PHP Session变量问题

Question

My issue I am encountering is that we are using PHP session variables for our project. 我遇到的问题是我们正在为项目使用PHP会话变量。 The way that the variable is stored for username is that when the user logs in with the username that username is stored in a session variable. 为用户名存储变量的方式是，当用户使用用户名登录会话变量时，用户名登录。 I need to get that username's id from the database and use it on another page from the user that is logged in. I can't even get the username to be printed out from the session variable. 我需要从数据库中获取该用户名的id，并在登录用户的另一个页面上使用它。我甚至无法从会话变量中打印出用户名。 I have been struggling very much on this and have no idea where to go with this and I would greatly appreciate the help. 我一直在努力奋斗，不知道该去哪里，我非常感谢你的帮助。 I added comments on the second file. 我在第二个文件上添加了评论。 I also was not sure if I need to add session_start(); 我也不确定是否需要添加session_start（）; on every file that I want to use session variable? 在每个我想使用会话变量的文件？ Once I gather a variable in one file can I access it on the the other file? 一旦我在一个文件中收集变量，我可以在另一个文件中访问它吗？

This file is the log in file: 该文件是登录文件：

<body>
<h1>Login</h1>
<form action="VerifyUser.php" method="post">
Username: <input type="text" name="userName"><br>
Password: <input type="password" name="pwd"><br><br>
<input type="submit" name="loginButton" value="Login"><br><br>
<a href="forgotPassword.php">
Forgot Password? Click Here!</a>
<a href="Registration.php"><br><br>
Need to Register? Click Here!</a>
</form>
</body>

This is the file it posts to on verify user: (When I log in the new page only prints "Working" from the the echo prior to the extract POST 这是它在验证用户时发布的文件:(当我登录新页面时，仅从提取POST之前的echo打印“Working”

<?php
    require_once('dbBaseDao.php');
    require_once('dbUserDao.php');
    $userDao = new dbUserDao();
    echo "<p>Working...</p>";
    extract($_POST);
    if( $userDao->{'verifyUser'}($userName, $pwd))
    {
        session_start();
        $_SESSION['userName'] = $userName;
        $result = $userDao->{'getUserByWhere'}("username ='" . $userName . "'");
        $user = mysql_fetch_array($result, MYSQL_ASSOC);

            print $userName;      //This is not printing

        $_SESSION['userId'] = $user['userId'];    //I think to get this I need 
//to query the database for whatever the username is here it is equal to that 
//in the database and get the userId from that, but I have no idea how to do this. 


        header('Refresh: 1;url=LoggedIn.php');
        exit();
    }
    else
    {
        header('Refresh: 1;url=LogIn.php');
        exit();
    }
?>

My code: This is where I need to get the userId so that when I use the INSERT TO query I can send the data based on what userId selected the game. 我的代码：这是我需要获取userId的地方，这样当我使用INSERT TO查询时，我可以根据userId选择游戏发送数据。

<?php include('header.php'); ?>

<?php

  require_once('dbBaseDao.php');
  require_once('dbUserDao.php');
  require_once('dbBotDao.php');

  $userDao = new dbUserDao();
  $botDao = new dbBotDao();

  session_start();
  $userID = $_SESSION['userId'];
  print $userID;


/*
* Description of code below: This code checks the name checkbox[] from the form in UpcomingGames.php for any
* selected games made by clicking on the checkbox and submitting the form. The first echo actually prints all
* the games selected by the user from UpcomingGames.php.
*/

 if(!empty($_POST['checkbox']))
  {
    foreach($_POST['checkbox'] as $check) 
    {
           echo "</br>";
           echo ($check);
           $userID = 2;

           $sql= "INSERT INTO UserPicks (userID, game) VALUES ('$userID','$check')";
           $result = mysql_query($sql);
           if (!$result) {
               $message  = 'Invalid query: ' . mysql_error() . "\n";
               $message .= 'Whole query: ' . $sql;
               die($message);
            }
    }
    echo "</br>";
    echo "</br>";
    echo "You predicted ";
    echo sizeof($_POST['checkbox']);
    echo " games to have upsets";
    echo "</br>";
    echo "</br>";
  }
?>

Answer 1

I also was not sure if I need to add session_start(); 我也不确定是否需要添加session_start（）; on every file that I want to use session variable? 在每个我想使用会话变量的文件？

Yes, you have to use session_start(); 是的，你必须使用session_start(); on every page you need to get access into those sessions. 在每个页面上，您需要访问这些会话。

PHP Session变量问题

问题描述

1 个解决方案

解决方案1
3 2014-04-15 20:14:19

PHP Session变量问题

问题描述

1 个解决方案

解决方案1 3 2014-04-15 20:14:19

解决方案1
3 2014-04-15 20:14:19