PHP邮件发送类支持发送纯文本邮件和HTML格式的邮件，可以多收件人，多抄送，多秘密抄送，带附件的邮件

╰半夏微凉° 2022-05-14 00:22 158阅读 0赞

<?php
 
 /**
 * 邮件发送类
 * 支持发送纯文本邮件和HTML格式的邮件，可以多收件人，多抄送，多秘密抄送，带附件的邮件
 * 需要的php扩展，sockets和Fileinfo。
 * @example
 * $mail = new MySendMail();
 * $mail->setServer("XXXXX", "XXXXX@XXXXX", "XXXXX"); 设置smtp服务器
 * $mail->setFrom("XXXXX"); 设置发件人
 * $mail->setReceiver("XXXXX"); 设置收件人，多个收件人，调用多次
 * $mail->setCc("XXXX"); 设置抄送，多个抄送，调用多次
 * $mail->setBcc("XXXXX"); 设置秘密抄送，多个秘密抄送，调用多次
 * $mail->setMailInfo("test", "test"); 设置邮件主题、内容
 * $mail->sendMail(); 发送
 */
 class MySendMail
 {
 /**
 * @var string 邮件传输代理用户名
 * @access private
 */
 private $_userName;
 
 /**
 * @var string 邮件传输代理密码
 * @access private
 */
 private $_password;
 
 /**
 * @var string 邮件传输代理服务器地址
 * @access protected
 */
 protected $_sendServer;
 
 /**
 * @var int 邮件传输代理服务器端口
 * @access protected
 */
 protected $_port = 25;
 
 /**
 * @var string 发件人
 * @access protected
 */
 protected $_from;
 
 /**
 * @var string 收件人
 * @access protected
 */
 protected $_to;
 
 /**
 * @var string 抄送
 * @access protected
 */
 protected $_cc;
 
 /**
 * @var string 秘密抄送
 * @access protected
 */
 protected $_bcc;
 
 /**
 * @var string 主题
 * @access protected
 */
 protected $_subject;
 
 /**
 * @var string 邮件正文
 * @access protected
 */
 protected $_body;
 
 /**
 * @var string 附件
 * @access protected
 */
 protected $_attachment;
 
 /**
 * @var reource socket资源
 * @access protected
 */
 protected $_socket;
 
 /**
 * @var string 错误信息
 * @access protected
 */
 protected $_errorMessage;
 
 /**
 * 设置邮件传输代理，如果是可以匿名发送有邮件的服务器，只需传递代理服务器地址就行
 * @access public
 * @param string $server 代理服务器的ip或者域名
 * @param string $username 认证账号
 * @param string $password 认证密码
 * @param int $port 代理服务器的端口，smtp默认25号端口
 * @return boolean
 */
 public function setServer($server, $username = "", $password = "", $port = 25)
 {
 $this->_sendServer = $server;
 $this->_port = $port;
 if (!empty($username)) {
 $this->_userName = base64_encode($username);
 }
 if (!empty($password)) {
 $this->_password = base64_encode($password);
 }
 return true;
 }
 
 /**
 * 设置发件人
 * @access public
 * @param string $from 发件人地址
 * @return boolean
 */
 public function setFrom($from)
 {
 $this->_from = $from;
 return true;
 }
 
 /**
 * 设置收件人，多个收件人，连续调用多次.
 * @access public
 * @param string $to 收件人地址
 * @return boolean
 */
 public function setReceiver($to)
 {
 if (isset($this->_to)) {
 if (is_string($this->_to)) {
 $this->_to = array($this->_to);
 $this->_to[] = $to;
 return true;
 } elseif (is_array($this->_to)) {
 $this->_to[] = $to;
 return true;
 } else {
 return false;
 }
 } else {
 $this->_to = $to;
 return true;
 }
 }
 
 /**
 * 设置抄送，多个抄送，连续调用多次.
 * @access public
 * @param string $cc 抄送地址
 * @return boolean
 */
 public function setCc($cc)
 {
 if (isset($this->_cc)) {
 if (is_string($this->_cc)) {
 $this->_cc = array($this->_cc);
 $this->_cc[] = $cc;
 return true;
 } elseif (is_array($this->_cc)) {
 $this->_cc[] = $cc;
 return true;
 } else {
 return false;
 }
 } else {
 $this->_cc = $cc;
 return true;
 }
 }
 
 /**
 * 设置秘密抄送，多个秘密抄送，连续调用多次
 * @access public
 * @param string $bcc 秘密抄送地址
 * @return boolean
 */
 public function setBcc($bcc)
 {
 if (isset($this->_bcc)) {
 if (is_string($this->_bcc)) {
 $this->_bcc = array($this->_bcc);
 $this->_bcc[] = $bcc;
 return true;
 } elseif (is_array($this->_bcc)) {
 $this->_bcc[] = $bcc;
 return true;
 } else {
 return false;
 }
 } else {
 $this->_bcc = $bcc;
 return true;
 }
 }
 
 /**
 * 设置邮件信息
 * @access public
 * @param string $body 邮件主题
 * @param string $subject 邮件主体内容，可以是纯文本，也可是是HTML文本
 * @param string $attachment 附件，文件地址
 * @return boolean
 */
 public function setMailInfo($subject, $body, $attachment = "")
 {
 $this->_subject = $subject;
 $this->_body = base64_encode($body);
 if (!empty($attachment)) {
 $this->_attachment = $attachment;
 }
 return true;
 }
 
 /**
 * 发送邮件
 * @access public
 * @return boolean
 */
 public function sendMail()
 {
 $command = $this->getCommand();
 $this->socket();
 
 foreach ($command as $value) {
 if ($this->sendCommand($value[0], $value[1])) {
 continue;
 } else {
 return false;
 }
 }
 
 //其实这里也没必要关闭，smtp命令：QUIT发出之后，服务器就关闭了连接，本地的socket资源会自动释放
 $this->close();
 echo 'Mail OK!';
 return true;
 }
 
 /**
 * 返回错误信息
 * @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()
 {
 $command = array(
 array("HELO sendmail\r\n", 250)
 );
 if (!empty($this->_userName)) {
 $command[] = array("AUTH LOGIN\r\n", 334);
 $command[] = array($this->_userName . "\r\n", 334);
 $command[] = array($this->_password . "\r\n", 235);
 }
 $command[] = array("MAIL FROM:<" . $this->_from . ">\r\n", 250);
 
 $separator = "----=_Part_" . md5($this->_from . time()) . uniqid(); //分隔符
 //设置发件人
 $header = "FROM: test<" . $this->_from . ">\r\n";
 
 //设置收件人
 if (is_array($this->_to)) {
 $count = count($this->_to);
 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] . ">";
 }
 }
 } else {
 $command[] = array("RCPT TO: <" . $this->_to . ">\r\n", 250);
 $header .= "TO: <" . $this->_to . ">\r\n";
 }
 
 //设置抄送
 if (isset($this->_cc)) {
 if (is_array($this->_cc)) {
 $count = count($this->_cc);
 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] . ">";
 }
 }
 } else {
 $command[] = array("RCPT TO: <" . $this->_cc . ">\r\n", 250);
 $header .= "CC: <" . $this->_cc . ">\r\n";
 }
 }
 
 //设置秘密抄送
 if (isset($this->_bcc)) {
 if (is_array($this->_bcc)) {
 $count = count($this->_bcc);
 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] . ">";
 }
 }
 } else {
 $command[] = array("RCPT TO: <" . $this->_bcc . ">\r\n", 250);
 $header .= "BCC: <" . $this->_bcc . ">\r\n";
 }
 }
 
 $header .= "Subject: " . $this->_subject . "\r\n";
 if (isset($this->_attachment)) {
 //含有附件的邮件头需要声明成这个
 $header .= "Content-Type: multipart/mixed;\r\n";
 } elseif (false) {
 //邮件体含有图片资源的需要声明成这个
 $header .= "Content-Type: multipart/related;\r\n";
 } else {
 //html或者纯文本的邮件声明成这个
 $header .= "Content-Type: multipart/alternative;\r\n";
 }
 
 //邮件头分隔符
 $header .= "\t" . 'boundary="' . $separator . '"';
 $header .= "\r\nMIME-Version: 1.0\r\n";
 $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 (isset($this->_attachment)) {
 $header .= "\r\n--" . $separator . "\r\n";
 $header .= "Content-Type: " . $this->getMIMEType() . '; name="' . basename($this->_attachment) . '"' . "\r\n";
 $header .= "Content-Transfer-Encoding: base64\r\n";
 $header .= 'Content-Disposition: attachment; filename="' . basename($this->_attachment) . '"' . "\r\n";
 $header .= "\r\n";
 $header .= $this->readFile();
 $header .= "\r\n--" . $separator . "\r\n";
 }
 
 $header .= "\r\n.\r\n";
 
 $command[] = array("DATA\r\n", 354);
 $command[] = array($header, 250);
 $command[] = array("QUIT\r\n", 221);
 
 return $command;
 }
 
 /**
 * 发送命令
 * @access protected
 * @param string $command 发送到服务器的smtp命令
 * @param int $code 期望服务器返回的响应吗
 * @return boolean
 */
 protected function sendCommand($command, $code)
 {
 echo 'Send command:' . $command . ',expected code:' . $code . ' ';
 //发送命令给服务器
 try {
 if (socket_write($this->_socket, $command, strlen($command))) {
 
 //当邮件内容分多次发送时，没有$code，服务器没有返回
 if (empty($code)) {
 return true;
 }
 
 //读取服务器返回
 $data = trim(socket_read($this->_socket, 1024));
 echo 'response:' . $data . ' ';
 
 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();
 }
 }
 
 /**
 * 读取附件文件内容，返回base64编码后的文件内容
 * @access protected
 * @return mixed
 */
 protected function readFile()
 {
 if (isset($this->_attachment) && file_exists($this->_attachment)) {
 $file = file_get_contents($this->_attachment);
 return base64_encode($file);
 } else {
 return false;
 }
 }
 
 /**
 * 获取附件MIME类型
 * @access protected
 * @return mixed
 */
 protected function getMIMEType()
 {
 if (isset($this->_attachment) && file_exists($this->_attachment)) {
 $mime = mime_content_type($this->_attachment);
 if (!preg_match("/gif|jpg|png|jpeg/", $mime)) {
 $mime = "application/octet-stream";
 }
 return $mime;
 } else {
 return false;
 }
 }
 
 /**
 * 建立到服务器的网络连接
 * @access private
 * @return boolean
 */
 private function socket()
 {
 if (!function_exists("socket_create")) {
 $this->_errorMessage = "Extension sockets must be enabled";
 return false;
 }
 //创建socket资源
 $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);//设置阻塞模式
 
 //连接服务器
 if (!socket_connect($this->_socket, $this->_sendServer, $this->_port)) {
 $this->_errorMessage = socket_strerror(socket_last_error());
 return false;
 }
 socket_read($this->_socket, 1024);
 
 return true;
 }
 
 /**
 * 关闭socket
 * @access private
 * @return boolean
 */
 private 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;
 }
 }
 
 /**************************** Test ***********************************/
 $mail = new MySendMail();
 $mail->setServer("XXXXX", "XXXXX@XXXXX", "XXXXX");
 $mail->setFrom("XXXXX@XXXXX");
 $mail->setReceiver("XXXXX@XXXXX");
 //$mail->setReceiver("XXXXX@XXXXX");
 $mail->setCc("XXXXX@XXXXX");
 $mail->setCc("XXXXX@XXXXX");
 $mail->setBcc("XXXXX@XXXXX");
 $mail->setBcc("XXXXX@XXXXX");
 $mail->setBcc("XXXXX@XXXXX");
 $mail->setMailInfo("test", "test", "sms.zip");
 $mail->sendMail();