php实现发送邮件，ssl版，QQ邮箱可用，有些同学的实现不了是因为端口用的默认的25，阿里云服务器屏蔽了25端口，现在我们用465端口，亲测可用，已经解决各种问题

现在我们先贴上邮箱发送的类代码

<?php/*** 一个简单的PHP SMTP 发送邮件类*/class Lib_Smtp {/*** @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 private*/private $_sendServer;/*** @var int 邮件传输代理服务器端口* @access private*/private $_port;/*** @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 reource 是否是安全连接* @access protected*/protected $_isSecurity;/*** @var string 错误信息* @access protected*/protected $_errorMessage;protected $_debug = false;/*输出调试信息*/private function debug($msg){if($this->_debug){echo $msg ,'<br>',"\n";}}public function setDebug($val=true){$this->_debug=$val;}/*** 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* @param boolean $isSecurity 到服务器的连接是否为安全连接，默认false* @return boolean*/public function setServer($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;}/*** 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，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，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，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;}}/*** 设置邮件附件，多个附件，调用多次* @access public* @param string $file 文件地址* @return boolean*/public function addAttachment($file) {if(!file_exists($file)) {$this->_errorMessage = "file " . $file . " does not exist.";return false;}if(isset($this->_attachment)) {if(is_string($this->_attachment)) {$this->_attachment = array($this->_attachment);$this->_attachment[] = $file;return true;}elseif(is_array($this->_attachment)) {$this->_attachment[] = $file;return true;}else {return false;}}else {$this->_attachment = $file;return true;}}/*** 设置邮件信息* @access public* @param string $body 邮件主题* @param string $subject 邮件主体内容，可以是纯文本，也可是是HTML文本* @return boolean*/public function setMail($subject, $body) {$this->_subject = $subject;$this->_body = base64_encode($body);return true;}/*** 发送邮件* @access public* @return boolean*/public function send() {$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->_isSecurity ? $this->closeSecutity() : $this->close();return true;}/*** 返回错误信息* @return string*/public function error(){if(!isset($this->_errorMessage)) {$this->_errorMessage = "";}return $this->_errorMessage;}/*** 返回mail命令* @access protected* @return array*/protected function getCommand() {$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);}//设置发件人$command[] = array("MAIL FROM: <" . $this->_from . ">\r\n", 250);$header = "FROM: <" . $this->_from . ">\r\n";//设置收件人if(is_array($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: <" . $this->_bcc . ">\r\n";}}//主题$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) && !empty($this->_attachment)){if(is_array($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[$i]) . '; name="' . basename($this->_attachment[$i]) . '"' . "\r\n";$header .= "Content-Transfer-Encoding: base64\r\n";$header .= 'Content-Disposition: attachment; filename="' . basename($this->_attachment[$i]) . '"' . "\r\n";$header .= "\r\n";$header .= $this->readFile($this->_attachment[$i]);$header .= "\r\n--" . $separator . "\r\n";}}else{$header .= "\r\n--" . $separator . "\r\n";$header .= "Content-Type: " . $this->getMIMEType($this->_attachment) . '; 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 .= $this->readFile($this->_attachment);$header .= "\r\n--" . $separator . "\r\n";}}//结束邮件数据发送$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) {//debug('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));//debug( '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();}}/*** 发送命令* @access protected* @param string $command 发送到服务器的smtp命令* @param int $code 期望服务器返回的响应吗* @return boolean*/protected function sendCommandSecurity($command, $code) {//debug('Send command:' . $command . ',expected code:' . $code );try {if(fwrite($this->_socket, $command)){//当邮件内容分多次发送时，没有$code，服务器没有返回if(empty($code)) {return true;}//读取服务器返回$data = trim(fread($this->_socket, 1024));//debug( 'response:' . $data );if($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();}}/*** 读取附件文件内容，返回base64编码后的文件内容* @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;}}/*** 获取附件MIME类型* @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 $mime;}else {return false;}}/*** 建立到服务器的网络连接* @access private* @return boolean*/private function socket() {//创建socket资源$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;}$str = socket_read($this->_socket, 1024);if(!strpos($str, "220")){$this->_errorMessage = $str;return false;}return true;}/*** 建立到服务器的SSL网络连接* @access private* @return boolean*/private function socketSecurity() {$remoteAddr = "tcp://" . $this->_sendServer . ":" . $this->_port;$this->_socket = stream_socket_client($remoteAddr, $errno, $errstr, 30);if(!$this->_socket){$this->_errorMessage = $errstr;return false;}//设置加密连接，默认是ssl，如果需要tls连接，可以查看php手册stream_socket_enable_crypto函数的解释stream_socket_enable_crypto($this->_socket, true, STREAM_CRYPTO_METHOD_SSLv23_CLIENT);stream_set_blocking($this->_socket, 1); //设置阻塞模式$str = fread($this->_socket, 1024);if(!strpos($str, "220")){$this->_errorMessage = $str;return false;}return true;}/*** 关闭socket* @access private* @return boolean*/private function close() {if(isset($this->_socket) && is_object($this->_socket)) {$this->_socket->close();return true;}$this->_errorMessage = "No resource can to be close";return false;}/*** 关闭安全socket* @access private* @return boolean*/private function closeSecutity() {if(isset($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;}}

下面贴出咱的引用发送邮箱类代码

public function channelMail(){$mail = new Lib_Smtp();$mail->setServer("", "123456@", "mima",465,true); //参数1（qq邮箱使用，qq企业邮箱使用smtp.），参数2（邮箱登陆账号），参数3（邮箱登陆密码，也有可能是独立密码，就是开启pop3/smtp时的授权码），参数4（默认25，腾云服务器屏蔽25端口，所以用的465），参数5（是否开启ssl，用465就得开启）//$mail->setServer("XXXXX", "joffe@XXXXX", "XXXXX", 465, true);$mail->setFrom("123456@"); //发送者邮箱$mail->setReceiver("123456789@"); //接收者邮箱$mail->addAttachment(""); //Attachment 附件，不用可注释$mail->setMail("测试一下", "<b>测试</b>"); //标题和内容$mail->send();//可以var_dump一下，发送成功会返回true，失败false}

小结：

使用QQ邮箱的话，需要开启POP3和SMTP服务。开启方式如下

QQ邮箱 > 设置 > 账户>开启服务：POP3和SMTP服务

需要 PHP 的 sockets 扩展支持，而登录 QQ 邮箱 SMTP 服务器则必须通过 SSL 加密，故 PHP 还得包含 openssl 的支持。