郵件協(xié)議中的三種情況,對應下面的三種類型

multipart/mixed可以包含附件。
multipart/related可以包含內嵌資源。
multipart/alternative 純文本與超文本共存

1.純文本的,只需要一塊content-type塊,不需要multipart塊

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: base64aGVsbG8=

2.內容是html的要加兩塊content-type塊內容,一塊是html一塊是純文本,并且要增加一塊multipart類型塊

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: inlineaGVsbG8=--=-sinamail_alt_849bb6f96e7dc06cb99a08e3f9c84179 Content-Type: text/html;charset=GBK Content-Transfer-Encoding: base64 Content-Disposition: inlinePGgxPmhlbGxvPC9oMT4=--=-sinamail_alt_849bb6f96e7dc06cb99a08e3f9c84179--

3.有附件的話,還會增加下面兩種multipart類型

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: inlineaGVsbG8=--=-sinamail_alt_f50efff67f5369967ea1a6c77020a1e7 Content-Type: text/html; charset=GBK Content-Transfer-Encoding: base64 Content-Disposition: inlinePGgxPmhlbGxvPC9oMT4=--=-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: base64MXwyNTAgUElQRUxJTklORw0K--=-sinamail_mix_fe895d50cd0d0669bb8a7eb8c697db19--

下面的代碼是php組合mime郵件協(xié)議的類庫

<?php /*** RFC 822: CR LF* character "CR":hex value 0D* character "LF":hex value 0A* @var string*/ define("CRLF", "\r\n");/*** 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;/*** 回復地址* @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 = '';/*** 附件信息數(shù)組（附件所在路徑、附件名稱、附件類型）*/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 = '';/*** 用戶自定義郵件頭** @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 $_mail_clientIp = '';/*** MimeMail 構造函數(shù)**/function MimeMail(){$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-\x7f\x{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;}/*** 取得用戶自定義郵件頭** @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);}/*** 設置用戶自定義郵件頭** @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;}}}/*** 設置郵件主題* @param string $subject 郵件主題**/function setSubject($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) . '?=';}}}/*** 設置真實發(fā)信地址** @param string $sender*/function setSender($sender){$this->_mail_sender = $sender;}/*** 設置發(fā)件人* @param string $from 發(fā)件人郵件地址* @param string $nickname 發(fā)件人昵稱**/function setFrom($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 . '>';}}}/*** 設置收件人郵件列表* @param string $to 收件人郵件地址**/function setTo($mail_to){if (!is_null($mail_to)) {list($mail_to, $charset) = $this->convEnc($mail_to);$this->_mail_to = $this->_encodeAddr($mail_to, $charset);}}/*** 設置抄送郵件列表* @param string $mail_cc 抄送郵件地址列表**/function setCc($mail_cc){if (!is_null($mail_cc)) {list($mail_cc, $charset) = $this->convEnc($mail_cc);$this->_mail_cc = $this->_encodeAddr($mail_cc, $charset);}}/*** 設置密送郵件列表* @param string $mail_bcc 密送郵件地址列表**/function setBcc($mail_bcc){if (!is_null($mail_bcc)) {list($mail_bcc, $charset) = $this->convEnc($mail_bcc);$this->_mail_bcc = $this->_encodeAddr($mail_bcc, $charset);}}/*** 設置郵件正文類型* @param string $text_type 郵件正文類型**/function setBodyType($text_type){if ($text_type == 'html')$this->_mail_BodyType = $text_type;else$this->_mail_BodyType = "plain";}/*** 設置郵件優(yōu)先級別* @param string $priority 郵件優(yōu)先級別**/function setPriority($priority = 3){$priority = !is_null($priority) ? $priority : 3;$this->_mail_priority = $priority;}/*** 設置郵件優(yōu)先級別* @param string $isNeedReply 是否需要讀信回執(zhí)* @param string $addr_notificationTo 回執(zhí)郵件地址*/function setNotificationTo($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;}}/*** 設置郵件回復信息* @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;}/** 生成郵件header* @param string $mailContentType 郵件content-type* @return string mailHeader*/function _buildHeader($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 .= $mailContentType;}/** 生成郵件體* @return bool 成功返回0，失敗返回錯誤代碼**/function buildBody(){/*$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\nContent-Transfer-Encoding: base64");$this->_mail_body = $this->_getTextMailBody();break;case 3: //text/plain && text/html$this->_buildHeader("Content-Type: multipart/alternative;\n\t boundary=\"$this->_mail_boundary_alt\"");$this->_mail_body = "--" . $this->_mail_boundary_alt . CRLF;$this->_mail_body .="Content-Type: text/plain;\n\tcharset=$this->_mail_text_charset" . CRLF;$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; \n\tcharset=$this->_mail_charset" . CRLF;$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;\n\t boundary=\"$this->_mail_boundary_mix\"");$this->_mail_body = "--" . $this->_mail_boundary_mix . CRLF;$this->_mail_body .="Content-Type: text/plain;\n\tcharset=$this->_mail_text_charset" . CRLF;$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;\n\t boundary=\"$this->_mail_boundary_mix\"");$this->_mail_body = "--" . $this->_mail_boundary_mix . CRLF;$this->_mail_body .= "Content-Type: multipart/alternative;\n\t boundary=\"$this->_mail_boundary_alt\"" . CRLF . CRLF;$this->_mail_body .= "--" . $this->_mail_boundary_alt . CRLF;$this->_mail_body .= "Content-Type: text/plain;\n\tcharset=$this->_mail_text_charset" . CRLF;$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\";\n\t boundary=\"$this->_mail_boundary_rel\"");$this->_mail_body = "--" . $this->_mail_boundary_rel . CRLF;$this->_mail_body .= "Content-Type: multipart/alternative;\n\t boundary=\"$this->_mail_boundary_alt\"" . CRLF . CRLF;$this->_mail_body .= "--" . $this->_mail_boundary_alt . CRLF;$this->_mail_body .= "Content-Type: text/plain;\n\tcharset=$this->_mail_text_charset" . CRLF;$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;\n\t 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;\n\t 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 $mailContentType 郵件content-type* @return string mailHeader*/function _parseElements(){if ($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 附件文件絕對路徑* @param string $attName 附件名稱* @param string $attFileType 附件文件類型* @param bool $attEmbedded 附件是否為嵌入* @return 成功 0，失敗 錯誤代碼*/function addAttachment($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++;}/*** 獲取附件subpart信息* @param string $attFile 附件文件絕對路徑* @param string $attName 附件名稱* @param string $attFileType 附件文件類型* @param int $attEmbedded 附件嵌入ID* @return 成功 0，失敗 錯誤代碼*/function _getAttachment($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' => $attEmbedded);}return true;} else {return false;}}/*** 將文本格式正文按照RFC規(guī)范編碼并拆分成行* @param string*/function _getTextMailBody(){if (isset($this->_mail_textBody) && !is_null($this->_mail_textBody))return chunk_split(base64_encode($this->_mail_textBody), MIME_LINE_LENGTH_LIMIT, CRLF);elsereturn '';}/*** 將嵌入附件的標記替換為實際的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 $body;}/*** 將html格式正文按照RFC規(guī)范編碼并拆分成行* @param string*/function _getHtmlMailBody(){if (isset($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* 獲取附件類型* @param string $attName 附件名稱*/function _getMimeType($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規(guī)范將郵件地址列表拆分成行* @param string $inputAddr 郵件地址列表* @return string 規(guī)范后的郵件地址列表*/function _splitAddrList($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 $addr_str 郵件地址列表**/function _encodeAddr($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;}/*** 將html格式轉換為text* @param string $html* @return string 轉換后text字符串*/function htmlToText($html){if (!strlen($html))return '';$search = array("'<br[^>]*?>'si");$replace = array("\n");$txt = preg_replace($search, $replace, $html);$txt = strip_tags($txt);return htmlspecialchars_decode($txt);}/*** 檢查是否是大字符集** @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(); //增加一個郵件頭 $mime->setUserHeader('044D8EB6F6EF3F6FAE1A32D8B0930F609000000000000002', 'sina-mid'); $mime->setSender("shihan2@sopans.com"); $mime->setFrom("shihan2@sopans.com"); $mime->setTo("shihan2@sopans.com"); $mime->setSubject("我來測試"); $mime->setBodyType('html');$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);

　　

　　

　　

轉載于:https://www.cnblogs.com/taoshihan/p/10718625.html

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