在这个网站的帮助下,我现在的登录脚本基本上正常工作,但是当我尝试在限制页面上检查完整代码的会话时会出现问题,如下所示。
登录脚本本身
<?php
function validateUser()
{
session_regenerate_id (); //this is a security measure
$_SESSION['valid'] = 1;
$_SESSION['userid'] = $userid;
}
?>
<?php
ob_start(); // Start output buffering
error_reporting(E_ALL & ~E_NOTICE);
ini_set('display_errors', TRUE);
ini_set('display_startup_errors', TRUE);
session_start(); //must call session_start before using any $_SESSION variables
$username = $_POST['username'];
$password = $_POST['password'];
//connect to the database here
$hostname_PropSuite = "localhost";
$database_PropSuite = "propsuite";
$username_PropSuite = "root";
$password_PropSuite = "root";
$PropSuite = mysql_pconnect($hostname_PropSuite, $username_PropSuite, $password_PropSuite) or trigger_error(mysql_error(),E_USER_ERROR);
mysql_select_db($database_PropSuite, $PropSuite);
$username = mysql_real_escape_string($username);
$query = "SELECT password, salt FROM admin_users WHERE username = '$username';";
$result = mysql_query($query) or die(mysql_error());
if(mysql_num_rows($result) < 1) //no such user exists
{
header('Location: http://localhost/PropSuite/index.php?login=fail');
die();
}
$userData = mysql_fetch_array($result, MYSQL_ASSOC);
$hash = hash('sha256', $userData['salt'] . hash('sha256', $password) );
if($hash != $userData['password']) //incorrect password
{
header('Location: http://localhost/PropSuite/index.php?login=fail');
die();
}
else
{
validateUser(); //sets the session data for this user
}
//redirect to another page or display "login success" message
header('Location: http://localhost/PropSuite/main');
die()
//redirect to another page or display "login success" message
?>
我试图限制的页面。
<?php
error_reporting(E_ALL & ~E_NOTICE);
ini_set('display_errors', TRUE);
ini_set('display_startup_errors', TRUE);
function isLoggedIn()
{
if(isset($_SESSION['valid']) && $_SESSION['valid'])
return true;
return false;
}
//if the user has not logged in
if(!isLoggedIn())
{
header('Location: http://localhost/PropSuite/index.php');
die();
}
//page content follows
?>
当我按下登录时会发生什么,它会将我带回登录页面,所以它似乎会通过登录脚本然后当它到达主页时将我扔回登录页面。我很困惑: - (
提前感谢您的帮助
答案 0 :(得分:1)
在您尝试限制的页面中,我看不到session_start
<?php
session_start();
error_reporting(E_ALL & ~E_NOTICE);
ini_set('display_errors', TRUE);
ini_set('display_startup_errors', TRUE);
.....
?>
顺便在你的其他剧本中你应该写这个
<?php
.....
$username = isset($_POST['username'])?$_POST['username']:'';
$password = isset($_POST['password'])?$_POST['password']:'';
...
?>