[PHP] MIME邮件协议的multipart类型

邮件协议中的三种情况,对应下面的三种类型

multipart/mixed可以包含附件。
multipart/related可以包含内嵌资源。
multipart/alternative 纯文本与超文本共存

1.纯文本的,只需要一块content-type块,不需要multipart块

Date: Tue, 16 Apr 2019 17:35:19 +0800
Received: from shihan2@sopans.com([]) by  via HTTP;
 Tue, 16 Apr 2019 17:35:19 +0800 (CST)
Reply-To: shihan2@sopans.com
From: <shihan2@sopans.com>
To: shihan2@sopans.com
Subject: =?GBK?B?ztLAtLLiytQ=?=
MIME-Version: 1.0
X-Priority: 3
X-MessageID: 1555407319.5028.10108
X-Originating-IP: []
X-Mailer: Sina WebMail 4.0
X-Sina-Mid: 044D8EB6F6EF3F6FAE1A32D8B0930F609000000000000002
Content-Type: text/plain; charset=GBK
Content-Transfer-Encoding: base64

aGVsbG8=

2.内容是html的要加两块content-type块内容,一块是html一块是纯文本,并且要增加一块multipart类型块

Date: Tue, 16 Apr 2019 17:36:41 +0800
Received: from shihan2@sopans.com([]) by  via HTTP;
 Tue, 16 Apr 2019 17:36:41 +0800 (CST)
Reply-To: shihan2@sopans.com
From: <shihan2@sopans.com>
To: shihan2@sopans.com
Subject: =?GBK?B?ztLAtLLiytQ=?=
MIME-Version: 1.0
X-Priority: 3
X-MessageID: 1555407401.2205.10152
X-Originating-IP: []
X-Mailer: Sina WebMail 4.0
X-Sina-Mid: 044D8EB6F6EF3F6FAE1A32D8B0930F609000000000000002
Content-Type: multipart/alternative;
         boundary="=-sinamail_alt_849bb6f96e7dc06cb99a08e3f9c84179"

--=-sinamail_alt_849bb6f96e7dc06cb99a08e3f9c84179
Content-Type: text/plain;
        charset=GBK
Content-Transfer-Encoding: base64
Content-Disposition: inline

aGVsbG8=


--=-sinamail_alt_849bb6f96e7dc06cb99a08e3f9c84179
Content-Type: text/html;
        charset=GBK
Content-Transfer-Encoding: base64
Content-Disposition: inline

PGgxPmhlbGxvPC9oMT4=


--=-sinamail_alt_849bb6f96e7dc06cb99a08e3f9c84179--

3.有附件的话,还会增加下面两种multipart类型

Date: Tue, 16 Apr 2019 17:38:47 +0800
Received: from shihan2@sopans.com([]) by  via HTTP;
 Tue, 16 Apr 2019 17:38:47 +0800 (CST)
Reply-To: shihan2@sopans.com
From: <shihan2@sopans.com>
To: shihan2@sopans.com
Subject: =?GBK?B?ztLAtLLiytQ=?=
MIME-Version: 1.0
X-Priority: 3
X-MessageID: 1555407527.4947.4232
X-Originating-IP: []
X-Mailer: Sina WebMail 4.0
X-Sina-Mid: 044D8EB6F6EF3F6FAE1A32D8B0930F609000000000000002
Content-Type: multipart/mixed;
         boundary="=-sinamail_mix_fe895d50cd0d0669bb8a7eb8c697db19"

--=-sinamail_mix_fe895d50cd0d0669bb8a7eb8c697db19
Content-Type: multipart/alternative;
         boundary="=-sinamail_alt_f50efff67f5369967ea1a6c77020a1e7"

--=-sinamail_alt_f50efff67f5369967ea1a6c77020a1e7
Content-Type: text/plain;
        charset=GBK
Content-Transfer-Encoding: base64
Content-Disposition: inline

aGVsbG8=


--=-sinamail_alt_f50efff67f5369967ea1a6c77020a1e7
Content-Type: text/html; charset=GBK
Content-Transfer-Encoding: base64
Content-Disposition: inline

PGgxPmhlbGxvPC9oMT4=


--=-sinamail_alt_f50efff67f5369967ea1a6c77020a1e7--

--=-sinamail_mix_fe895d50cd0d0669bb8a7eb8c697db19
Content-Type: application/octet-stream; name="=?GBK?B?MS5sb2c=?="
Content-Disposition: attachment; filename="=?GBK?B?MS5sb2c=?="
Content-Transfer-Encoding: base64

MXwyNTAgUElQRUxJTklORw0K


--=-sinamail_mix_fe895d50cd0d0669bb8a7eb8c697db19--

下面的代码是php组合mime邮件协议的类库

<?php
/**
 * RFC 822: CR LF
 * character "CR":hex value 0D
 * character "LF":hex value 0A
 * @var string
 */
define("CRLF", "
");

/**
 * RFC 2822: 2.1.1. Line Length Limits
 * @var int
 */
define("MIME_LINE_LENGTH_LIMIT", 76);

class MimeMail
{

    /**
     * the charset of the email
     * @var string
     */
    var $_mail_charset = 'GBK';
    var $_mail_text_charset = 'GBK';
    /**
     * the subject of the email
     * @var string
     */
    var $_mail_subject = '';
    /**
     * the From address including display-name of the email
     * @var string
     */
    var $_mail_from = '';
    /**
     * Just keep the address of from
     *
     * @var string
     */
    var $_mail_from_addr = '';
    /**
     * the sender Address  of the email
     * @var string
     */
    var $_mail_sender = '';
    /**
     * the To Address list of the email
     * @var string
     */
    var $_mail_to = '';
    /**
     * the Cc Address list of the email
     * @var string
     */
    var $_mail_cc = '';
    /**
     * the Bcc Address list of the email
     * @var string
     */
    var $_mail_bcc = '';
    /**
     * the priority of the email
     * @var int, default 3
     */
    var $_mail_priority = 3;
    /**
     * need notification or not
     * @var string
     */
    var $_mail_needReply = false;
    /**
     * 回复地址
     * @var <string>
     */
    var $_mail_replyTo = '';
    /**
     * notification address of the email
     * @var string
     */
    var $_mail_notificationTo = '';
    /**
     * message id
     * @var string
     */
    var $_mail_messageId = '';
    /**
     * the text body of the email
     * @var string
     */
    var $_mail_textBody = '';
    /**
     * the html body of the email
     * @var string
     */
    var $_mail_htmlBody = '';
    var $_mail_BodyType = '';
    /**
     * the default body content-type
     * @var string
     */
    var $_mail_type = '';
    /**
     * the header of the email
     * @var string
     */
    var $_mail_header = '';
    /**
     * the body of the email
     * @var string
     */
    var $_mail_body = '';
    /**
     * 	附件信息数组（附件所在路径、附件名称、附件类型）
     */
    var $aAttachments = array();
    /**
     * the encode attachments of the email
     * @var array
     */
    var $_mail_subpart_attachments = array();
    /**
     * the attachments  index of the email
     * @var array
     */
    var $_mail_attachments_index = 0;
    /**
     * count of embedded attachments
     * @var int
     */
    var $_mail_embedded_count = 0;
    /**
     * the boundary for 'multipart/mixed' type
     * @var string
     */
    var $_mail_boundary_mix = '';
    /**
     * the boundary for 'multipart/related'type
     * @var string
     */
    var $_mail_boundary_rel = '';
    /**
     * the boundary for 'multipart/alternative' type
     * @var array
     */
    var $_mail_boundary_alt = '';
    /**
     * 用户自定义邮件头
     *
     * @var array
     */
    var $_mail_userHeaders = array();
    var $mime_types = array(
        'gif' => 'image/gif',
        'jpg' => 'image/jpeg',
        'jpeg' => 'image/jpeg',
        'jpe' => 'image/jpeg',
        'bmp' => 'image/bmp',
        'png' => 'image/png',
        'tif' => 'image/tiff',
        'tiff' => 'image/tiff',
        'swf' => 'application/x-shockwave-flash',
        'doc' => 'application/msword',
        'xls' => 'application/vnd.ms-excel',
        'ppt' => 'application/vnd.ms-powerpoint',
        'pdf' => 'application/pdf',
        'ps' => 'application/postscript',
        'eps' => 'application/postscript',
        'rtf' => 'application/rtf',
        'bz2' => 'application/x-bzip2',
        'gz' => 'application/x-gzip',
        'tgz' => 'application/x-gzip',
        'tar' => 'application/x-tar',
        'zip' => 'application/zip',
        'html' => 'text/html',
        'htm' => 'text/html',
        'txt' => 'text/plain',
        'css' => 'text/css',
        'js' => 'text/javascript',
        'eml' => 'message/rfc822'
    );

    var $_mail_clientIp = '';

    /**
     * MimeMail 构造函数
     *
     */
    function MimeMail()
    {
        $this->_mail_messageId = sprintf('%s.%s', microtime(true), getmypid());
        $this->_mail_boundary_mix = "=-sinamail_mix_" . md5(uniqid(rand(), true));
        $this->_mail_boundary_rel = "=-sinamail_rel_" . md5(uniqid(rand(), true));
        $this->_mail_boundary_alt = "=-sinamail_alt_" . md5(uniqid(rand(), true));
        //$this->_mail_sended_index = 0 ;
    }

    /**
     * Get message id
     *
     * @return string
     */
    function getMessageID()
    {
        return $this->_mail_messageId;
    }

    function convEnc($s, $charset = 'GBK')
    {
        if ($charset == 'UTF-8') {
            return array($s, 'UTF-8');
        }

        if ($charset == 'GBK' && preg_match('/[^x00-x7fx{3000}-x{303F}x{4e00}-x{9fff}x{ff00}-x{ffef}]/u', $s)) {
            return array($s, 'UTF-8');
        }

        $es = mb_convert_encoding($s, $charset, 'UTF-8');
        if ($es === false) {
            return array($s, 'UTF-8');
        } else {
            return array($es, $charset);
        }
    }

    function getClientIp()
    {
        if (!$this->_mail_clientIp) {
            $ip = isset($_SERVER['HTTP_X_FORWARDED_FOR']) ? $_SERVER['HTTP_X_FORWARDED_FOR'] : '';
            if (!$ip) {
                $ip = isset($_SERVER['REMOTE_ADDR']) ? $_SERVER['REMOTE_ADDR'] : '';
            }

            $a = explode('|', str_replace(',', '|', $ip));
            $this->_mail_clientIp = trim($a[0]);
        }
        return $this->_mail_clientIp;
    }

    function setClientIp($ip)
    {
        $this->_mail_clientIp = $ip;
    }

    /**
     * 取得用户自定义邮件头
     *
     * @param string $name
     * @return mixed
     */
    function getUserHeader($name = '')
    {
        if (!$name) {
            return $this->_mail_userHeaders;
        }

        return (isset($this->_mail_userHeaders[$name]) ? $this->_mail_userHeaders[$name] : false);
    }

    /**
     * 设置用户自定义邮件头
     *
     * @param mixed $value
     * @param string $name
     */
    function setUserHeader($value, $name = '')
    {
        $d = array();
        if ($name == '') {
            if (is_array($value)) {
                $d = $value;
            } else {
                return;
            }
        } else {
            $d[$name] = $value;
        }

        foreach ($d as $k => $v) {
            if (is_scalar($v)) {
                $this->_mail_userHeaders[$k] = $v;
            }
        }
    }

    /**
     * 设置邮件主题
     * @param string $subject 邮件主题
     *
     */
    function setSubject($subject)
    {
        if (!is_null($subject)) {
            if (!$this->isBig($subject)) {
                $this->_mail_subject = $subject;
            } else {
                list($subject, $charset) = $this->convEnc($subject);
                $this->_mail_subject
                        = '=?' . $charset . '?B?' . base64_encode($subject) . '?=';
            }
        }
    }

    /**
     * 设置真实发信地址
     *
     * @param string $sender
     */
    function setSender($sender)
    {
        $this->_mail_sender = $sender;
    }

    /**
     * 设置发件人
     * @param string $from 发件人邮件地址
     * 	@param string $nickname 发件人昵称
     *
     */
    function setFrom($from, $nickname = '')
    {
        $this->_mail_from_addr = $from;
        if ('' == $nickname) {
            $this->_mail_from = '<' . $from . '>';
        } else {
            if ($this->isBig($nickname)) {
                list($nickname, $charset) = $this->convEnc($nickname);

                $this->_mail_from = sprintf(""=?%s?B?%s?=" <%s>", $charset, base64_encode($nickname), $from);
            } else {
                $this->_mail_from = '"' . $nickname . '" <' . $from . '>';
            }
        }
    }

    /**
     * 设置收件人邮件列表
     * @param string $to 收件人邮件地址
     *
     */
    function setTo($mail_to)
    {
        if (!is_null($mail_to)) {
            list($mail_to, $charset) = $this->convEnc($mail_to);
            $this->_mail_to = $this->_encodeAddr($mail_to, $charset);
        }
    }

    /**
     * 设置抄送邮件列表
     * @param string $mail_cc 抄送邮件地址列表
     *
     */
    function setCc($mail_cc)
    {
        if (!is_null($mail_cc)) {
            list($mail_cc, $charset) = $this->convEnc($mail_cc);
            $this->_mail_cc = $this->_encodeAddr($mail_cc, $charset);
        }
    }

    /**
     * 设置密送邮件列表
     * @param string $mail_bcc 密送邮件地址列表
     *
     */
    function setBcc($mail_bcc)
    {
        if (!is_null($mail_bcc)) {
            list($mail_bcc, $charset) = $this->convEnc($mail_bcc);
            $this->_mail_bcc = $this->_encodeAddr($mail_bcc, $charset);
        }
    }

    /**
     * 设置邮件正文类型
     * @param string $text_type 邮件正文类型
     *
     */
    function setBodyType($text_type)
    {
        if ($text_type == 'html')
            $this->_mail_BodyType = $text_type;
        else
            $this->_mail_BodyType = "plain";
    }

    /**
     * 设置邮件优先级别
     * @param string $priority 邮件优先级别
     *
     */
    function setPriority($priority = 3)
    {
        $priority = !is_null($priority) ? $priority : 3;
        $this->_mail_priority = $priority;
    }

    /**
     * 设置邮件优先级别
     * @param string $isNeedReply 是否需要读信回执
     * @param string $addr_notificationTo 回执邮件地址
     */
    function setNotificationTo($isNeedReply = false, $addr_notificationTo = '')
    {
        if ($isNeedReply == true) {
            $this->_mail_needReply = $isNeedReply;

            if (empty($addr_notificationTo))
                $this->_mail_notificationTo = $this->_mail_sender;
            else
                $this->_mail_notificationTo = $addr_notificationTo;
        }
    }

    /**
     * 设置邮件回复信息
     * @param <string> $replyTo
     */
    function setReplyTo($replyTo)
    {
        $this->_mail_replyTo = $replyTo;
    }

    /**
     * 添加文本格式正文
     * @param string $text 文本格式正文
     */
    function addTextBody($text)
    {
        list($text, $charset) = $this->convEnc($text, $this->_mail_text_charset);
        if ($charset != $this->_mail_text_charset) {
            $this->_mail_textBody = mb_convert_encoding($this->_mail_textBody, $charset, $this->_mail_text_charset);
            $this->_mail_text_charset = $charset;
        }
        $this->_mail_textBody .= $text;
    }

    /**
     * 添加html格式正文
     * @param string $html html格式正文
     */
    function addHtmlBody($html)
    {
        list($html, $charset) = $this->convEnc($html, $this->_mail_charset);
        if ($charset != $this->_mail_charset) {
            $this->_mail_htmlBody = mb_convert_encoding($this->_mail_htmlBody, $charset, $this->_mail_charset);
            $this->_mail_charset = $charset;
        }
        $this->_mail_htmlBody .= $html;
    }

    function & getSendMailText($to = null)
    {
        $msg = '';
        if (!empty($this->_mail_userHeaders['sina-sendseparate'])) {
            if ($to) {
                $header = str_replace('<{$_mail_to}>', $this->_splitAddrList($to), $this->_mail_header);
            } else {
                $header = str_replace('<{$_mail_to}>', $this->_splitAddrList($this->_mail_to), $this->_mail_header);
            }
            $msg = $header . CRLF . CRLF . $this->_mail_body;
        } else {
            $msg = $this->_mail_header . CRLF . CRLF . $this->_mail_body;
        }
        return $msg;
    }

    /*
     * 	生成邮件header
     * @param string $mailContentType 邮件content-type
     * 	@return string mailHeader
     */

    function _buildHeader($mailContentType)
    {
        //$this->_mail_header = 'Return-path: ' . $this->_mail_sender . CRLF;
        $this->_mail_header =
                'Date: ' . date("D, d M Y H:i:s") . " +0800 " . CRLF;

        $this->_mail_header .=
                'Received: from ' . $this->_mail_sender . '([' . $this->getClientIp() . ']) by '
                . $_SERVER['HTTP_HOST'] . ' via HTTP;' . CRLF
                . ' ' . date("D, d M Y H:i:s") . " +0800 (CST)" . CRLF;

        $replyTo = (!empty($this->_mail_replyTo)) ? $this->_mail_replyTo : $this->_mail_sender;
        $this->_mail_header .= 'Reply-To: ' . $replyTo . CRLF;

        if (strcasecmp($this->_mail_sender, $this->_mail_from_addr) != 0) {
            $this->_mail_header .= 'Sender: ' . $this->_mail_sender . CRLF;
        }

        if (!is_null($this->_mail_from))
            $this->_mail_header .=
                    "From: " . $this->_splitAddrList($this->_mail_from) . CRLF;

        if (!empty($this->_mail_userHeaders['sina-sendseparate'])) {
            $this->_mail_header .= 'To: <{$_mail_to}>' . CRLF;
        } else {
            if (!is_null($this->_mail_to))
                $this->_mail_header .=
                        "To: " . $this->_splitAddrList($this->_mail_to) . CRLF;
        }

        if (!empty($this->_mail_cc))
            $this->_mail_header .=
                    "Cc: " . $this->_splitAddrList($this->_mail_cc) . CRLF;

        if (!empty($this->_mail_bcc))
            $this->_mail_header .= "Bcc: " . $this->_splitAddrList($this->_mail_bcc) . CRLF;

        if (!is_null($this->_mail_subject))
            $this->_mail_header .= "Subject: " . $this->_mail_subject . CRLF;

        $this->_mail_header .= "MIME-Version: 1.0" . CRLF;
        $this->_mail_header .= "X-Priority: " . $this->_mail_priority . CRLF;

        if ($this->_mail_needReply == true)
            $this->_mail_header .=
                    "Disposition-Notification-To: " . $this->_mail_notificationTo . CRLF;

        $this->_mail_header .= 'X-MessageID: ' . $this->_mail_messageId . CRLF;

        $this->_mail_header .= 'X-Originating-IP: [' . $_SERVER["SERVER_ADDR"] . "]" . CRLF;
        $this->_mail_header .= "X-Mailer: Sina WebMail 4.0" . CRLF;

        foreach ($this->_mail_userHeaders as $k => $v) {
            $hn = str_replace(' ', '-', ucwords(str_replace('-', ' ', $k)));
            $this->_mail_header .= "X-$hn: $v" . CRLF;
        }

        $this->_mail_header .= $mailContentType;
    }

    /*
     * 	生成邮件体
     * 	@return bool 成功返回0，失败返回错误代码
     *
     */

    function buildBody()
    {

        /*
          $b_attachments 		= ($this->_mail_attachments	> 0 )			? true : false;
          $b_imgAttachments = (count($this->attachments_img) > 0)	? true : false;
          $b_htmlBody       = !empty($this->_htmlbody)             ? true : false;
          $b_textBody       = (!$html AND !empty($this->_txtbody)) ? true : false;
         */

        if (count($this->aAttachments) > 0) {
            foreach ($this->aAttachments as $a_AttFile) {
                if (!$this->_getAttachment($a_AttFile['attFilePath'], $a_AttFile['attName'], $a_AttFile['attType'], $a_AttFile['attEmbedded'])) {
                    return false;
                }
            }
        }

        switch ($this->_parseElements()) {
            case 1:  //text/plain
                $this->_buildHeader("Content-Type: text/plain; charset=$this->_mail_text_charset
Content-Transfer-Encoding: base64");
                $this->_mail_body = $this->_getTextMailBody();
                break;

            case 3:  //text/plain && text/html
                $this->_buildHeader("Content-Type: multipart/alternative;
	 boundary="$this->_mail_boundary_alt"");
                $this->_mail_body = "--" . $this->_mail_boundary_alt . CRLF;
                $this->_mail_body .=
                        "Content-Type: text/plain;
	charset=$this->_mail_text_charset" . CRLF;

                $this->_mail_body .= "Content-Transfer-Encoding: base64" . CRLF;
                $this->_mail_body .= "Content-Disposition: inline" . CRLF . CRLF;
                $this->_mail_body .= $this->_getTextMailBody() . CRLF . CRLF;
                $this->_mail_body .= "--" . $this->_mail_boundary_alt . CRLF;

                $this->_mail_body .=
                        "Content-Type: text/html; 
	charset=$this->_mail_charset" . CRLF;
                $this->_mail_body .= "Content-Transfer-Encoding: base64" . CRLF;
                $this->_mail_body .= "Content-Disposition: inline" . CRLF . CRLF;
                $this->_mail_body .= $this->_getHtmlMailBody() . CRLF . CRLF;
                $this->_mail_body .= "--" . $this->_mail_boundary_alt . "--" . CRLF;
                break;

            case 5:  // text/plain && attachments
                $this->_buildHeader("Content-Type: multipart/mixed;
	 boundary="$this->_mail_boundary_mix"");
                $this->_mail_body = "--" . $this->_mail_boundary_mix . CRLF;
                $this->_mail_body .=
                        "Content-Type: text/plain;
	charset=$this->_mail_text_charset" . CRLF;
                $this->_mail_body .= "Content-Transfer-Encoding: base64" . CRLF;
                $this->_mail_body .= "Content-Disposition: inline" . CRLF . CRLF;
                $this->_mail_body .= $this->_getTextMailBody() . CRLF . CRLF;

                foreach ($this->_mail_subpart_attachments as $value) {
                    $this->_mail_body .= "--" . $this->_mail_boundary_mix . CRLF;
                    $this->_mail_body .=
                            "Content-Type: " . $value['type'] . "; name="" . $value['name'] . """ . CRLF;
                    $this->_mail_body .=
                            "Content-Disposition: attachment; filename="" . $value['name'] . """ . CRLF;
                    if ($value['type'] == 'message/rfc822') {
                        $this->_mail_body .= "Content-Transfer-Encoding: 8bit" . CRLF . CRLF;
                    } else {
                        $this->_mail_body .= "Content-Transfer-Encoding: base64" . CRLF . CRLF;
                    }
                    $this->_mail_body .= $value['content'] . CRLF . CRLF;
                }

                $this->_mail_body .= "--" . $this->_mail_boundary_mix . "--" . CRLF;
                break;

            case 7:  //text/plain && text/html && attachment
                $this->_buildHeader("Content-Type: multipart/mixed;
	 boundary="$this->_mail_boundary_mix"");
                $this->_mail_body = "--" . $this->_mail_boundary_mix . CRLF;
                $this->_mail_body .= "Content-Type: multipart/alternative;
	 boundary="$this->_mail_boundary_alt"" . CRLF . CRLF;
                $this->_mail_body .= "--" . $this->_mail_boundary_alt . CRLF;
                $this->_mail_body .= "Content-Type: text/plain;
	charset=$this->_mail_text_charset" . CRLF;
                $this->_mail_body .= "Content-Transfer-Encoding: base64" . CRLF;
                $this->_mail_body .= "Content-Disposition: inline" . CRLF . CRLF;
                $this->_mail_body .= $this->_getTextMailBody() . CRLF . CRLF;
                $this->_mail_body .= "--" . $this->_mail_boundary_alt . CRLF;

                $this->_mail_body .= "Content-Type: text/html; charset=$this->_mail_charset" . CRLF;
                $this->_mail_body .= "Content-Transfer-Encoding: base64" . CRLF;
                $this->_mail_body .= "Content-Disposition: inline" . CRLF . CRLF;
                $this->_mail_body .= $this->_getHtmlMailBody() . CRLF . CRLF;
                $this->_mail_body .= "--" . $this->_mail_boundary_alt . "--" . CRLF . CRLF;

                foreach ($this->_mail_subpart_attachments as $value) {
                    $this->_mail_body .= "--" . $this->_mail_boundary_mix . CRLF;
                    $this->_mail_body .= "Content-Type: " . $value['type'] . "; name="" . $value['name'] . """ . CRLF;
                    $this->_mail_body .= "Content-Disposition: attachment; filename="" . $value['name'] . """ . CRLF;
                    if ($value['type'] == 'message/rfc822') {
                        $this->_mail_body .= "Content-Transfer-Encoding: 8bit" . CRLF . CRLF;
                    } else {
                        $this->_mail_body .= "Content-Transfer-Encoding: base64" . CRLF . CRLF;
                    }
                    $this->_mail_body .= $value['content'] . CRLF . CRLF;
                }
                $this->_mail_body .= "--" . $this->_mail_boundary_mix . "--" . CRLF;
                break;

            case 11:
                $this->_buildHeader("Content-Type: multipart/related; type="multipart/alternative";
	 boundary="$this->_mail_boundary_rel"");
                $this->_mail_body = "--" . $this->_mail_boundary_rel . CRLF;
                $this->_mail_body .= "Content-Type: multipart/alternative;
	 boundary="$this->_mail_boundary_alt"" . CRLF . CRLF;
                $this->_mail_body .= "--" . $this->_mail_boundary_alt . CRLF;
                $this->_mail_body .= "Content-Type: text/plain;
	charset=$this->_mail_text_charset" . CRLF;
                $this->_mail_body .= "Content-Transfer-Encoding: base64" . CRLF;
                $this->_mail_body .= "Content-Disposition: inline" . CRLF . CRLF;
                $this->_mail_body .= $this->_getTextMailBody() . CRLF . CRLF;
                $this->_mail_body .= "--" . $this->_mail_boundary_alt . CRLF;

                $this->_mail_body .= "Content-Type: text/html; charset=$this->_mail_charset" . CRLF;
                $this->_mail_body .= "Content-Transfer-Encoding: base64" . CRLF;
                $this->_mail_body .= "Content-Disposition: inline" . CRLF . CRLF;
                $this->_mail_body .= $this->_getHtmlMailBody() . CRLF . CRLF;
                $this->_mail_body .= "--" . $this->_mail_boundary_alt . "--" . CRLF . CRLF;

                foreach ($this->_mail_subpart_attachments as $value) {
                    if ($value['embedded']) {
                        $this->_mail_body .= "--" . $this->_mail_boundary_rel . CRLF;
                        $this->_mail_body .= "Content-ID: <" . $value['embedded'] . ">" . CRLF;
                        $this->_mail_body .= "Content-Type: " . $value['type'] . "; name="" . $value['name'] . """ . CRLF;
                        $this->_mail_body .= "Content-Disposition: attachment; filename="" . $value['name'] . """ . CRLF;
                        $this->_mail_body .= "Content-Transfer-Encoding: base64" . CRLF . CRLF;
                        $this->_mail_body .= $value['content'] . CRLF . CRLF;
                    }
                }
                $this->_mail_body .= "--" . $this->_mail_boundary_rel . "--" . CRLF;
                break;

            case 15:
                $this->_buildHeader("Content-Type: multipart/mixed;
	 boundary="$this->_mail_boundary_mix"");
                $this->_mail_body .= "--" . $this->_mail_boundary_mix . CRLF;

                $this->_mail_body .= "Content-Type: multipart/related; type="multipart/alternative"; boundary="$this->_mail_boundary_rel"" . CRLF . CRLF;
                $this->_mail_body .= "--" . $this->_mail_boundary_rel . CRLF;

                $this->_mail_body .= "Content-Type: multipart/alternative;
	 boundary="$this->_mail_boundary_alt"" . CRLF . CRLF;
                $this->_mail_body .= "--" . $this->_mail_boundary_alt . CRLF;

                $this->_mail_body .= "Content-Type: text/plain; charset=$this->_mail_text_charset" . CRLF;
                $this->_mail_body .= "Content-Transfer-Encoding: base64" . CRLF;
                $this->_mail_body .= "Content-Disposition: inline" . CRLF . CRLF;
                $this->_mail_body .= $this->_getTextMailBody() . CRLF . CRLF;
                $this->_mail_body .= "--" . $this->_mail_boundary_alt . CRLF;

                $this->_mail_body .= "Content-Type: text/html; charset=$this->_mail_charset" . CRLF;
                $this->_mail_body .= "Content-Transfer-Encoding: base64" . CRLF;
                $this->_mail_body .= "Content-Disposition: inline" . CRLF . CRLF;
                $this->_mail_body .= $this->_getHtmlMailBody() . CRLF . CRLF;
                $this->_mail_body .= "--" . $this->_mail_boundary_alt . "--" . CRLF . CRLF;

                foreach ($this->_mail_subpart_attachments as $value) {
                    if ($value['embedded']) {
                        $this->_mail_body .= "--" . $this->_mail_boundary_rel . CRLF;
                        $this->_mail_body .= "Content-ID: <" . $value['embedded'] . ">" . CRLF;
                        $this->_mail_body .= "Content-Type: " . $value['type'] . "; name="" . $value['name'] . """ . CRLF;
                        $this->_mail_body .= "Content-Disposition: attachment; filename="" . $value['name'] . """ . CRLF;
                        $this->_mail_body .= "Content-Transfer-Encoding: base64" . CRLF . CRLF;
                        $this->_mail_body .= $value['content'] . CRLF . CRLF;
                    }
                }
                $this->_mail_body .= "--" . $this->_mail_boundary_rel . "--" . CRLF . CRLF;

                foreach ($this->_mail_subpart_attachments as $value) {
                    if (!$value['embedded']) {
                        $this->_mail_body .= "--" . $this->_mail_boundary_mix . CRLF;
                        $this->_mail_body .= "Content-Type: " . $value['type'] . "; name="" . $value['name'] . """ . CRLF;
                        $this->_mail_body .= "Content-Disposition: attachment; filename="" . $value['name'] . """ . CRLF;
                        //$this->_mail_body .= "Content-Transfer-Encoding: base64" . CRLF . CRLF;
                        if ($value['type'] == 'message/rfc822') {
                            $this->_mail_body .= "Content-Transfer-Encoding: 8bit" . CRLF . CRLF;
                        } else {
                            $this->_mail_body .= "Content-Transfer-Encoding: base64" . CRLF . CRLF;
                        }
                        $this->_mail_body .= $value['content'] . CRLF . CRLF;
                    }
                }
                $this->_mail_body .= "--" . $this->_mail_boundary_mix . "--" . CRLF;
                break;

            default:
                return false;
        }
        //$this->sended_index++;
        return true;
    }

    /*
     * 	分析content-type
     * @param string $mailContentType 邮件content-type
     * 	@return string mailHeader
     */

    function _parseElements()
    {
        if ($this->_mail_BodyType == "html") {
            $this->_mail_type = 3;
            if (!empty($this->mail_html)) {
                if (empty($this->mail_text))
                    $this->mail_text = $this->htmlToText($this->mail_html);
            }
        }
        else
            $this->_mail_type = 1;

        if ($this->_mail_attachments_index != 0) {
            if ($this->_mail_type == 3 && $this->_mail_embedded_count > 0) {
                $this->_mail_type = $this->_mail_type + 8;
                if ((count($this->aAttachments) - $this->_mail_embedded_count) >= 1) {
                    $this->_mail_type = $this->_mail_type + 4;
                }
            } else if (count($this->aAttachments) > 0) {
                $this->_mail_type = $this->_mail_type + 4;
            }
        }
        return $this->_mail_type;
    }

    /**
     * 添加附件
     * @param string $attFile 附件文件绝对路径
     * @param string $attName 附件名称
     * @param string $attFileType 附件文件类型
     * @param bool   $attEmbedded 附件是否为嵌入
     * 	@return 成功 0，失败 错误代码
     */
    function addAttachment($sAttFilePath, $sAttName, $sAttType='', $sAttEmbedded = false)
    {
        if (is_null($sAttFilePath)) {
            return;
        }

        $embedded = false;
        if ($sAttEmbedded) {
            $this->_mail_embedded_count++;
            $embedded = sprintf('part%s.%s', $this->_mail_embedded_count, $this->_mail_messageId);
        }

        $this->aAttachments[$this->_mail_attachments_index] = array(
            'attFilePath' => $sAttFilePath,
            'attName' => $sAttName,
            'attType' => $sAttType,
            'attEmbedded' => $embedded
        );
        $this->_mail_attachments_index++;
    }

    /**
     * 获取附件subpart信息
     * @param string $attFile 附件文件绝对路径
     * @param string $attName 附件名称
     * @param string $attFileType 附件文件类型
     * @param int    $attEmbedded 附件嵌入ID
     * 	@return 成功 0，失败 错误代码
     */
    function _getAttachment($attFile, $attName, $attFileType = "", $attEmbedded)
    {
        
        $content = file_get_contents($attFile);
        if ($content !== false) {
            list($attName, $charset) = $this->convEnc($attName);
            $attFileType = empty($attFileType) ? $this->_getMimeType($attName) : $attFileType;
            if ($attFileType == 'message/rfc822') {
                $this->_mail_subpart_attachments[] = array(
                    'content' => $content,
                    'name' => '=?' . $charset . '?B?' . base64_encode($attName) . '?=',
                    'type' => $attFileType,
                    'embedded' => false
                );
            } else {
                $this->_mail_subpart_attachments[] = array(
                    'content' => chunk_split(base64_encode($content), MIME_LINE_LENGTH_LIMIT, CRLF),
                    'name' => '=?' . $charset . '?B?' . base64_encode($attName) . '?=',
                    'type' => $attFileType,
                    'embedded' => $attEmbedded
                );
            }
            return true;
        } else {
            return false;
        }
    }

    /**
     * 	将文本格式正文按照RFC规范编码并拆分成行
     * 	@param	string
     */
    function _getTextMailBody()
    {
        if (isset($this->_mail_textBody) && !is_null($this->_mail_textBody))
            return chunk_split(
                    base64_encode($this->_mail_textBody), MIME_LINE_LENGTH_LIMIT, CRLF);
        else
            return '';
    }

    /**
     * 将嵌入附件的标记替换为实际的Content-ID
     *
     * @param string $body
     * @return string
     */
    function _replaceEmbedded($body)
    {
        foreach ($this->aAttachments as $att) {
            if (!$att['attEmbedded']) {
                continue;
            }

            $search = '__CID__' . md5($att['attFilePath']);
            $repl = 'cid:' . $att['attEmbedded'];
            $body = str_replace($search, $repl, $body);
        }
        return $body;
    }

    /**
     * 	将html格式正文按照RFC规范编码并拆分成行
     * 	@param	string
     */
    function _getHtmlMailBody()
    {
        if (isset($this->_mail_htmlBody) && !is_null($this->_mail_htmlBody)) {
            if ($this->_mail_embedded_count > 0) {
                $this->_mail_htmlBody = $this->_replaceEmbedded($this->_mail_htmlBody);
            }
            return chunk_split(
                    base64_encode($this->_mail_htmlBody), MIME_LINE_LENGTH_LIMIT, CRLF);
        } else {
            return '';
        }
    }

    /**
     * private
     * 	获取附件类型
     * @param string $attName 附件名称
     */
    function _getMimeType($attName)
    {
        $ext_array = explode(".", $attName);
        if (($last = count($ext_array) - 1) != 0) {
            $ext = strtolower($ext_array[$last]);
            if (isset($this->mime_types[$ext]))
                return $this->mime_types[$ext];
        }
        return "application/octet-stream";
    }

    /**
     * 按照RFC规范将邮件地址列表拆分成行
     * 	@param string $inputAddr 邮件地址列表
     * @return string 规范后的邮件地址列表
     */
    function _splitAddrList($inputAddr)
    {
        if (is_null($inputAddr) || MIME_LINE_LENGTH_LIMIT > strlen($inputAddr))
            return $inputAddr;
        else {
            $a_splitAddr = explode(",", $inputAddr);
            $curLen = 0;
            $outputAddr = '';
            foreach ($a_splitAddr as $key => $address) {
                $curLen += strlen($address);

                if (MIME_LINE_LENGTH_LIMIT < $curLen) {
                    $outputAddr .= CRLF . ' ' . $address . ",";
                    $curLen = strlen($address);
                } else {
                    $outputAddr .= $address . ",";
                }
            }
            return $outputAddr;
        }
    }

    /**
     * encode addList for MIME Header
     * @param string $addr_str 邮件地址列表
     *
     */
    function _encodeAddr($addr_str, $charset = 'GBK')
    {
        $addr_ret = '';

        $addr_str = mb_ereg_replace(mb_convert_encoding('，', $charset, 'UTF-8'), ',', $addr_str, $charset);
        $addrs = $this->_splitAddressStr($addr_str);
        foreach ($addrs as $key => $addr) {
            $addr = trim($addr);
            if ($key != 0)
                $addr_ret .= ', ';

            if (preg_match('/(.*)<(.*)>$/', $addr, $addr_split)) {

                $addr_name = trim($addr_split[1]);
                $addr_name = trim($addr_name, '"');
                $addr_mail = trim($addr_split[2]);
                mb_internal_encoding($charset);

                if (!self::isBig($addr_name)) {
                    $addr_ret .= '"' . $addr_name . '" <' . $addr_mail . '>';
                } else {
                    $addr_ret .= '=?' . $charset . '?B?' . base64_encode($addr_name) . '?= <' . $addr_mail . '>';
                }
            }
            else
                $addr_ret .= $addr;
        }
        return $addr_ret;
    }

    function _splitAddressStr($s)
    {
        $ls = array();
        $inQuote = false;
        $item = '';
        for ($i = 0, $n = strlen($s); $i < $n; ++$i) {
            $ch = $s[$i];
            if ($ch == '"') {
                if (!$inQuote) {
                    $inQuote = true;
                } else {
                    $inQuote = false;
                }
            } elseif ($ch == ',' || $ch == ';') {
                if (!$inQuote) {
                    if (isset($item[0])) {
                        array_push($ls, $item);
                        $item = '';
                    }
                } else {
                    $item .= $ch;
                }
            } else {
                $item .= $ch;
            }
        }

        if (isset($item[0])) {
            array_push($ls, $item);
        }

        return $ls;
    }

    /**
     * 将html格式转换为text
     * @param string $html
     * 	@return string 转换后text字符串
     */
    function htmlToText($html)
    {
        if (!strlen($html))
            return '';

        $search = array("'<br[^>]*?>'si");
        $replace = array("
");
        $txt = preg_replace($search, $replace, $html);

        $txt = strip_tags($txt);
        return htmlspecialchars_decode($txt);
    }

    /**
     * 检查是否是大字符集
     *
     * @param string type $string
     * @return boolean
     */
    function isBig($string)
    {
        for ($i = 0; $i < strlen($string); $i++) {
            if (ord($string[$i]) > 127) {
                return true;
            }
        }
        return false;
    }

}
$html='<h1>hello</h1>';
$text=strip_tags($html);

$mime=new MimeMail();
//增加一个邮件头
$mime->setUserHeader('044D8EB6F6EF3F6FAE1A32D8B0930F609000000000000002', 'sina-mid');
$mime->setSender("shihan2@sopans.com");
$mime->setFrom("shihan2@sopans.com");
$mime->setTo("shihan2@sopans.com");
$mime->setSubject("我来测试");
$mime->setBodyType('html');

$mime->addHtmlBody($html);
$mime->addTextBody($text);
$mime->addAttachment("D:/phpServer/WWW/test/1.log","1.log","");

$mime->buildBody();
$mail=$mime->getSendMailText();

echo $mail;
//file_put_contents("2.eml",$mail);