用php定制404错误页面，并发信给管理员的代码

网络整理 - 08-26

　　如果您的用户找不到他要的页面，如何给他一个友好的答复，并且你也知道发生了这个错误呢，看看下面这段程序,是用来定制404错误页面和发通知给网管的好东西。---teaman翻译整理

　　以下为引用的内容：

404 没有找到页面";
echo "";
echo "404 对不起，我没有找到您要求的页面";
echo "";
echo "奥索网管提醒您,您要求的页面 $docroot$REQUEST_URI, doesn't exist";
echo " on this server.";
if ($reportlevel != 0)
   {
   echo "";
   echo "错误信息已经发送到奥索网管手中.";
   }
return;
  }
# EMAIL处理函数
function send_email()
  {
# Request access to the global variables we need
global $REQUEST_URI, $HTTP_REFERER, $emailaddress, $REMOTE_ADDR, $docroot;
# 定制发送的消息，如时间地点等.
$today = getdate();
$month = $today[mon];
$mday = $today[mday];
$year = $today[year];
$hours = $today[hours];
$minutes = $today[minutes];
$errortime = "$month/$mday/$year at $hours:$minutes";
# Create the body of the email message
$message .= "404 Error ReportnnA 404 error was encountered by $REMOTE_ADDR";
$message .= " on $errortime.nn";
$message .= "The URI which generated the error is: n$docroot$REQUEST_URInn";
$message .= "The referring page was:n$HTTP_REFERERnn";
# Send the mail message. This assumes mail() will work on your system!
mail("$emailaddress", "404 Error Report", $message, "From: $emailaddress");  //好，把信发出去

return;
  }
# 下面这些是根据变量$reportlevel的设置来发信与否。
print_details();
# See whether or not we should send an email report. If so, do it.
if ($reportlevel != 0)
  if ($reportlevel == 1) {
if (eregi($domain,$HTTP_REFERER))
   send_email(); }
  else
   send_email();
# All done!
exit;
?>