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這篇文章主要介紹了PHP實(shí)現(xiàn)支持SSL連接的SMTP郵件發(fā)送類,實(shí)例分析了php實(shí)現(xiàn)smtp郵件發(fā)送類的原理與技巧,以及支持SSL連接的方法,需要的朋友可以參考下

本文實(shí)例講述了PHP實(shí)現(xiàn)支持SSL連接的SMTP郵件發(fā)送類。分享給大家供大家參考。具體如下：

該實(shí)例代碼測(cè)試過(guò)了gmail和QQ郵箱的SMTP。具體代碼如下：

代碼如下:

<?php

/**

* 郵件發(fā)送類

* 支持發(fā)送純文本郵件和HTML格式的郵件，可以多收件人，多抄送，多秘密抄送，帶附件(單個(gè)或多個(gè)附件),支持到服務(wù)器的ssl連接

* 需要的php擴(kuò)展：sockets、Fileinfo和openssl。

* 編碼格式是UTF-8，傳輸編碼格式是base64

* @example

* $mail = new MySendMail();

* $mail->setServer("", "", "XXXXX"); //設(shè)置smtp服務(wù)器，普通連接方式

* $mail->setServer("smtp.gmail.com", "", "XXXXX", 465, true); //設(shè)置smtp服務(wù)器，到服務(wù)器的SSL連接

* $mail->setFrom("XXXXX"); //設(shè)置發(fā)件人

* $mail->setReceiver("XXXXX"); //設(shè)置收件人，多個(gè)收件人，調(diào)用多次

* $mail->setCc("XXXX"); //設(shè)置抄送，多個(gè)抄送，調(diào)用多次

* $mail->setBcc("XXXXX"); //設(shè)置秘密抄送，多個(gè)秘密抄送，調(diào)用多次

* $mail->addAttachment("XXXX"); //添加附件，多個(gè)附件，調(diào)用多次

* $mail->setMail("test", "<b>test</b>"); //設(shè)置郵件主題、內(nèi)容

* $mail->sendMail(); //發(fā)送

*/

class MySendMail {

/**

* @var string 郵件傳輸代理用戶名

* @access protected

*/

protected $_userName;

/**

* @var string 郵件傳輸代理密碼

* @access protected

*/

protected $_password;

/**

* @var string 郵件傳輸代理服務(wù)器地址

* @access protected

*/

protected $_sendServer;

/**

* @var int 郵件傳輸代理服務(wù)器端口

* @access protected

*/

protected $_port;

/**

* @var string 發(fā)件人

* @access protected

*/

protected $_from;

/**

* @var array 收件人

* @access protected

*/

protected $_to = array();

/**

* @var array 抄送

* @access protected

*/

protected $_cc = array();

/**

* @var array 秘密抄送

* @access protected

*/

protected $_bcc = array();

/**

* @var string 主題

* @access protected

*/

protected $_subject;

/**

* @var string 郵件正文

* @access protected

*/

protected $_body;

/**

* @var array 附件

* @access protected

*/

protected $_attachment = array();

/**

* @var reource socket資源

* @access protected

*/

protected $_socket;

/**

* @var reource 是否是安全連接

* @access protected

*/

protected $_isSecurity;

/**

* @var string 錯(cuò)誤信息

* @access protected

*/

protected $_errorMessage;

/**

* 設(shè)置郵件傳輸代理，如果是可以匿名發(fā)送有郵件的服務(wù)器，只需傳遞代理服務(wù)器地址就行

* @access public

* @param string $server 代理服務(wù)器的ip或者域名

* @param string $username 認(rèn)證賬號(hào)

* @param string $password 認(rèn)證密碼

* @param int $port 代理服務(wù)器的端口，smtp默認(rèn)25號(hào)端口

* @param boolean $isSecurity 到服務(wù)器的連接是否為安全連接，默認(rèn)false

* @return boolean

*/

public function setServer($server, $username="", $password="", $port=25, $isSecurity=false) {

$this->_sendServer = $server;

$this->_port = $port;

$this->_isSecurity = $isSecurity;

$this->_userName = empty($username) ? "" : base64_encode($username);

$this->_password = empty($password) ? "" : base64_encode($password);

return true;

}

/**

* 設(shè)置發(fā)件人

* @access public

* @param string $from 發(fā)件人地址

* @return boolean

*/

public function setFrom($from) {

$this->_from = $from;

return true;

}

/**

* 設(shè)置收件人，多個(gè)收件人，調(diào)用多次.

* @access public

* @param string $to 收件人地址

* @return boolean

*/

public function setReceiver($to) {

$this->_to[] = $to;

return true;

}

/**

* 設(shè)置抄送，多個(gè)抄送，調(diào)用多次.

* @access public

* @param string $cc 抄送地址

* @return boolean

*/

public function setCc($cc) {

$this->_cc[] = $cc;

return true;

}

/**

* 設(shè)置秘密抄送，多個(gè)秘密抄送，調(diào)用多次

* @access public

* @param string $bcc 秘密抄送地址

* @return boolean

*/

public function setBcc($bcc) {

$this->_bcc[] = $bcc;

return true;

}

/**

* 設(shè)置郵件附件，多個(gè)附件，調(diào)用多次

* @access public

* @param string $file 文件地址

* @return boolean

*/

public function addAttachment($file) {

if(!file_exists($file)) {

$this->_errorMessage = "file " . $file . " does not exist.";

return false;

}

$this->_attachment[] = $file;

return true;

}

/**

* 設(shè)置郵件信息

* @access public

* @param string $body 郵件主題

* @param string $subject 郵件主體內(nèi)容，可以是純文本，也可是是HTML文本

* @return boolean

*/

public function setMail($subject, $body) {

$this->_subject = base64_encode($subject);

$this->_body = base64_encode($body);

return true;

}

/**

* 發(fā)送郵件

* @access public

* @return boolean

*/

public function sendMail() {

$command = $this->getCommand();

$this->_isSecurity ? $this->socketSecurity() : $this->socket();

foreach ($command as $value) {

$result = $this->_isSecurity ? $this->sendCommandSecurity($value[0], $value[1]) : $this->sendCommand($value[0], $value[1]);

if($result) {

continue;

}

else{

return false;

}

}

//其實(shí)這里也沒(méi)必要關(guān)閉，smtp命令：QUIT發(fā)出之后，服務(wù)器就關(guān)閉了連接，本地的socket資源會(huì)自動(dòng)釋放

$this->_isSecurity ? $this->closeSecutity() : $this->close();

return true;

}

/**

* 返回錯(cuò)誤信息

* @return string

*/

public function error(){

if(!isset($this->_errorMessage)) {

$this->_errorMessage = "";

}

return $this->_errorMessage;

}

/**

* 返回mail命令

* @access protected

* @return array

*/

protected function getCommand() {

$separator = "----=_Part_" . md5($this->_from . time()) . uniqid(); //分隔符

$command = array(

array("HELO sendmail\r\n", 250)

);

if(!empty($this->_userName)){

$command[] = array("AUTH LOGIN\r\n", 334);

$command[] = array($this->_userName . "\r\n", 334);

$command[] = array($this->_password . "\r\n", 235);

}

//設(shè)置發(fā)件人

$command[] = array("MAIL FROM: <" . $this->_from . ">\r\n", 250);

$header = "FROM: <" . $this->_from . ">\r\n";

//設(shè)置收件人

if(!empty($this->_to)) {

$count = count($this->_to);

if($count == 1){

$command[] = array("RCPT TO: <" . $this->_to[0] . ">\r\n", 250);

$header .= "TO: <" . $this->_to[0] .">\r\n";

}

else{

for($i=0; $i<$count; $i++){

$command[] = array("RCPT TO: <" . $this->_to[$i] . ">\r\n", 250);

if($i == 0){

$header .= "TO: <" . $this->_to[$i] .">";

}

elseif($i + 1 == $count){

$header .= ",<" . $this->_to[$i] .">\r\n";

}

else{

$header .= ",<" . $this->_to[$i] .">";

}

}

}

}

//設(shè)置抄送

if(!empty($this->_cc)) {

$count = count($this->_cc);

if($count == 1){

$command[] = array("RCPT TO: <" . $this->_cc[0] . ">\r\n", 250);

$header .= "CC: <" . $this->_cc[0] .">\r\n";

}

else{

for($i=0; $i<$count; $i++){

$command[] = array("RCPT TO: <" . $this->_cc[$i] . ">\r\n", 250);

if($i == 0){

$header .= "CC: <" . $this->_cc[$i] .">";

}

elseif($i + 1 == $count){

$header .= ",<" . $this->_cc[$i] .">\r\n";

}

else{

$header .= ",<" . $this->_cc[$i] .">";

}

}

}

}

//設(shè)置秘密抄送

if(!empty($this->_bcc)) {

$count = count($this->_bcc);

if($count == 1) {

$command[] = array("RCPT TO: <" . $this->_bcc[0] . ">\r\n", 250);

$header .= "BCC: <" . $this->_bcc[0] .">\r\n";

}

else{

for($i=0; $i<$count; $i++){

$command[] = array("RCPT TO: <" . $this->_bcc[$i] . ">\r\n", 250);

if($i == 0){

$header .= "BCC: <" . $this->_bcc[$i] .">";

}

elseif($i + 1 == $count){

$header .= ",<" . $this->_bcc[$i] .">\r\n";

}

else{

$header .= ",<" . $this->_bcc[$i] .">";

}

}

}

}

//主題

$header .= "Subject: =?UTF-8?B?" . $this->_subject ."?=\r\n";

if(isset($this->_attachment)) {

//含有附件的郵件頭需要聲明成這個(gè)

$header .= "Content-Type: multipart/mixed;\r\n";

}

elseif(false){

//郵件體含有圖片資源的,且包含的圖片在郵件內(nèi)部時(shí)聲明成這個(gè)，如果是引用的遠(yuǎn)程圖片，就不需要了

$header .= "Content-Type: multipart/related;\r\n";

}

else{

//html或者純文本的郵件聲明成這個(gè)

$header .= "Content-Type: multipart/alternative;\r\n";

}

//郵件頭分隔符

$header .= "\t" . 'boundary="' . $separator . '"';

$header .= "\r\nMIME-Version: 1.0\r\n";

//這里開(kāi)始是郵件的body部分，body部分分成幾段發(fā)送

$header .= "\r\n--" . $separator . "\r\n";

$header .= "Content-Type:text/html; charset=utf-8\r\n";

$header .= "Content-Transfer-Encoding: base64\r\n\r\n";

$header .= $this->_body . "\r\n";

$header .= "--" . $separator . "\r\n";

//加入附件

if(!empty($this->_attachment)){

$count = count($this->_attachment);

for($i=0; $i<$count; $i++){

$header .= "\r\n--" . $separator . "\r\n";

$header .= "Content-Type: " . $this->getMIMEType($this->_attachment[$i]) . '; name="=?UTF-8?B?' . base64_encode( basename($this->_attachment[$i]) ) . '?="' . "\r\n";

$header .= "Content-Transfer-Encoding: base64\r\n";

$header .= 'Content-Disposition: attachment; filename="=?UTF-8?B?' . base64_encode( basename($this->_attachment[$i]) ) . '?="' . "\r\n";

$header .= "\r\n";

$header .= $this->readFile($this->_attachment[$i]);

$header .= "\r\n--" . $separator . "\r\n";

}

}

//結(jié)束郵件數(shù)據(jù)發(fā)送

$header .= "\r\n.\r\n";

$command[] = array("DATA\r\n", 354);

$command[] = array($header, 250);

$command[] = array("QUIT\r\n", 221);

return $command;

}

/**

* 發(fā)送命令

* @access protected

* @param string $command 發(fā)送到服務(wù)器的smtp命令

* @param int $code 期望服務(wù)器返回的響應(yīng)嗎

* @return boolean

*/

protected function sendCommand($command, $code) {

echo 'Send command:' . $command . ',expected code:' . $code . '<br />';

//發(fā)送命令給服務(wù)器

try{

if(socket_write($this->_socket, $command, strlen($command))){

//當(dāng)郵件內(nèi)容分多次發(fā)送時(shí)，沒(méi)有$code，服務(wù)器沒(méi)有返回

if(empty($code)) {

return true;

}

//讀取服務(wù)器返回

$data = trim(socket_read($this->_socket, 1024));

echo 'response:' . $data . '<br /><br />';

if($data) {

$pattern = "/^".$code."+?/";

if(preg_match($pattern, $data)) {

return true;

}

else{

$this->_errorMessage = "Error:" . $data . "|**| command:";

return false;

}

}

else{

$this->_errorMessage = "Error:" . socket_strerror(socket_last_error());

return false;

}

}

else{

$this->_errorMessage = "Error:" . socket_strerror(socket_last_error());

return false;

}

}catch(Exception $e) {

$this->_errorMessage = "Error:" . $e->getMessage();

}

}

/**

* 安全連接發(fā)送命令

* @access protected

* @param string $command 發(fā)送到服務(wù)器的smtp命令

* @param int $code 期望服務(wù)器返回的響應(yīng)嗎

* @return boolean

*/

protected function sendCommandSecurity($command, $code) {

echo 'Send command:' . $command . ',expected code:' . $code . '<br />';

try {

if(fwrite($this->_socket, $command)){

//當(dāng)郵件內(nèi)容分多次發(fā)送時(shí)，沒(méi)有$code，服務(wù)器沒(méi)有返回

if(empty($code)) {

return true;

}

//讀取服務(wù)器返回

$data = trim(fread($this->_socket, 1024));

echo 'response:' . $data . '<br /><br />';

if($data) {

$pattern = "/^".$code."+?/";

if(preg_match($pattern, $data)) {

return true;

}

else{

$this->_errorMessage = "Error:" . $data . "|**| command:";

return false;

}

}

else{

return false;

}

}

else{

$this->_errorMessage = "Error: " . $command . " send failed";

return false;

}

}catch(Exception $e) {

$this->_errorMessage = "Error:" . $e->getMessage();

}

}

/**

* 讀取附件文件內(nèi)容，返回base64編碼后的文件內(nèi)容

* @access protected

* @param string $file 文件

* @return mixed

*/

protected function readFile($file) {

if(file_exists($file)) {

$file_obj = file_get_contents($file);

return base64_encode($file_obj);

}

else {

$this->_errorMessage = "file " . $file . " dose not exist";

return false;

}

}

/**

* 獲取附件MIME類型

* @access protected

* @param string $file 文件

* @return mixed

*/

protected function getMIMEType($file) {

if(file_exists($file)) {

$mime = mime_content_type($file);

/*if(! preg_match("/gif|jpg|png|jpeg/", $mime)){

$mime = "application/octet-stream";

}*/

return $mime;

}

else {

return false;

}

}

/**

* 建立到服務(wù)器的網(wǎng)絡(luò)連接

* @access protected

* @return boolean

*/

protected function socket() {

//創(chuàng)建socket資源

$this->_socket = socket_create(AF_INET, SOCK_STREAM, getprotobyname('tcp'));

if(!$this->_socket) {

$this->_errorMessage = socket_strerror(socket_last_error());

return false;

}

socket_set_block($this->_socket);//設(shè)置阻塞模式

//連接服務(wù)器

if(!socket_connect($this->_socket, $this->_sendServer, $this->_port)) {

$this->_errorMessage = socket_strerror(socket_last_error());

return false;

}

$str = socket_read($this->_socket, 1024);

if(!preg_match("/220+?/", $str)){

$this->_errorMessage = $str;

return false;

}

return true;

}

/**

* 建立到服務(wù)器的SSL網(wǎng)絡(luò)連接

* @access protected

* @return boolean

*/

protected function socketSecurity() {

$remoteAddr = "tcp://" . $this->_sendServer . ":" . $this->_port;

$this->_socket = stream_socket_client($remoteAddr, $errno, $errstr, 30);

if(!$this->_socket){

$this->_errorMessage = $errstr;

return false;

}

//設(shè)置加密連接，默認(rèn)是ssl，如果需要tls連接，可以查看php手冊(cè)stream_socket_enable_crypto函數(shù)的解釋

stream_socket_enable_crypto($this->_socket, true, STREAM_CRYPTO_METHOD_SSLv23_CLIENT);

stream_set_blocking($this->_socket, 1); //設(shè)置阻塞模式

$str = fread($this->_socket, 1024);

if(!preg_match("/220+?/", $str)){

$this->_errorMessage = $str;

return false;

}

return true;

}

/**

* 關(guān)閉socket

* @access protected

* @return boolean

*/

protected function close() {

if(isset($this->_socket) && is_object($this->_socket)) {

$this->_socket->close();

return true;

}

$this->_errorMessage = "No resource can to be close";

return false;

}

/**

* 關(guān)閉安全socket

* @access protected

* @return boolean

*/

protected function closeSecutity() {

if(isset($this->_socket) && is_object($this->_socket)) {

stream_socket_shutdown($this->_socket, STREAM_SHUT_WR);

return true;

}

$this->_errorMessage = "No resource can to be close";

return false;

}

}

希望本文所述對(duì)大家的php程序設(shè)計(jì)有所幫助。

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