如果訪問(wèn)您站點(diǎn)的用戶由于各種原因暫時(shí)出現(xiàn)無(wú)法訪問(wèn)頁(yè)面的錯(cuò)誤，如何給他一個(gè)友好的答復(fù)，并且你也知道發(fā)生了這個(gè)錯(cuò)誤，看看下面這段程序,是用來(lái)定制404錯(cuò)誤頁(yè)面和發(fā)通知給網(wǎng)管。

復(fù)制代碼代碼如下:

<?php 
# 設(shè)置 $domain 為你的域名 (注意沒(méi)有www) 
$domain = "jb51.net"; 
# 設(shè)置URL，注意沒(méi)有后劃線 / 
$docroot = "http://jb51.net"; 
# 設(shè)置錯(cuò)誤信息的字體 
$fontface = "Verdana"; 
# 設(shè)置404頁(yè)面的字體大小 
$fontsize = "2"; 
# 設(shè)置404頁(yè)面的背景顏色，缺省是白色 
$bgcolor = "#ffffff"; 
# 設(shè)置文字顏色,缺省是黑色 
$textcolor = "#000000"; 
# 使用 $reportlevel 變量來(lái)控制是否發(fā)信給網(wǎng)管 
# 0 = 根本不用發(fā)信，嘿，NB的我們?cè)趺磿?huì)出錯(cuò)呢 
# 1 = 只有在頁(yè)面含有你的DOMAIN NAME時(shí)才發(fā)信 
# 2 = 即使是與我連接出現(xiàn)的斷連也發(fā)信，有可能是友情站點(diǎn) 
$reportlevel = 2; //這種最保險(xiǎn)了 
$emailaddress = "webmaster@jb51.net"; //設(shè)置收錯(cuò)誤信息的郵箱 
function print_details() 
{ 
# Request access to the global variables we need 
global $fontface, $fontsize, $docroot, $REQUEST_URI, $reportlevel; 
global $bgcolor, $textcolor; 
# Print the 404 error in web format 
echo "<html><head><title>404 沒(méi)有找到頁(yè)面</title></head>"; 
echo "<body bgcolor="$bgcolor" text="$textcolor">"; 
echo "<b><h1>404 對(duì)不起，我沒(méi)有找到您要求的頁(yè)面</h1></b>"; 
echo "<p><font face="$fontface" size="$fontsize">"; 
echo "oncoding編碼營(yíng)提醒您,您要求的頁(yè)面 $docroot$REQUEST_URI, doesn't exist"; 
echo " on this server.</font></p>"; 
if ($reportlevel != 0) 
{ 
echo "<p><font face="$fontface" size="$fontsize">"; 
echo "錯(cuò)誤信息已經(jīng)發(fā)送到oncoding編碼營(yíng)管理員信箱."; 
} 
return; 
} 
# EMAIL處理函數(shù) 
function send_email() 
{ 
# Request access to the global variables we need 
global $REQUEST_URI, $HTTP_REFERER, $emailaddress, $REMOTE_ADDR, $docroot; 
# 定制發(fā)送的消息，如時(shí)間地點(diǎn)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: $emailaddress"); //發(fā)送信息 
return; 
} 
# 下面這些是根據(jù)變量$reportlevel的設(shè)置來(lái)發(fā)信與否。 
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; 
?> 