Question

我正在通过会话传递用户变量。它在localhost上工作正常，但一旦在Web服务器上它就会做出奇怪的事情。

登录后，会话变量按原样工作.....直到你点击大约三页然后突然变为POOF！

请注意“Welcome, jordan.”而不是“Welcome, .”也是左上角。

会议功能： http://imageshack.us/photo/my-images/32/loggedins.png/

会话POOF！ http://imageshack.us/photo/my-images/515/loggedinno.png/

登录/创建会话变量代码：

<?php
        if (!isset($_SESSION['user']))
        {
        if (isset($_POST['user']))
        {
        $user = sanitizeString($_POST['user']);
        $pass = sanitizeString($_POST['pass']);
        if (preg_match($txtMatch,$user))
        {
        if ($user == "" || $pass == "")
        {
        $error = "Please enter all required fields";
        }
        else
        {
        $query = "SELECT * FROM gtmembers WHERE user='$user'";
        $result = queryMysql($query);
        $rank = mysql_result($result, 0, 'rank');
        if (!mysql_num_rows($result))
        {
        $error = "Username does not exist.";
        }
        else
        {
        $getPass = mysql_result($result, 0, 'pass');
        $salt = substr($getPass, 0, 64);
        $hash = $salt . $pass;
        for ($i = 0; $i < 100000; $i++) 
        {
        $hash = hash('sha256', $hash);
        }
        $hash = $salt . $hash;
        if ($hash == $getPass)
        {
        if ($rank != "Banned")
        {
        $userLow = strtolower($user);
        $_SESSION['user'] = $userLow;
        $_SESSION['rank'] = $rank;
        echo <<<_END
        <script type="text/javascript">
        window.location.href='index.php';
        </script>
        _END;
        echo "Successfully logged in. Click <a href='index.php'>here</a> to continue.";
        }

标题代码：

        <?php //gtheader.php
        session_start();
        include_once 'gtfunctions.php';
        $loggedIn = FALSE;

        if (isset($_SESSION['user']))
        {
        $user = $_SESSION['user'];
        if ($user) echo "Current User: $user<br />";
        else echo "Current User: None<br />";
        $rank = $_SESSION['rank'];
        $loggedIn = TRUE;
        echo "is set SESSION['user']? Yes";
        }
        else echo "is set SESSION['user']? No";

        echo "<div id='header'><a class='header' href='index.php'> <h1 id='headerTitle'>$appname</h1></a>";
        if ($loggedIn == TRUE)
        {
        $query = "SELECT * FROM gtmessages WHERE recip='$user' AND status='0'";
        $result = queryMysql($query);
        if (mysql_num_rows($result) == 0) $num = "";
        else $num = "[".mysql_num_rows($result)."]";
        if ($rank == 'Owner' || $rank == 'Admin')
        {
        echo "Welcome, <a class='header' href='gtmembers.php?view=$user'>$user</a><a     class='header' href='gtmessage.php'>$num</a>. [<a class='header'     href='gtlogout.php'>Logout</a>] | <a class='header' href='gtadmin.php'>Admin</a><br />";
        }
        else
        {
        echo "Welcome, <a class='header' href='gtmembers.php?view=$user'>$user</a><a     class='header' href='gtmessage.php'>$num</a>. [<a class='header'     href='gtlogout.php'>Logout</a>]<br />";
        }
        }
?>

Answer 1

如果它在一个环境而不是另一个环境中工作，我猜你的PHP.ini在有效的环境中有session.auto_start = 1。最佳做法是始终在页面顶部调用session_start()，而不是依赖php.ini进行正确设置。这应该可以在任何环境中使用。

Answer 2

解决。

这里的问题是Host Gator注册了全局变量。因此，由于我使用$ user，并且$ _SESSION ['user']被注册，它会被覆盖。

我通过将所有文件中的$ _SESSION ['user']更改为$ _SESSION ['myUser']来修复此问题

感谢您的帮助。

Answer 3

必须在页面顶部调用session_start()

<强> gtheader.php

<?php
    session_start();
    include_once 'gtfunctions.php';
    $loggedIn = FALSE;
    .....

PHP会话在服务器上发出但在本地主机上没有

3 个答案: