php没有安全漏洞,呵呵.要注意设置 
转贴：开发大型PHP项目的方法(四) Php安装使用问答（一） 在GD中输出汉字的函数的改进 LDAP安装 一个在PHP中利用递归实现论坛分级显示的例子(为了简单起见，我将分页显示部分去掉了) 好几位朋友都问到，如何在redhat自带的apache中加入PHP的支持，所以我找来了这篇文章 一个简单的（也可以说是不完全的）IMAP类和应用。（三） require和include经典一例抛析 设置相同名称的cookie，如何返回它们的值，请看： 页面导航：
正文内容：
sendmail.php4
<?
//加载发送附件的类
require(html_mime_mail.inc);
if($update!=""){ //如果带附件
//上传附件
if(!file_exists("c:/ftptmp/".$myfile_name)){
if(copy($myfile,"c:/ftptmp/".$myfile_name)){
//读取附件
$attachment = fread($fp = fopen("c:/ftptmp/".$myfile_name, r), filesize($myfile));
fclose($fp);
//unlink("c:/ftptmp/".$myfile_name);删掉
}
else {
echo "上传文件失败！";
exit();
}
}
else{
echo "文件重名！";
exit();
}
//新建一个类的实例，并加入附件
$mail = new html_mime_mail();
$mail->add_attachment($attachment, $myfile_name, application/octet-stream);
/*---------------------这段示范了如何发html信件---------------------------------------
$filename = background.gif;
$backgrnd = fread($fp = fopen($filename, r), filesize($filename));
fclose($fp);
$text = this is a test.;
$html = <html><body background="background.gif"><font face="verdana, arial" color="#ff0000"> success!</font><p></body></html>;
$mail->add_html_image($backgrnd, background.gif, image/gif);
$mail->add_html($html, $text);
-------------------------------------------------------------------------------------*/
//读取正文，将信件封装并发送
$mail->body=$bodytext;
$mail->build_message();
$backvalue=$mail->send( ,$receivemailbox, ,$sendmailbox,$subject, );
//发送提示信息
echo "<script language=javascript>alert(发信ok，按确定返回！);window.location=default.htm</script>";
}
else{ //如果不带附件
$backvalue=mail($receivemailbox,$subject,$bodytext,"from:" . $sendmailbox . "\nreply-to:" . $sendmailbox . "\nx-mailer: php/" . phpversion());
if ($result) {
echo "<script language=javascript>alert(发信ok，按确定返回！);window.location=default.htm</script>";
}
else{
echo "<script language=javascript>backvalue=window.confirm(发信失败！可能是服务器太忙！是否要重发？);if(backvalue){location.reload()}else{window.location=default.htm}</script>";
}
}
?>
html_mime_mail.inc 这个类是精华区里有的。我借来一用
<?
class html_mime_mail{
var $headers;
var $body;
var $multipart;
var $mime;
var $html;
var $html_text;
var $html_images = array();
var $cids = array();
var $do_html;
var $parts = array();
/***************************************
** constructor function. sets the headers
** if supplied.
***************************************/
function html_mime_mail($headers = ){
$this->headers = $headers;
}
/***************************************
** adds a html part to the mail.
** also replaces image names with
** content-ids.
***************************************/
function add_html($html, $text){
$this->do_html = 1;
$this->html = $html;
$this->html_text = $text;
if(is_array($this->html_images) and count($this->html_images) > 0){
for($i=0; $i<count($this->html_images); $i++){
$this->html = ereg_replace($this->html_images[$i][name], cid:.$this->html_images[$i][cid], $this->html);
}
}
}
/***************************************
** builds html part of email.
***************************************/
function build_html($orig_boundary){
$sec_boundary = =_.md5(uniqid(time()));
$thr_boundary = =_.md5(uniqid(time()));
if(!is_array($this->html_images)){
$this->multipart.= --.$orig_boundary."\r\n";
$this->multipart.= content-type: multipart/alternative; boundary=".$sec_boundary."\"\r\n\r\n\r\n";
$this->multipart.= --.$sec_boundary."\r\n";
$this->multipart.= content-type: text/plain."\r\n";
$this->multipart.= content-transfer-encoding: 7bit."\r\n\r\n";
$this->multipart.= $this->html_text."\r\n\r\n";
$this->multipart.= --.$sec_boundary."\r\n";
$this->multipart.= content-type: text/html."\r\n";
$this->multipart.= content-transfer-encoding: 7bit."\r\n\r\n";
$this->multipart.= $this->html."\r\n\r\n";
$this->multipart.= --.$sec_boundary."--\r\n\r\n";
}else{
$this->multipart.= --.$orig_boundary."\r\n";
$this->multipart.= content-type: multipart/related; boundary=".$sec_boundary."\"\r\n\r\n\r\n";
$this->multipart.= --.$sec_boundary."\r\n";
$this->multipart.= content-type: multipart/alternative; boundary=".$thr_boundary."\"\r\n\r\n\r\n";
$this->multipart.= --.$thr_boundary."\r\n";
$this->multipart.= content-type: text/plain."\r\n";
$this->multipart.= content-transfer-encoding: 7bit."\r\n\r\n";
$this->multipart.= $this->html_text."\r\n\r\n";
$this->multipart.= --.$thr_boundary."\r\n";
$this->multipart.= content-type: text/html."\r\n";
$this->multipart.= content-transfer-encoding: 7bit."\r\n\r\n";
$this->multipart.= $this->html."\r\n\r\n";
$this->multipart.= --.$thr_boundary."--\r\n\r\n";
for($i=0; $i<count($this->html_images); $i++){
$this->multipart.= --.$sec_boundary."\r\n";
$this->build_html_image($i);
}
$this->multipart.= "--".$sec_boundary."--\r\n\r\n";
