联系表格问题 - 我确实收到消息，但没有内容（空白页）

Question

我在现场有一个曾经可以使用的联系表，但从最近几个月开始就停止了正常工作。这可能是由于一些我无法弄清楚的编码错误。发生的情况是我收到了发送的消息，但它们完全是空白的，根本没有内容。可能是什么问题？

我先附上前端页面，再附上后端。

contact.php 前端代码示例：-

<div id="content">
     <h2 class="newitemsxl">Contact Us</h2>

<div id="contactcontent">
        <form method="post" action="contactus.php">
Name:<br />
<input type="text" name="Name" /><br />
Email:<br />
<input type="text" name="replyemail" /><br />
Your message:<br />
<textarea name="comments" cols="40" rows="4"></textarea><br /><br />

<?php require("ClassMathGuard.php"); MathGuard::insertQuestion(); ?><br /> 
  <input type="submit" name="submit" value="Send" />
* Refresh browser for a different question. :-)

</form>
</div>

</div>

contactus.php 示例（后端代码）：-

<?php

/* first we need to require our MathGuard class */
require ("ClassMathGuard.php");
/* this condition checks the user input. Don't change the condition, just the body within the curly braces */
if (MathGuard :: checkResult($_REQUEST['mathguard_answer'], $_REQUEST['mathguard_code'])) {
    $mailto="questions@stylishgoods.com";
$pcount=0;
$gcount=0;
$subject = "A Stylish Goods Enquiry";
$from="DO_NOT_reply@stylishgoods.com";
echo ("Great, you're message has been sent !"); //insert your code that will be executed when user enters the correct answer
} else {
    echo ("Sorry, wrong answer, please go back and try again !"); //insert your code which tells the user he is spamming your website
}


while (list($key,$val)=each($HTTP_POST_VARS))
{
$pstr = $pstr."$key : $val \n ";
++$pcount;
}
while (list($key,$val)=each($HTTP_GET_VARS))
{
$gstr = $gstr."$key : $val \n ";
++$gcount;
}
if ($pcount > $gcount)
{
$comments=$pstr;
mail($mailto,$subject,$comments,"From:".$from);
}
else
{
$comments=$gstr;
mail($mailto,$subject,$comments,"From:".$from);
}
?>

Answer 1

服务器上可能有 PHP 升级，$HTTP_POST_VARS 已被弃用。 使用$_POST 和$_GET。

Answer 2

你的 php 版本有没有可能发生了变化？在 php5 中，HTTP_POST_VARS 数组不再可用。

在开始 while 循环之前，您可以尝试以下方法来获取您的值：

$HTTP_POST_VARS   = !empty($HTTP_POST_VARS)   ? $HTTP_POST_VARS   : $_POST;