
?>
check_buyer.php
<?php
session_start(); #recall session from index.php where user logged include()
require_once('../inc/db/dbc.php');
$connect = mysql_connect($h, $u, $p) or die ("Can't Connect to Database.");
mysql_select_db($db);
$LoginUserName = $_POST['userName'];
$LoginPassword = mysql_real_escape_string($_POST['userPass']);
//connect to the database here
$LoginUserName = mysql_real_escape_string($LoginUserName);
$query = "SELECT uID, uUPass, dynamSalt
FROM User
WHERE uUName = '$LoginUserName';";
$result = mysql_query($query);
if(mysql_num_rows($result) < 1) //no such USER exists
{
echo "Invalid Username and/or Password";
}
$ifUserExists = mysql_fetch_array($result, MYSQL_ASSOC);
$dynamSalt = $ifUserExists['dynamSalt']; #get value of dynamSalt in query above
$SaltyPass = hash('sha512',$dynamSalt.$LoginPassword); #recreate originally created dynamic, unique pass
if($SaltyPass != $ifUserExists['uUPass']) # incorrect PASS
{
echo "Invalid Username and/or Password";
}
else {
validateUser();
}
//if the user has not logged in
if(!isLoggedIn())
{
header('Location: index.php');
die();
}
function validateUser()
{
session_regenerate_id (); //this is a security measure
$_SESSION['valid'] = 1;
$_SESSION['uID'] = $userid;
}
function isLoggedIn()
{
if(isset($_SESSION['valid']) && $_SESSION['valid'])
return true;
return false;
}
?>
logout.php
<?php
session_start();
function logout()
{
$_SESSION = array(); //destroy all of the session variables
session_destroy();
header( 'Location: index.php' );
}
logout();
?>
而不是
header('Location: index.php');
尝试使用meta refresh进行页面转发。关闭php块后，添加一些HTML代码，如；
<html>
<head>
<meta http-equiv="refresh" content="0; url=index.php">
</head>
<body>
</body>
<html>
当您使用header()函数进行页面转发时，有时会话无法正常工作。