}
}
/***************************************
** adds an image to the list of embedded
** images.
***************************************/
function add_html_image($file, $name = , $c_type=application/octet-stream){
$this->html_images[] = array( body => $file,
name => $name,
c_type => $c_type,
cid => md5(uniqid(time())) );
}
/***************************************
** adds a file to the list of attachments.
***************************************/
function add_attachment($file, $name = , $c_type=application/octet-stream){
$this->parts[] = array( body => $file,
name => $name,
c_type => $c_type );
}
/***************************************
** builds an embedded image part of an
** html mail.
***************************************/
function build_html_image($i){
$this->multipart.= content-type: .$this->html_images[$i][c_type];
if($this->html_images[$i][name] != ) $this->multipart .= ; name=".$this->html_images[$i][name]."\"\r\n";
else $this->multipart .= "\r\n";
$this->multipart.= content-id: <.$this->html_images[$i][cid].">\r\n";
$this->multipart.= content-transfer-encoding: base64."\r\n\r\n";
$this->multipart.= chunk_split(base64_encode($this->html_images[$i][body]))."\r\n";
}
/***************************************
** builds a single part of a multipart
** message.
***************************************/
function build_part($i){
$message_part = ;
$message_part.= content-type: .$this->parts[$i][c_type];
if($this->parts[$i][name] != )
$message_part .= ; name=".$this->parts[$i][name]."\"\r\n";
else
$message_part .= "\r\n";
// determine content encoding.
if($this->parts[$i][c_type] == text/plain){
$message_part.= content-transfer-encoding: 7bit."\r\n\r\n";
$message_part.= $this->parts[$i][body]."\r\n";
}else{
$message_part.= content-transfer-encoding: base64."\r\n";
$message_part.= content-disposition: attachment; filename=".$this->parts[$i][name]."\"\r\n\r\n";
$message_part.= chunk_split(base64_encode($this->parts[$i][body]))."\r\n";
}
return $message_part;
}
/***************************************
** builds the multipart message from the
** list ($this->parts).
***************************************/
function build_message(){
$boundary = =_.md5(uniqid(time()));
$this->headers.= "mime-version: 1.0\r\n";
$this->headers.= "content-type: multipart/mixed; boundary=\"".$boundary."\"\r\n";
$this->multipart = ;
$this->multipart.= "this is a mime encoded message.\r\ncreated by html_mime_mail.class.\r\nsee http://www.heyes-computing.net/scripts/ for a copy.\r\n\r\n";
if(isset($this->do_html) and $this->do_html == 1) $this->build_html($boundary);
if(isset($this->body) and $this->body != ) $this->parts[] = array(body => $this->body, name => , c_type => text/plain);
for($i=(count($this->parts)-1); $i>=0; $i--){
$this->multipart.= --.$boundary."\r\n".$this->build_part($i);
}
$this->mime = $this->multipart."--".$boundary."--\r\n";
}
/***************************************
** sends the mail.
***************************************/
function send($to_name, $to_addr, $from_name, $from_addr, $subject = , $headers = ){
if($to_name != ) $to = ".$to_name." <.$to_addr.>;
else $to = $to_addr;
if($from_name != ) $from = ".$from_name." <.$from_addr.>;
else $from = $from_addr;
$this->headers.= from: .$from."\r\n";
//$this->headers.= $headers;
mail($to, $subject, $this->mime, $this->headers);
}
/***************************************
** use this method to deliver using direct
** smtp connection. relies upon manuel lemos
** smtp mail delivery class available at:
** http://phpclasses.upperdesign.com
**
** void smtp_send( string *name* of smtp object,
** string from address,
** array to addresses,
** array headers,
** string the body)
***************************************/
function smtp_send($smtp_obj, $from_addr, $to_addr){
global $$smtp_obj;
$smtp_obj = $$smtp_obj;
if(substr($this->headers, -2) == "\r\n") $this->headers = substr($this->headers,0,-2);
$this->headers = explode("\r\n", $this->headers);
$smtp_obj->sendmessage($from_addr, $to_addr, $this->headers, $this->mime);
}
} // end of class.
?>
