PHP郵件專題

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 操作發送MIME 類型的郵件，可以發送
HTML 格式的正文、附件，采用base64 編碼
本版本是針對個人的發送，與多人群發版本不同的是，每發送到一個人，就重新進行一次編碼，在接收端的用戶看來，只是發送給他一個人的。
針對多人群發的情況，只發送一次，通過多個RCPTTO命令發送到不同的人信箱中，
說明：
請把$hostname 設為你有權限的默認smtp 服務器或是在new 時指定
把$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";
並連上網，以保證程序能讀取到圖片的數據信息
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

轉載請保留此版權信息，Bugs Report : [email][email protected][/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)
{
$this->err_str="沒有連接到任何服務器，請檢查網絡連接";
return false;
}
if ($this->debug)
$this->outdebug(">>> $command");
if (!fputs($this->connection,"$command \r\n"))
{
$this->err_str="無法發送命令".$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);
// 把圖片數據讀出來保存到一個數據；

$img_file_con=fopen($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";

}// 對於是否 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);//如果不是數組，轉換成數組，哪怕只有一個發送對象;
if (gettype($to_name)!="array")
$to_name=split(",",$to_name);//如果不是數組，轉換成數組，哪怕只有一個發送對象;

$this->Buildbody($text_body,$html_body,$att);
// 所有信件的內容是一樣的，可以只編一次，而對於不同的收信人，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 (!$this->command("DATA",3,"354")) return false;
// 准備發送郵件
if ($this->debug) $this->outdebug("sending subject;");
if (!fputs($this->connection,$this->subject)) {$this->err_str="發送郵件頭時出錯！";return false;}
if ($this->debug) $this->outdebug("sending body;");
if (!fputs($this->connection,$this->body)) {$this->err_str="發送正文時出錯！";return false;}
if (!fputs($this->connection,".\r\n")) {$this->err_str="發送正文時出錯！";return false;}//正文發送完畢，退出；
$resp=fgets($this->connection,256);
if($this->debug)
$this->outdebug("$resp");
if (substr($resp,0,1)!="2")
{
$this->err_str="發送完後，服務器沒有響應！！";
return false;
}
// 發送郵件
}
if (!$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][email protected][/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][email protected][/email]";
$mail->headers = "Errors-To: [email][email protected][/email]";
$mail->to = "[email][email protected][/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][email protected][/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
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 $this->username."@wells.com的收件箱裡共有郵件數：".$mboxinfo->Nmsgs."<br>\n";
echo "未讀郵件數：".$mboxinfo->Unread."";
echo "新郵件數：".$mboxinfo->Recent." ";
echo "總共占用空間：".$mboxinfo->Size."字節<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 "您的信箱裡沒有郵件。<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</td><td width=24> </td><td>發件人</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) >= $last_page)
echo "<td>後一頁</td>\n";
else
echo "<td><a href=\"mail_list.php?page=$next_page\">後一頁</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 . "\\文本內容.txt";
$fp = fopen($att_path,"w");
fputs($fp,$content);
fclose($fp);
$this->attach[$this->num_of_attach]="文本內容.txt";
$this->num_of_attach++;
}

echo $content;

}

if ($full_mime_type=="text/html"){
$att_path = $this->username . "\\超文本內容.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();
?>


如何發送附件（轉）   
我經常聽到這樣一個問題："我有一個從網站發來的合同。我如何給通過表單發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麼簡單的辦法。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的網站的賬號。如果滿足了這個前提，在你讀完了本章後就可以用PHP發送帶附件的電子郵件了。

1. 附件是如何工作的

如果你曾經在PHP的手冊中搜索過"附件"函數，那麼結果可能是什麼都沒有（至少在我寫本文的時間還沒有）。後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裡的（比如，如果你給他/她發了一個PNG的圖片文件，他/她的信箱裡會包含一個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換成純文本文件，並在你寫的內容（實際的電子郵件）後面插入這個文本塊。這個，當你把所有的東西發出來後，收件人的信箱裡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。我已經標注了其中重要的幾行：

Return-Path: <[email][email protected][/email]>
Date: Mon, 22 May 2000 19:17:29 +0000
From: Someone <[email][email protected][/email]>
To: Person <[email][email protected][/email]>
Message-id: <[email][email protected][/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。最後一個分界線後也有兩個連字號，表示這個郵件中沒有其它的部分了。

在每個分界線後有一些行，用來告訴郵件程序這個部分的內容的類型。比如，看看上面例子中第一個分界線後面的兩行--以Content-type: text/plain開頭的行。這些行說明後面的部分是ISO-8859-1字符集的純文本。跟在第二個分界線後的行告訴郵件程序現在的部分是一個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嵌的方式顯示附件。現在新的郵件程序會在消息後顯示HTML的內容。如果Content-disposition被設為attachment，那麼郵件程序就不會顯示HTML文件的內容，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會被設為inline，這是因為現在大部分郵件程序能夠不借助其它浏覽器而直接顯示附件（文本）的內容。如果附件不是文本（比如圖片或其它類似的內容），Content-disposition就設為attachment。

2. 用PHP生成帶附件的電子郵件

這裡一個例子，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容
$emailBody = "This is text that goes into the body of the email.";

# 然後我們要作為附件的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函數來產生一個隨機的字符串。
$boundary = uniqid( "");

# 現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。
$headers = "From: [email][email protected][/email]
Content-type: multipart/mixed; boundary=\"$boundary\"";

# 好，現在我們已經有了郵件的所有內容。
# 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--";

# 現在可以把郵件發出去了
mail( "[email][email protected][/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，並把這個文件作為我們要發的郵件的附件。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，我們已經知道該它是一個HTML文件，所以給這個附件設置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
# 現在我們來生成表單。在產生可以上傳文件的表單時，
# 不要忘了把<form>標簽的"enctype"屬性設為"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;
# 如果浏覽器沒有指定文件的MIME類型，
# 我們可以把它設為"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，現在變量$read中保存的是包含整個文件內容的文本塊。
# 現在我們要把這個文本塊轉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--";

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


這就是全部內容。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送幾個帶附件的郵件，然後仔細研究郵件的源代碼。