Question

我一直在尝试修复此代码很长一段时间了，我真的不知道它有什么问题。当你点击消息时你会被带到这个页面而它显示的是你没有正确的权限当我登录到正确的帐户时查看这个，为什么这样做？提前谢谢

    <?php
include('config.php');
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
    <head>
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
        <link href="<?php echo $design; ?>/style.css" rel="stylesheet" title="Style" />
        <title>Read a PM</title>
    </head>
    <body>
        <div class="header">
            <a href="<?php echo $url_home; ?>"><img src="<?php echo $design; ?>/images/logo.png" alt="Members Area" /></a>
        </div>
<?php
//We check if the user is logged
if(isset($_SESSION['username']))
{
//We check if the ID of the discussion is defined
if(isset($_GET['id']))
{
$id = intval($_GET['id']);
//We get the title and the narators of the discussion
$req1 = mysql_query('select title, user1, user2 from pm where id="'.$id.'" and id2="1"');
$dn1 = mysql_fetch_array($req1);
//We check if the discussion exists
if(mysql_num_rows($req1)==1)
{
//We check if the user have the right to read this discussion
if($dn1['user1']==$_SESSION['userid'] or $dn1['user2']==$_SESSION['userid'])
{
//The discussion will be placed in read messages
if($dn1['user1']==$_SESSION['userid'])
{
    mysql_query('update pm set user1read="yes" where id="'.$id.'" and id2="1"');
    $user_partic = 2;
}
else
{
    mysql_query('update pm set user2read="yes" where id="'.$id.'" and id2="1"');
    $user_partic = 1;
}
//We get the list of the messages
$req2 = mysql_query('select pm.timestamp, pm.message, users.id as userid, users.username, users.avatar from pm, users where pm.id="'.$id.'" and users.id=pm.user1 order by pm.id2');
//We check if the form has been sent
if(isset($_POST['message']) and $_POST['message']!='')
{
    $message = $_POST['message'];
    //We remove slashes depending on the configuration
    if(get_magic_quotes_gpc())
    {
        $message = stripslashes($message);
    }
    //We protect the variables
    $message = mysql_real_escape_string(nl2br(htmlentities($message, ENT_QUOTES, 'UTF-8')));
    //We send the message and we change the status of the discussion to unread for the recipient
    if(mysql_query('insert into pm (id, id2, title, user1, user2, message, timestamp, user1read, user2read)values("'.$id.'", "'.(intval(mysql_num_rows($req2))+1).'", "", "'.$_SESSION['userid'].'", "", "'.$message.'", "'.time().'", "", "")') and mysql_query('update pm set user'.$user_partic.'read="yes" where id="'.$id.'" and id2="1"'))
    {
?>
<div class="message">Your message has successfully been sent.<br />
<a href="read_pm.php?id=<?php echo $id; ?>">Go to the discussion</a></div>
<?php
    }
    else
    {
?>
<div class="message">An error occurred while sending the message.<br />
<a href="read_pm.php?id=<?php echo $id; ?>">Go to the discussion</a></div>
<?php
    }
}
else
{
//We display the messages
?>
<div class="content">
<h1><?php echo $dn1['title']; ?></h1>
<table class="messages_table">
    <tr>
        <th class="author">User</th>
        <th>Message</th>
    </tr>
<?php
while($dn2 = mysql_fetch_array($req2))
{
?>
    <tr>
        <td class="author center"><?php
if($dn2['avatar']!='')
{
    echo '<img src="'.htmlentities($dn2['avatar']).'" alt="Image Perso" style="max-width:100px;max-height:100px;" />';
}
?><br /><a href="profile.php?id=<?php echo $dn2['userid']; ?>"><?php echo $dn2['username']; ?></a></td>
        <td class="left"><div class="date">Sent: <?php echo date('m/d/Y H:i:s' ,$dn2['timestamp']); ?></div>
        <?php echo $dn2['message']; ?></td>
    </tr>
<?php
}
//We display the reply form
?>
</table><br />
<h2>Reply</h2>
<div class="center">
    <form action="read_pm.php?id=<?php echo $id; ?>" method="post">
        <label for="message" class="center">Message</label><br />
        <textarea cols="40" rows="5" name="message" id="message"></textarea><br />
        <input type="submit" value="Send" />
    </form>
</div>
</div>
<?php
}
}
else
{
    echo '<div class="message">You dont have the rights to access this page.</div>';
}
}
else
{
    echo '<div class="message">This discussion does not exists.</div>';
}
}
else
{
    echo '<div class="message">The discussion ID is not defined.</div>';
}
}
else
{
    echo '<div class="message">You must be logged to access this page.</div>';
}
?>
        <div class="foot"><a href="list_pm.php">Go to my personnal messages</a> - <a href="http://www.webestools.com/">Webestools</a></div>
    </body>
</html>

Answer 1

需要查看要调试的登录代码。但是错误消息“您必须登录才能访问此页面”＃39;表示您已登录时尚未设置session['username']。还要确保已启用会话。

为什么这个PHP消息代码不起作用？

1 个答案: