Question

我有一个非常奇怪的退出问题。

工作流程：

登录页面
主视图（选择任务）
在后台准备任务的任务初始化
任务视图（提交一些答案并点击提交）
数据库中的更新。初始化下一行（转到第3行）

我正在使用Session和cookies来登录。

注销用户尝试登录后，问题只发生一次他成功地达到了他的主视图（每个用户都不同）
成功选择任务，进入任务视图，输入提交然后，他收到＆＃34;退出，而不是下一页，请登录＆＃34;声明，意思是我的＆＃34; checkUser＆＃34;没有找到一个会话或一个cookie并踢出他。当他下次登录时，一切正常。

我不明白从哪里开始寻找这个问题。

我的登录页面相关代码：

session_start();
 $error_msg = "";
//Do you have Session or cookies?
if (isset($_SESSION['user_id']) && isset( $_SESSION['user_role'])) 
{
    If ($_SESSION['user_role']=='DM')
        header('Location: DMView.php');
    else if ($_SESSION['user_role']=='Vendor')
        header('Location: VendorView.php');
    exit;
}
 //If you dont - Did you enter sumbit?
 if (!isset($_SESSION['user_id']) && isset($_POST['submit'])) 
 {
      // Grab the user-entered log-in data
  $user_username = mysqli_real_escape_string($con, trim($_POST['username']));
  $user_password = mysqli_real_escape_string($con, trim($_POST['password']));

  if (!empty($user_username) && !empty($user_password)) {
    // Look up the username and password in the database
    $query = "SELECT * FROM Users WHERE UserName = '$user_username' AND UserPassword = SHA('$user_password')";
    $data = mysqli_query($con, $query);

    if (mysqli_num_rows($data) == 1) {
      // The log-in is OK so set the user ID and username session vars (and cookies), and redirect to the home page
      $row = mysqli_fetch_array($data);
      $_SESSION['user_id'] = $row['UserID'];
      $_SESSION['username'] = $row['UserName'];
      setcookie('user_id', $row['UserID'], time() + (60 * 60 * 24 * 30));    // expires in 30 days
      setcookie('username', $row['UserName'], time() + (60 * 60 * 24 * 30));  // expires in 30 days
      $user_role = $row['UserRole'];
      $_SESSION['user_role'] = $row['UserRole'];
      setcookie('user_role', $row['UserRole'], time() + (60 * 60 * 24 * 30));  // expires in 30 days
      $_SESSION['user_group'] = $row['UserGroup'];
      setcookie('user_group', $row['UserGroup'], time() + (60 * 60 * 24 * 30));  // expires in 30 days
        If ($user_role=='DM')
            header('Location: DMView.php');
        else
            header('Location: VendorView.php');
    }
    else {
      // The username/password are incorrect so set an error message
      $error_msg = 'Sorry, you must enter a valid username and password to log in.';
    }
  }
  else {
    // The username/password weren't entered so set an error message
    $error_msg = 'Sorry, you must enter your username and password to log in.';
  }
}

我的checkUser文件：

if (session_status() == PHP_SESSION_NONE) 
{
    session_start();
}
  // If the session vars aren't set, try to set them with a cookie
  if (!isset($_SESSION['user_id'])) {
if (isset($_COOKIE['user_id']) && isset($_COOKIE['username'])) {
  $_SESSION['user_id'] = $_COOKIE['user_id'];
  $_SESSION['username'] = $_COOKIE['username'];
  $_SESSION['user_role']=$_COOKIE['user_role'];
  $_SESSION['user_group'] = $_COOKIE['user_group'];
}
 }

   if ((!isset($_SESSION['user_id'])) )  {
echo '<p>Please <a href="index.php">log in</a> to access this page.</p>';

exit();}

和我的退出文件：

// If the user is logged in, delete the session vars to log them out
  session_start();
  if (isset($_SESSION['user_id'])) {
// Delete the session vars by clearing the $_SESSION array
$_SESSION = array();

    // Delete the session cookie by setting its expiration to an hour ago (3600)
if (isset($_COOKIE[session_name()])) {
  setcookie(session_name(), '', time() - 3600);
}

    // Destroy the session
session_destroy();
  }
    // Delete the user ID and username cookies by setting their expirations to an hour ago (3600)
  setcookie('user_id', '', time() - 3600);
  setcookie('username', '', time() - 3600);

  // Redirect to the home page

 header('location: index.php');

提交文件（仅用一个查询简化）：

<?php
require('connection.php');
require ('checkUser.php');


$task=$_POST['task_id'];
$row=$_POST['row_id'];
if( $_POST['answer']==1 )
{
    $query="UPDATE ecnmatchingdetails SET RowStatus=2,Agent='".$uName."' , VendorAnswer='Yes', VendorComment='".$_POST['comments']."' , end_tag='".date("Y-m-d H:i:s")."' where TaskID=".$task." and RowId=".$row;
    mysqli_query($con, $query);
}
else...
}

if( isset( $_POST['answer'])) {
    header( 'Location: http://dub-entas-124/tool/TT/WorkOnTask.php?id='.$task . '&start_task=0&prevID='.$Ebay_PRD_ID);
    exit();
}
?>

Answer 1

如果我猜你的问题是正确的，您正在注册cookie并在您正在检查的同一页面中，存储在客户端的cookie，只有在重新加载后或在其他页面上才可用...

Answer 2

我有一段时间这个问题，到处都是。

我所做的一切都是为了解决这个问题，在我的php.ini

中进行了修改

session.cookie_domain = ".example.com"

将它放在session_start（）之前，它应位于PHP的最顶端

ini_set('session.cookie_domain', '.example.com' );
session_start();

PHP，MySQL - login \ logout问题，仅在第二次尝试后登录

2 个答案: