PHP郵件專題 PHP SMTP類   
<?
/***********************************
PHP MIMESMTP ver 1.0 Powered by Boss_ch， Unigenius soft ware co. Ltd
All rights reserved, Copyright 2000 ;
本類用PHP通過smtp sock 操作發(fā)送MIME 類型的郵件，可以發(fā)送
HTML 格式的正文、附件，采用base64 編碼
本版本是針對個人的發(fā)送，與多人群發(fā)版本不同的是，每發(fā)送到一個人，就重新進行一次編碼，在接收端的用戶看來，只是發(fā)送給他一個人的。
針對多人群發(fā)的情況，只發(fā)送一次，通過多個RCPTTO命令發(fā)送到不同的人信箱中，
說明：
請把$hostname 設(shè)為你有權(quán)限的默認smtp 服務器或是在new 時指定
把$charset 改成你的默認字符集
Html 正文中如有圖片，請用絕對路徑的引用"httP://host/path/image.gif";
并連上網(wǎng)，以保證程序能讀取到圖片的數(shù)據(jù)信息
如果是通過表單提交過來的Html 正文，請先用StripSlashes($html_body)把正文內(nèi)容進行預處理
Html 中用到的樣式表文件，請不要用<link >之類的引用，直接把樣式表定義放在
<style></style>標簽中

轉(zhuǎn)載請保留此版權(quán)信息，Bugs Report : [email]boss_ch@china.com[/email]
*************************************/
if(!isset($__smtp_class__)){
$__smtp_class__=1;

class smtp
{
var $hostname="";
var $port=25;
var $connection=0;
var $debug=1;

var $timeout=30;
var $err_str;
var $err_no;

var $autocode=true;
var $charset="??????";
var $subject="";
var $body="";
var $attach="";
var $temp_text_body;
var $temp_html_body;
var $temp_body_images;

var $bound_begin="=====powered_by_boss_chen_";
var $bound_end="_046484063883_=====";

Function smtp($server="smtp.china.com",$port=25,$time_out=20)
{$this->hostname=$server;
$this->port=$port;
$this->timeout=$time_out;
return true;
}

Function outdebug($message)
{
echo htmlspecialchars($message)."<br>\n";
}


function command($command,$return_lenth=1,$return_code='2')
{
if ($this->connection==0)
{
$this->err_str="沒有連接到任何服務器，請檢查網(wǎng)絡連接";
return false;
}
if ($this->debug)
$this->outdebug(">>> $command");
if (!fputs($this->connection,"$command \r\n"))
{
$this->err_str="無法發(fā)送命令".$command;
return false;
}
else
{
$resp=fgets($this->connection,256);
if($this->debug)
$this->outdebug("$resp");
if (substr($resp,0,$return_lenth)!=$return_code)
{
$this->err_str=$command." 命令服務器返回無效:".$resp;
return false;
}
else
return true;
}
}


Function open()
{
if($this->hostname=="")
{$this->err_str="無效的主機名!!";
return false;
}

if ($this->debug) echo "$this->hostname,$this->port,&$err_no, &$err_str, $this->timeout<BR>";
if (!$this->connection=fsockopen($this->hostname,$this->port,&$err_no, &$err_str, $this->timeout))
{
$this->err_str="連接到SMTP 服務器失敗,錯誤信息：".$err_str."錯誤號：".$err_no;
return false;
}
else
{
$resp=fgets($this->connection,256);
if($this->debug)
$this->outdebug("$resp");
if (substr($resp,0,1)!="2")
{$this->err_str="服務器返回無效的信息：".$resp."請檢查SMTP服務器是否正確";
return false;
}
return true;
}
}


Function Close()
{
if($this->connection!=0)
{
fclose($this->connection);
$this->connection=0;
}
}

Function Buildhead($from_name,$to_name,$from_mail,$to_mail,$subject)
{
if (empty($from_name))
$from_name=$from_mail;
if (empty($to_name)) $to_name=$to_mail;
$this->subject="From: =?$this->charset?B?".base64_encode($from_name)."?=<$from_mail>\r\n";
$this->subject.="To: =?$this->charset?B?".base64_encode($to_name)."?=<$to_mail>\r\n";
$subject=ereg_replace("\n","",$subject);
$this->subject.="Subject: =?$this->charset?B?".base64_encode($subject)."?=\r\n";
if ($this->debug) echo nl2br(htmlspecialchars($this->subject));
return true;
}


Function parse_html_body($html_body=null)
{
$passed="";
$image_count=0;
$this->temp_body_images=array();
while (eregi("\<*img([^\>]+)src[[:space:]]*=[[:space:]]*([^ ]+)",$html_body,$reg))
{

$pos=@strpos($html_body,$reg[0]);
$passed.=substr($html_body,0,$pos);
$html_body=substr($html_body,$pos+strlen($reg[0]));
$image_tag=$reg[2];
$image_att=$reg[1];
$tag_len=strlen($image_tag);
if ($image_tag[0]=="'" or $image_tag[0]=='"')
$image_tag=substr($image_tag,1);
if (substr($image_tag,strlen($imgage_tag)-1,1)=="'" or substr($image_tag,strlen($imgage_tag)-1,1)=='"')
$image_tag=substr($image_tag,0,strlen($imgage_tag)-1);
//echo $image_tag."<br>";
$cid=md5(uniqid(rand()));
$cid=substr($cid,0,15)."@unigenius.com";
$passed.="<img ".$image_att."src=\"cid:".$cid."\"";
$end_pos=@strpos($html_body,'>');
$passed.=substr($html_body,0,$end_pos);
$html_body=substr($html_body,$end_pos);
// 把圖片數(shù)據(jù)讀出來保存到一個數(shù)據(jù)；

$img_file_con=fopen($image_tag,"r");
unset($image_data);
while ($tem_buffer=AddSlashes(fread($img_file_con,16777216)))
$image_data.=$tem_buffer;
fclose($img_file_con);
$image_exe_name=substr($image_tag,strrpos($image_tag,'.')+1,3);
switch (strtolower($image_exe_name))
{
case "jpg":
case "jpeg":
$content_type="image/jpeg";
break;
case "gif":
$content_type="image/gif";
break;
case "png":
$content_type="image/x-png";
break;
case "tif":
$content_type="image/tif";
break;
default:
$content_type="image/";
break;
}

$this->temp_body_images[$image_count][name]=basename($image_tag);
$this->temp_body_images[$image_count][type]=$content_type;
$this->temp_body_images[$image_count][cid]=$cid;
$this->temp_body_images[$image_count][data]=$image_data;
$image_count++;
}
$this->temp_html_body=$passed.$html_body;
return true;

}

function build_content($bound_level=0,$text_body,$html_body,$hava_att=false)
{
if ($html_body)
{
if (eregi("\<*img[[:space:]]+src[[:space:]]*=[[:space:]]*([^ ]+)",$html_body,$reg))
{
$bound_level++;
if ($text_body)
{
$this->body.="Content-Type: multipart/related;
type=\"multipart/alternative\";
\tboundary=\"";
$this->body.=$this->bound_begin.$bound_level.$this->bound_end."\"\r\n\r\n";
}
else
{
$this->body.="Content-Type: multipart/related;
\tboundary=\"";
$this->body.=$this->bound_begin.$bound_level.$this->bound_end."\"\r\n\r\n";

}// 對于是否 text 正文 、 html正文 有沒有，須有不同的 MIME 頭
if (!$hava_att) $this->body.="This is a multi-part message in MIME format.\r\n\r\n";
// 正文標識，如果是已經(jīng)有附件的編碼，則在正文 中不需要這一句
$this->body.="--".$this->bound_begin.$bound_level.$this->bound_end."\r\n";
$this->parse_html_body($html_body);
if ($text_body)
{
$this->body.="Content-Type: multipart/alternative;
\tboundary=\"";
$bound_level++;
$this->body.=$this->bound_begin.$bound_level.$this->bound_end."\"\r\n\r\n";
$this->body.="--".$this->bound_begin.$bound_level.$this->bound_end."\r\n";
$this->body.="Content-Type: text/plain;\r\n";
$this->body.="\tcharset=\"$this->charset\"\r\n";
$this->body.="Content-Transfer-Encoding: base64\r\n";
$this->body.="\r\n".chunk_split(base64_encode(StripSlashes($text_body)))."\r\n";
$this->body.="--".$this->bound_begin.$bound_level.$this->bound_end."\r\n";
$this->body.="Content-Type: text/html;\r\n";
$this->body.="\tcharset=\"$this->charset\"\r\n";
$this->body.="Content-Transfer-Encoding: base64\r\n";
$this->body.="\r\n".chunk_split(base64_encode(StripSlashes($this->temp_html_body)))."\r\n";
$this->body.="--".$this->bound_begin.$bound_level.$this->bound_end."--\r\n\r\n";
$bound_level--;
}
else
{
$this->body.="--".$this->bound_begin.$bound_level.$this->bound_end."\r\n";
$this->body.="Content-Type: text/html;\r\n";
$this->body.="\tcharset=\"$this->charset\"\r\n";
$this->body.="Content-Transfer-Encoding: base64\r\n";
$this->body.="\r\n".chunk_split(base64_encode(StripSlashes($this->temp_html_body)))."\r\n";
}//正文編碼，有或沒有text 部分，編成不同的格式。
for ($i=0;$i<count($this->temp_body_images);$i++)
{
$this->body.="--".$this->bound_begin.$bound_level.$this->bound_end."\r\n";
$this->body.="Content-Type:".$this->temp_body_images[$i][type].";
name=\"";
$this->body.=$this->temp_body_images[$i][name]."\"\r\n";
$this->body.="Content-Transfer-Encoding: base64\r\n";
$this->body.="Content-ID: <".$this->temp_body_images[$i][cid].">\r\n";
$this->body.="\r\n".chunk_split(base64_encode(StripSlashes($this->temp_body_images[$i][data])))."\r\n";
}
$this->body.="--".$this->bound_begin.$bound_level.$this->bound_end."--\r\n\r\n";
$bound_level--;
}
else // 有或沒有圖片，以上是有圖片的處理，下面是沒有圖片的處理
{
$this->temp_html_body=$html_body;
if ($text_body)
{
$bound_level++;
$this->body.="Content-Type: multipart/alternative;
\tboundary=\"";
$this->body.=$this->bound_begin.$bound_level.$this->bound_end."\"\r\n\r\n";

if (!$hava_att) $this->body.="\r\nThis is a multi-part message in MIME format.\r\n\r\n";
$this->body.="--".$this->bound_begin.$bound_level.$this->bound_end."\r\n";
$this->body.="Content-Type: text/plain;\r\n";
$this->body.="\tcharset=\"$this->charset\"\r\n";
$this->body.="Content-Transfer-Encoding: base64\r\n";
$this->body.="\r\n".chunk_split(base64_encode(StripSlashes($text_body)))."\r\n";
$this->body.="--".$this->bound_begin.$bound_level.$this->bound_end."\r\n";
$this->body.="Content-Type: text/html;\r\n";
$this->body.="\tcharset=\"$this->charset\"\r\n";
$this->body.="Content-Transfer-Encoding: base64\r\n";
$this->body.="\r\n".chunk_split(base64_encode(StripSlashes($this->temp_html_body)))."\r\n";
$this->body.="--".$this->bound_begin.$bound_level.$this->bound_end."--\r\n\r\n";
$bound_level--;
}
else
{
$this->body.="Content-Type: text/html;\r\n";
$this->body.="\tcharset=\"$this->charset\"\r\n";
$this->body.="Content-Transfer-Encoding: base64\r\n";
$this->body.="\r\n".chunk_split(base64_encode(StripSlashes($this->temp_html_body)))."\r\n";
}//正文編碼，有或沒有text 部分，編成不同的格式。

}// end else
}
else // 如果沒有html 正文，只有text 正文
{
$this->body.="Content-Type: text/plain;
\tcharset=\"$this->charset\"\r\n";
$this->body.="Content-Transfer-Encoding: base64\r\n";
$this->body.="\r\n".chunk_split(base64_encode(StripSlashes($text_body)))."\r\n";
}
}// end function default


Function Buildbody($text_body=null,$html_body=null,$att=null)
{
$this->body="MIME-Version: 1.0\r\n";
if (null==$att or (@count($att)==0)) //如果沒有附件，查看正文的類型；
{
$encode_level=0;
$this->build_content($encode_level,$text_body,$html_body);
}// 如果沒有附件，
// ********************************************************
else //如果有附件，
{
$bound_level=0;
$this->body.="Content-Type: multipart/mixed;
\tboundary=\"";
$bound_level++;

$this->body.=$this->bound_begin.$bound_level.$this->bound_end."\"\r\n\r\n";
$this->body.="This is a multi-part message in MIME format.\r\n\r\n";
$this->body.="--".$this->bound_begin.$bound_level.$this->bound_end."\r\n";
$this->build_content($bound_level,$text_body,$html_body,true);// 編入正文部分

$num=count($att);
for ($i=0;$i<$num;$i++)
{
$file_name=$att[$i][name];
$file_source=$att[$i][source];
$file_type=$att[$i][type];
$file_size=$att[$i][size];

if (file_exists($file_source))
{
$file_data=addslashes(fread($fp=fopen($file_source,"r"), filesize($file_source)));
$file_data=chunk_split(base64_encode(StripSlashes($file_data)));
$this->body.="--".$this->bound_begin.$bound_level.$this->bound_end."\r\n";
$this->body.="Content-Type: $file_type;\r\n\tname=\"$file_name\"\r\nContent-Transfer-Encoding: base64\r\n";
$this->body.="Content-Disposition: attachment;\r\n\tfilename=\"$file_name\"\r\n\r\n";
$this->body.=$file_data."\r\n";
}
}//end for

$this->body.="--".$this->bound_begin.$bound_level.$this->bound_end."--\r\n\r\n";
}// end else

if ($this->debug) echo nl2br(htmlspecialchars($this->body));

return true;
}


function send($from_name,$to_name,$from_mail,$to_mail,$subject,$text_body=false,$html_body=false,$att=false)
{

if (empty($from_mail) or empty($to_mail))
{
$this->err_str="沒有指定正確的郵件地址:發(fā)送人：".$from_mail."接收人：".$to_mail;
return false;
}

if (gettype($to_mail)!="array")
$to_mail=split(",",$to_mail);//如果不是數(shù)組，轉(zhuǎn)換成數(shù)組，哪怕只有一個發(fā)送對象;
if (gettype($to_name)!="array")
$to_name=split(",",$to_name);//如果不是數(shù)組，轉(zhuǎn)換成數(shù)組，哪怕只有一個發(fā)送對象;

$this->Buildbody($text_body,$html_body,$att);
// 所有信件的內(nèi)容是一樣的，可以只編一次，而對于不同的收信人，需要不同的Head


if (!$this->open()) return false;
if (!$this->command("HELO $this->hostname",3,"250")) return false;
// 與服務器建立鏈接
if (!$this->open()) return false;
if (!$this->command("HELO $this->hostname",3,"250")) return false;

for ($i=0;$i<count($to_mail);$i++)
{
$this->Buildhead($from_name,$to_name[$i],$from_mail,$to_mail[$i],$subject);
if (!$this->command("RSET",3,"250")) return false;
if (!$this->command("MAIL FROM:".$from_mail,3,"250")) return false;
if (!$this->command("RCPT TO:".$to_mail[$i],3,"250")) return false;
if (!$this->command("DATA",3,"354")) return false;
// 準備發(fā)送郵件
if ($this->debug) $this->outdebug("sending subject;");
if (!fputs($this->connection,$this->subject)) {$this->err_str="發(fā)送郵件頭時出錯！";return false;}
if ($this->debug) $this->outdebug("sending body;");
if (!fputs($this->connection,$this->body)) {$this->err_str="發(fā)送正文時出錯！";return false;}
if (!fputs($this->connection,".\r\n")) {$this->err_str="發(fā)送正文時出錯！";return false;}//正文發(fā)送完畢，退出；
$resp=fgets($this->connection,256);
if($this->debug)
$this->outdebug("$resp");
if (substr($resp,0,1)!="2")
{
$this->err_str="發(fā)送完后，服務器沒有響應！！";
return false;
}
// 發(fā)送郵件
}
if (!$this->command("QUIT",3,"221")) return false;
$this->close();
return true;
}

}//end class define
}//end if(!isset($__smtp_class__))
?>


PHP SMTP類使用方法   
<?
include("smtp.php");

$mail = new smtp("localhost");

$mail->debug = 0;

$sender_name = "root";
$sender_mail = "root@localhost";
$to_name = "mm";
$to_mail = "[email]mm@your.com[/email]";
$subject = "i miss u";
$content = "i miss u much.";
$att[0]["name"] = "miss.jpg";
$att[0]["source"] = "/path/to/your/miss.jpg";
$att[0]["type"] = "image/jpeg";
$att[0]["size"] = "10kb";
$extra_subject = "To:".$to_mail." 主題:".$subject;

if (!$mail->send($sender_name,$to_name,$sender_mail,$to_mail,$extra_subject,$content,false,$att))
$err = 1;
?>




返回文件的MIME類型的函數(shù)guessMIMEType()   
function guessMIMEType($filename) {
//GUESS MIME TYPE
$filename = basename($filename);
if(strrchr($filename,".") == false) {
return("application/octet-stream");
}

$ext = strrchr($filename,".");
switch($ext) {
case ".gif":
return "image/gif";
break;
case ".gz":
return "application/x-gzip";
case ".htm":
case ".html":
return "text/html";
break;
case ".jpg":
return "image/jpeg";
break;
case ".tar":
return "application/x-tar";
break;
case ".txt":
return "text/plain";
break;
case ".zip":
return "application/zip";
break;
default:
return "application/octet-stream";
break;
}
}


檢測Email地址的函數(shù)IsValidEmail()   
function IsValidEmail($Email) {
if(!ereg("^[[:alnum:]\_\.]+@([[:alnum:]\_]+\.)+[[:alnum:]][[:alnum:]][[:alnum:]]?$",$Email, $regs)){
$IsValidEmail = false;
}
else
{
$IsValidEmail = true;
}
return $IsValidEmail;
}




一個MIME MAIL類，請大家注意如何構(gòu)造一個郵件體   
<?
class mime_mail
{
var $parts;
var $to;
var $from;
var $headers;
var $subject;
var $body;

/*
* void mime_mail()
* class constructor
*/
function mime_mail()
{
$this->parts = array();
$this->to = "";
$this->from = "";
$this->subject = "";
$this->body = "";
$this->headers = "";
}

/*
* void add_attachment(string message, [string name], [string ctype])
* Add an attachment to the mail object
*/
function add_attachment($message, $name = "", $ctype = "application/octet-stream")
{
$this->parts[] = array (
"ctype" => $ctype,
"message" => $message,
"encode" => $encode,
"name" => $name
);
}

/*
* void build_message(array part=
* Build message parts of an multipart mail
*/
function build_message($part)
{
$message = $part["message"];
$message = chunk_split(base64_encode($message));
$encoding = "base64";
return "Content-Type: ".$part["ctype"].
($part["name"]?";\n\tname=\"".$part["name"]."\"" : "").
"\nContent-Transfer-Encoding: $encoding".
"\nContent-Disposition: attachment".
($part["name"]?";\n\tfilename=\"".$part["name"]."\"" : "").
"\n\n$message\n";
}

/*
* void build_multipart()
* Build a multipart mail
*/
function build_multipart()
{
$boundary = "b".md5(uniqid(time()));
$multipart = "Content-Type: multipart/mixed;\n\tboundary=\"$boundary\"\n\nThis is a MIME encoded message.\n\n--$boundary";

for($i = sizeof($this->parts)-1; $i >= 0; $i--)
{
$multipart .= "\n".$this->build_message($this->parts[$i])."--$boundary";
}
return $multipart.= "--\n";
}

/*
* void send()
* Send the mail (last class-function to be called)
*/
function send()
{
$addtionheaders = "";
if (!empty($this->from))
$addtionheaders .= "From: ".$this->from."\n";
if (!empty($this->headers))
$addtionheaders .= $this->headers."\n";

if (!empty($this->body))
$this->add_attachment($this->body, "", "text/plain");

$addtionheaders .= "MIME-Version: 1.0\n".$this->build_multipart();

$fp = fopen("mail.txt","w");
fputs($fp,$addtionheaders);
fclose($fp);
mail($this->to, $this->subject, "", $addtionheaders);
}
}; // end of class

/*
* Example usage
*

$attachment = fread(fopen("test.jpg", "r"), filesize("test.jpg"));

$mail = new mime_mail();
$mail->from = "[email]foo@bar.com[/email]";
$mail->headers = "Errors-To: [email]foo@bar.com[/email]";
$mail->to = "[email]bar@foo.com[/email]";
$mail->subject = "Testing...";
$mail->body = "This is just a test.";
$mail->add_attachment("$attachment", "test.jpg", "image/jpeg");
$mail->send();

*/
?>


myimap類，讀取郵件   
<?php
//////////////////////////////////////////////
//Origin by Alpha.Z (5/21/2000)
//Modified By Belltree <[email]belltree@163.com[/email]> (11/01/2000)
///////////////////////////////////////////////
class myimap
{
var $username="";
var $userpwd="";
var $hostname="";
var $port=0;
var $connection=0; //是否連接
var $state="DISCONNECTED"; //連接狀態(tài)
var $greeting="";
var $must_update=0;
var $inStream=0;
var $num_msg_parts = 0;
var $attach;
var $num_of_attach = 0;

function open()
{
if ($this->port==110)
$this->inStream=imap_open("{".$this->hostname."/pop3:110}inbox",$this->username,$this->userpwd);
else
$this->inStream=imap_open("{".$this->hostname.":143}INBOX",$this->username,$this->userpwd);

if ($this->inStream)
{
//echo "用戶：$this->username 的信箱連接成功。<br>";
return $inStream;
}
else
{
echo "用戶：$this->username 的信箱連接失敗。<br>";
return 0;
}
}

Function close()
{
if(imap_close($this->inStream))
{
//echo "<hr>已經(jīng)與服務器 $this->hostname 斷開連接。";
return 1;
}
else
{
//echo "<hr>與服務器 $this->hostname 斷開連接失敗。";
return 0;
}
}

function DeleteMail($msg_no){
if (@imap_delete($this->inStream,$msg_no))
return true;
else
return false;
}

function ExpungeMail(){
if (@imap_expunge($this->inStream))
return true;
else
return false;
}


function CheckMailbox($page_size,$page)
{
$mboxinfo=@imap_mailboxmsginfo($this->inStream);
//$mboxinfo=imap_check($this->inStream);
if ($mboxinfo)
if ($mboxinfo->Nmsgs>0)
{
//echo "您郵箱：".$mboxinfo->Mailbox."<br>";
echo $this->username."@wells.com的收件箱里共有郵件數(shù)：".$mboxinfo->Nmsgs."<br>\n";
echo "未讀郵件數(shù)：".$mboxinfo->Unread."";
echo "新郵件數(shù)：".$mboxinfo->Recent." ";
echo "總共占用空間：".$mboxinfo->Size."字節(jié)<br>\n";
$last_page = ceil($mboxinfo->Nmsgs/$page_size);
$cur_page = $page +1;
$num_page = $last_page;
echo "第".$cur_page."頁，共".$last_page."頁。\n";
}
else
{
echo "您的信箱里沒有郵件。<br><hr>\n";
}
else
{
echo '<font color="#ff0000">錯誤：無法獲取收件箱的信息。</font>';
return 0;
}
echo "<table border=1 width=100% cellpadding=2 cellspacing=0 bordercolorlight=#000080 bordercolordark=#ffffff style=\"font:9pt Tahoma,宋體\">\n";
echo "<tr bgcolor=#ffffd8><td width=24>狀態(tài)</td><td width=24> </td><td>發(fā)件人</td><td>主題</td><td>時間</td><td>大小</td></tr>\n";
$sortby="SORTDATE";
$sort_reverse=1;
$sorted = imap_sort($this->inStream, $sortby, $sort_reverse, SE_UID);

for ($i=0;$i<$mboxinfo->Nmsgs;$i++)
{
if (($i>=$page*$page_size) and ($i<$page*$page_size+$page_size)){
$msg_no = @imap_msgno($this->inStream, $sorted[$i]);
$msgHeader = @imap_header($this->inStream, $msg_no);
//日期

if (isset($msgHeader->date))
{
$date = $msgHeader->date;

if (ord($date) > 64)
$date = substr($date, 5);

$datepart = split(" ",$date);
$date = $datepart[0]." ".$datepart[1]." ".$datepart[2]." ".$datepart[3];
/*
while (strstr(' ', $date))
{
$date = str_replace(' ', ' ', $date);
}
*/
}

if (isset($msgHeader->from[0]))
{
$from = $msgHeader->from[0];
if (isset($from->personal))
{
$frm = trim($this->decode_mime_string($from->personal));
if (isset($from->mailbox) && isset($from->host))
{
$frm_add = $from->mailbox . '@' . $from->host;
}
}
else
if (isset($from->mailbox) && isset($from->host))
{
$frm = $from->mailbox . '@' . $from->host;
}
else
if (isset($msgHeader->fromaddress))
$frm = trim($h->fromaddress);
}
else
if (isset($msgHeader->fromaddress))
$frm = trim($msgHeader->fromaddress);

if (isset($msgHeader->toaddress))
$to = trim($msgHeader->toaddress);
else
$to = "未知";


if (isset($msgHeader->subject))
$sub = trim($this->decode_mime_string($msgHeader->subject));
if ($sub == "")
$sub = "無主題";
if (isset($msgHeader->Size))
$msg_size = ($msgHeader->Size > 1024) ? sprintf("%.0f kb", $msgHeader->Size / 1024) : $msgHeader->Size;
//if (strlen($frm) > 50)
// $frm = substr($frm, 0, 50) . '...';
if (strlen($sub) > 50)
$sub = substr($sub, 0, 50) . '...';
if ($msgHeader->Unseen == "U")
$newmail = "未讀";
else
$newmail = "已讀";
echo "<tr>\n";
echo "<td align=center>$newmail</td><td align=\"center\"></td>\n";
echo '<td>'.$frm.'</td><td><a href="mail_read.php?msg='.$msg_no.'">'.$sub.'</a></td><td width=125>'.$date.'</td><td width=50>'.$msg_size.'</td>';
echo "</tr>\n";
}}
echo "</table>\n";
echo "<table border=0 width=100% cellspacing=4 cellpadding=4><tr>\n";
if ($page == 0)
echo "<td>第一頁</td>\n";
else
echo "<td><a href=\"mail_list.php?page=0\">第一頁</a></td>\n";
if (($prev_page = $page-1) < 0)
echo "<td>前一頁</td>\n";
else
echo "<td><a href=\"mail_list.php?page=$prev_page\">前一頁</a></td>\n";

if (($next_page = $page + 1) >= $last_page)
echo "<td>后一頁</td>\n";
else
echo "<td><a href=\"mail_list.php?page=$next_page\">后一頁</a></td>\n";
$last_page --;
if ( $last_page < $next_page)
echo "<td>最末頁</td>\n";
else
echo "<td><a href=\"mail_list.php?page=$last_page\">最末頁</a></td>\n";
echo "</tr></table>\n";
}

function decode_mime_string ($string)
{
$pos = strpos($string, '=?');
if (!is_int($pos))
{
return $string;
}

$preceding = substr($string, 0, $pos); // save any preceding text

$search = substr($string, $pos+2, 75); // the mime header spec says this is the longest a single encoded word can be
$d1 = strpos($search, '?');
if (!is_int($d1))
{
return $string;
}

$charset = substr($string, $pos+2, $d1);
$search = substr($search, $d1+1);

$d2 = strpos($search, '?');
if (!is_int($d2))
{
return $string;
}

$encoding = substr($search, 0, $d2);
$search = substr($search, $d2+1);

$end = strpos($search, '?=');
if (!is_int($end))
{
return $string;
}

$encoded_text = substr($search, 0, $end);
$rest = substr($string, (strlen($preceding . $charset . $encoding . $encoded_text)+6));

switch ($encoding)
{
case 'Q':
case 'q':
$encoded_text = str_replace('_', '%20', $encoded_text);
$encoded_text = str_replace('=', '%', $encoded_text);
$decoded = urldecode($encoded_text);
break;

case 'B':
case 'b':
$decoded = urldecode(base64_decode($encoded_text));
break;

default:
$decoded = '=?' . $charset . '?' . $encoding . '?' . $encoded_text . '?=';
break;
}

return $preceding . $decoded . $this->decode_mime_string($rest);
}


Function display_toaddress ($user, $server, $from)
{
return is_int(strpos($from, $this->get_barefrom($user, $server)));
}

Function get_barefrom($user, $server)
{
$barefrom = "$user@$real_server";

return $barefrom;
}

Function get_structure($msg_num)
{
$structure=imap_fetchstructure($this->inStream,$msg_num);
//echo gettype($structure);
return $structure;
}


Function proc_structure($msg_part, $part_no, $msg_num)
{
if ($msg_part->ifdisposition)
{
// See if it has a disposition, The only thing I know of that this, would be used for would be an attachment
// Lets check anyway
if ($msg_part->disposition == "attachment")
{
$att_name = "unknown";
for ($lcv = 0; $lcv < count($msg_part->parameters); $lcv++)
{
$param = $msg_part->parameters[$lcv];

if ($param->attribute == "name")
{
$att_name = $param->value;
break;
}
}

$att_name = $this->decode_mime_string($att_name);

$att_path = $this->username."\\".$att_name;

$this->attach[$this->num_of_attach]=$att_name; //登記附件列表
$this->num_of_attach ++; //登記附件數(shù)量
/*
$att_path = $this->username."\\".$this->decode_mime_string($att_name);
if ($this->attach=="")
$this->attach = $att_name;
else
$this->attach .= ";".$att_name;
*/
if (!is_dir($this->username))
mkdir($this->username,0700);
$fp=fopen($att_path,"w");
switch ($msg_part->encoding)
{
case 3: // base64
fputs($fp,imap_base64(imap_fetchbody($this->inStream,$msg_num,$part_no)));
break;
case 4: // QP
fputs($fp,imap_qprint(imap_fetchbody($this->inStream,$msg_num,$part_no)));
break;
default:
fputs($fp,imap_fetchbody($this->inStream,$msg_num,$part_no));
break;
}
fclose($fp);

//if ($msg_part->type=="5"){
// echo "<p align=center><hr align=center>\n";
// echo "<img src=\"$att_path\" align=center></p>\n";
//}
} // END IF ATTACHMENT
else //NOT ifdisposition
{
// I guess it is used for something besides attachments????
}
}
else
{
// Not an attachment, lets see what this part is...
switch ($msg_part->type)
{
case 0:
$mime_type = "text";
break;
case 1:
$mime_type = "multipart";
// Hey, why not use this function to deal with all the parts
// of this multipart part
$this->num_msg_parts = count($msg_part->parts);
for ($i = 0; $i < $this->num_msg_parts; $i++)
{
if ($part_no != "")
{
$part_no = $part_no.".";
}
for ($i = 0; $i < count($msg_part->parts); $i++)
{
$this->proc_structure($msg_part->parts[$i], $part_no.($i + 1), $msg_num);
}
}
break;
case 2:
$mime_type = "message";
break;
case 3:
$mime_type = "application";
break;
case 4:
$mime_type = "audio";
break;
case 5:
$mime_type = "image";
break;
case 6:
$mime_type = "video";
break;
case 7:
$mime_type = "model";
break;
default:
$mime_type = "unknown";
// hmmm....
}

$full_mime_type = $mime_type."/".$msg_part->subtype;
$full_mime_type = strtolower($full_mime_type);


// Decide what you what to do with this part
// If you want to show it, figure out the encoding and echo away

switch ($msg_part->encoding)
{

case 0:
case 1:
if ($this->num_msg_parts == 0){
echo ereg_replace("\r\n","<br>\r\n",imap_body($this->inStream,$msg_num));

}
else{
if ($part_no!=""){
echo ereg_replace("\r\n","<br>\r\n",imap_fetchbody($this->inStream,$msg_num,$part_no));

}
}
break;
case 3: //BASE64

if ($full_mime_type=="text/plain"){

if ($this->num_msg_parts == 0){
$content=imap_base64(imap_body($this->inStream,$msg_num));
}
else{
$content = imap_base64(imap_fetchbody($this->inStream,$msg_num,$part_no));
$att_path = $this->username . "\\文本內(nèi)容.txt";
$fp = fopen($att_path,"w");
fputs($fp,$content);
fclose($fp);
$this->attach[$this->num_of_attach]="文本內(nèi)容.txt";
$this->num_of_attach++;
}

echo $content;

}

if ($full_mime_type=="text/html"){
$att_path = $this->username . "\\超文本內(nèi)容.htm";
$fp = fopen($att_path,"w");
fputs($fp,imap_base64(imap_fetchbody($this->inStream,$msg_num,$part_no)));
fclose($fp);
$this->attach[$this->num_of_attach]="超文本內(nèi)容.htm";
$this->num_of_attach++;
}
break;
case 4: //QPRINT
// use imap_qprint to decode
if ($this->num_msg_parts == 0){
echo ereg_replace("\n","<br>",imap_qprint(imap_body($this->inStream,$msg_num)));

}
else{
echo ereg_replace("\n","<br>",imap_qprint(imap_fetchbody($this->inStream,$msg_num,$part_no)));

}
if ($full_mime_type=="text/html"){
$att_path = $this->username . "\\qp超文本內(nèi)容.htm";
$fp = fopen($att_path,"w");
fputs($fp,imap_base64(imap_fetchbody($this->inStream,$msg_num,$part_no)));
fclose($fp);
$this->attach[$this->num_of_attach]="qp超文本內(nèi)容.htm";
$this->num_of_attach++;
}
break;
case 5:
// not sure if this needs decoding at all
echo ereg_replace("\n","<br>",imap_fetchbody($this->inStream,$msg_num));
break;
default:
//echo ereg_replace("\n","<br>",imap_fetchbody($this->inStream,$msg_num,$part_no));
break;
}

}
}


};

?>


myimap的擴展類，及讀取一封郵件的例子(mail_read.php)   
<?
require("myimap.php");

class myimap_ext extends myimap {

function get_mail_subject($msg_no){
$msgHeader = @imap_header($this->inStream, $msg_no);
if (isset($msgHeader->subject))
$sub = trim($this->decode_mime_string($msgHeader->subject));
if ($sub == "")
$sub = "無主題";
return "Fw:".$sub;
}
function print_attaches(){
for ($i=0;$i<count($this->attach);$i++){
echo "<a target=_blank href=\"".$this->username."\\".$this->attach[$i]."\">".$this->attach[$i]."<br/>";
}
}
function list_attaches(){
for ($i=0;$i<count($this->attach);$i++){
if ($i==0)
$attaches = $this->attach[$i];
else
$attaches .= ";".$this->attach[$i];
}
return $attaches;
}
}

$imap=new myimap_ext;
$imap->hostname="localhost";
$imap->port=143;
$imap->username="name";
$imap->userpwd="password";

$imap->open();

$mail_structure=$imap->get_structure($msg);
$imap->proc_structure($mail_structure,"",$msg);
if ($imap->num_of_attach > 0){
$imap->print_attaches();
}
@$imap->close();
?>


myimap的例子(mail_list.php)   
<?
require("myimap.php");

$imap=new myimap;
$imap->hostname="localhost";
$imap->port=143;
$imap->username="name";
$imap->userpwd="password";

$imap->open();
if ($page=="") $page=0;
$imap->CheckMailBox(10,$page);
@$imap->close();
?>


如何發(fā)送附件（轉(zhuǎn)）   
我經(jīng)常聽到這樣一個問題："我有一個從網(wǎng)站發(fā)來的合同。我如何給通過表單發(fā)送的電子郵件增加一個附件呢？"
首先我要說的是要做到這個沒有什么簡單的辦法。你要很好的理解PHP或
其它的服務器端的腳本語言。當然你還要一個真正支持PHP的網(wǎng)站的賬號。如果滿足了這個前提，在你讀完了本章后就可以用PHP發(fā)送帶附件的電子郵件了。

1. 附件是如何工作的

如果你曾經(jīng)在PHP的手冊中搜索過"附件"函數(shù)，那么結(jié)果可能是什么都沒有（至少在我寫本文的時間還沒有）。后來你就要花很多時間來了解這方面的知識。

你也許會想當你給某個人發(fā)送一封帶附件的電子郵件時，附件是和郵件一起放到收件人的信箱里的（比如，如果你給他/她發(fā)了一個PNG的圖片文件，他/她的信箱里會包含一個txt文件（電子郵件）和一個.png文件（附件））。但這不是它的工作原理。當你加入一個附件時，你的郵件程序把附件轉(zhuǎn)換成純文本文件，并在你寫的內(nèi)容（實際的電子郵件）后面插入這個文本塊。這個，當你把所有的東西發(fā)出來后，收件人的信箱里只有一個純文本文件--一個同時包含附件和實際電子郵件內(nèi)容的文件。

下面是一個帶附件（一個HTML文件）電子郵件的例子。我已經(jīng)標注了其中重要的幾行：

Return-Path: <[email]someone@example.com[/email]>
Date: Mon, 22 May 2000 19:17:29 +0000
From: Someone <[email]someone@example.com[/email]>
To: Person <[email]person@eksempel.dk[/email]>
Message-id: <[email]83729KI93LI9214@example.com[/email]>
Content-type: multipart/mixed; boundary="396d983d6b89a"
Subject: Here's the subject

--396d983d6b89a
Content-type: text/plain; charset=iso-8859-1
Content-transfer-encoding: 8bit

This is the body of the email.

--396d983d6b89a
Content-type: text/html; name=attachment.html
Content-disposition: inline; filename=attachment.html
Content-transfer-encoding: 8bit

<html>
<head>
<title>The attachment</title>
</head>
<body>
<h2>This is the attached HTML file</h2>
</body>
</html>

--396d983d6b89a--



前面的7行是郵件的頭，其中值得注意的是Content-type頭部分。這個頭告訴郵件程序電子郵件是由一個以上的部分組成的。不含附件的郵件只有一個部分：消息本身。帶附件的電子通常至少由兩部分組成：消息和附件。這樣，帶兩個附件的郵件由三部分組成：消息，第一個附件和第二個附件。

帶附件的電子郵件的不同部分之間用分界線來分隔。分界線在Content-type頭中定義。郵件的每個新部分以兩個連字號（--）和分界線開始。最后一個分界線后也有兩個連字號，表示這個郵件中沒有其它的部分了。

在每個分界線后有一些行，用來告訴郵件程序這個部分的內(nèi)容的類型。比如，看看上面例子中第一個分界線后面的兩行--以Content-type: text/plain開頭的行。這些行說明后面的部分是ISO-8859-1字符集的純文本。跟在第二個分界線后的行告訴郵件程序現(xiàn)在的部分是一個HTML文件，它的名字是"attachment.html"。

Content-disposition這持告訴郵件程序如果可能就以內(nèi)嵌的方式顯示附件?，F(xiàn)在新的郵件程序會在消息后顯示HTML的內(nèi)容。如果Content-disposition被設(shè)為attachment，那么郵件程序就不會顯示HTML文件的內(nèi)容，而是顯示一個連接到文件的圖標（或其它的類似的東西）。收件人要看附件的內(nèi)容，必須點擊這個圖標。一般情況下，如果附件是一些文本（包含HTML），Content-disposition會被設(shè)為inline，這是因為現(xiàn)在大部分郵件程序能夠不借助其它瀏覽器而直接顯示附件（文本）的內(nèi)容。如果附件不是文本（比如圖片或其它類似的內(nèi)容），Content-disposition就設(shè)為attachment。

2. 用PHP生成帶附件的電子郵件

這里一個例子，告訴你如果把一個定義好的HTML文件加為郵件的附件：

<?php
# 我們首先寫實際的消息內(nèi)容
$emailBody = "This is text that goes into the body of the email.";

# 然后我們要作為附件的HTML文件
$attachment = "<html>
<head>
<title>The attached file</title>
</head>
<body>
<h2>This is the attached HTML file</h2>
</body>
</html>";

# 建立在郵件中分隔不同部分的分界線。
# 基本上，分界線可以是任意的字符串。
# 但是重要的一點是確定一個寫郵件的人
# 這會隨意寫出的字符串，所以我們用
# uniqid函數(shù)來產(chǎn)生一個隨機的字符串。
$boundary = uniqid( "");

# 現(xiàn)在我們要建立郵件頭。不要忘了插入
# Content-type頭來說明這個郵件包含一個或更多的附件。
$headers = "From: [email]someone@example.com[/email]
Content-type: multipart/mixed; boundary=\"$boundary\"";

# 好，現(xiàn)在我們已經(jīng)有了郵件的所有內(nèi)容。
# 下一件事是修改郵件的主體。
$emailBody = "--$boundary
Content-type: text/plain; charset=iso-8859-1
Content-transfer-encoding: 8bit

$emailBody

--$boundary
Content-type: text/html; name=attachment.html
Content-disposition: inline; filename=attachment.html
Content-transfer-encoding: 8bit

$attachment

--$boundary--";

# 現(xiàn)在可以把郵件發(fā)出去了
mail( "[email]person@eksempel.dk[/email]", "The subject", $emailBody, $headers);
?>



3. 把用戶上傳的文件作為附件

你也許會覺得上面的例子難以理解，但下面...。在下面的例子中事情更難了，因為我們要用一個表單讓用戶上傳他們的文件，并把這個文件作為我們要發(fā)的郵件的附件。麻煩的是我們不能預先知道文件的MIME類型。在前面的例子中，我們已經(jīng)知道該它是一個HTML文件，所以給這個附件設(shè)置Content-type頭是很簡單的。在下面的例子中，MIME類型可能是任意的，因為用戶可能會上傳一個HTML文件，一個PNG文件，一個vCard文件，或者其它的東西。讓我們來看看例子：

<?php
# 現(xiàn)在我們來生成表單。在產(chǎn)生可以上傳文件的表單時，
# 不要忘了把<form>標簽的"enctype"屬性設(shè)為"multipart/form-data".
echo "<form action='$PHP_SELF' enctype='multipart/form-data' method='post'>\n";
echo "<input type='text' name='from'><br>\n";
echo "<input type='text' name='to'><br>\n";
echo "<input type='text' name='subject'><br>\n";
echo "<input type='file' name='attachment'><br>\n";
echo "<textarea name='body'></textarea><br>\n";
echo "<input type='submit' name='send' value='Send'>\n";
echo "</form>\n";

# 如果用戶已經(jīng)按了"Send"按鈕"
if ($send) {
# 定義分界線
$boundary = uniqid( "");

# 生成郵件頭
$headers = "From: $from
Content-type: multipart/mixed; boundary=\"$boundary\"";

# 確定上傳文件的MIME類型
if ($attachment_type) $mimeType = $attachment_type;
# 如果瀏覽器沒有指定文件的MIME類型，
# 我們可以把它設(shè)為"application/unknown".
else $mimeType = "application/unknown";

# 確定文件的名字
$fileName = $attachment_name;

# 打開文件
$fp = fopen($attachment, "r");
# 把整個文件讀入一個變量
$read = fread($fp, filesize($attachment));

# 好，現(xiàn)在變量$read中保存的是包含整個文件內(nèi)容的文本塊。
# 現(xiàn)在我們要把這個文本塊轉(zhuǎn)換成郵件程序可以讀懂的格式
# 我們用base64方法把它編碼
$read = base64_encode($read);

# 現(xiàn)在我們有一個用base64方法編碼的長字符串。
# 下一件事是要把這個長字符串切成由每行76個字符組成的小塊
$read = chunk_split($read);

# 現(xiàn)在我們可以建立郵件的主體
$body = "--$boundary
Content-type: text/plain; charset=iso-8859-1
Content-transfer-encoding: 8bit

$body

--$boundary
Content-type: $mimeType; name=$fileName
Content-disposition: attachment; filename=$fileName
Content-transfer-encoding: base64

$read

--$boundary--";

# 發(fā)送郵件
mail($to, $subject, $body, $headers);
}
?>


這就是全部內(nèi)容。如果你不能很好地理解上面的例子，我的建議是給你自己發(fā)送幾個帶附件的郵件，然后仔細研究郵件的源代碼。