本文实例讲述了php基于socket实现SMTP发送邮件的方法。分享给大家供大家参考。具体分析如下：
php采用socket通过SMTP发送邮件。用的是php的php-sockets扩展，可以发送纯文本和html格式的邮件。代码如下：复制代码 代码如下:<?php/*** 邮件发送类* 支持发送纯文本邮件和HTML格式的邮件* @example* $config = array(* "from" => "*****",* "to" => "***",* "subject" => "test",* "body" => "<b>test</b>",* "username" => "***",* "password" => "****",* "isHTML" => true* );** $mail = new MySendMail();** $mail->setServer("smtp.126.com");** $mail->setMailInfo($config);* if(!$mail->sendMail()) {* echo $mail->error();* return 1;* }*/class MySendMail { /** * @var 邮件传输代理用户名 * @access private */ private $_userName; /** * @var 邮件传输代理密码 * @access private */ private $_password; /** * @var 邮件传输代理服务器地址 * @access protected */ protected $_sendServer; /** * @var 邮件传输代理服务器端口 * @access protected */ protected $_port=25; /** * @var 发件人 * @access protected */ protected $_from; /** * @var 收件人 * @access protected */ protected $_to; /** * @var 主题 * @access protected */ protected $_subject; /** * @var 邮件正文 * @access protected */ protected $_body; /** * @var 是否是HTML格式的邮件 * @access protected */ protected $_isHTML=false; /** * @var socket资源 * @access protected */ protected $_socket; /** * @var 错误信息 * @access protected */ protected $_errorMessage; public function __construct($from="", $to="", $subject="", $body="", $server="", $username="", $password="",$isHTML="", $port="") { if(!empty($from)){ $this->_from = $from; } if(!empty($to)){ $this->_to = $to; } if(!empty($subject)){ $this->_subject = $subject; } if(!empty($body)){ $this->_body = $body; } if(!empty($isHTML)){ $this->_isHTML = $isHTML; } if(!empty($server)){ $this->_sendServer = $server; } if(!empty($port)){ $this->_port = $port; } if(!empty($username)){ $this->_userName = $username; } if(!empty($password)){ $this->_password = $password; } } /** * 设置邮件传输代理 * @param string $server 代理服务器的ip或者域名 * @param int $port 代理服务器的端口，smtp默认25号端口 * @param int $localPort 本地端口 * @return boolean */ public function setServer($server, $port=25) { if(!isset($server) || empty($server) || !is_string($server)) { $this->_errorMessage = "first one is an invalid parameter"; return false; } if(!is_numeric($port)){ $this->_errorMessage = "first two is an invalid parameter"; return false; } $this->_sendServer = $server; $this->_port = $port; return true; } /** * 设置邮件 * @access public * @param array $config 邮件配置信息 * 包含邮件发送人、接收人、主题、内容、邮件传输代理的验证信息 * @return boolean */ public function setMailInfo($config) { if(!is_array($config) || count($config) < 6){ $this->_errorMessage = "parameters are required"; return false; } $this->_from = $config["from"]; $this->_to = $config["to"]; $this->_subject = $config["subject"]; $this->_body = $config["body"]; $this->_userName = $config["username"]; $this->_password = $config["password"]; if(isset($config["isHTML"])){ $this->_isHTML = $config["isHTML"]; } 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; } } $this->close(); //其实这里也没必要关闭，smtp命令：QUIT发出之后，服务器就关闭了连接，本地的socket资源会自动释放 echo "Mail OK!"; return true; } /** * 返回错误信息 * @return string */ public function error(){ if(!isset($this->_errorMessage)) { $this->_errorMessage = ""; } return $this->_errorMessage; } /** * 返回mail命令 * @access protected * @return array */ protected function getCommand() { if($this->_isHTML) { $mail = "MIME-Version:1.0"; $mail .= "Content-type:text/html;charset=utf-8"; $mail .= "FROM:test<" . $this->_from . ">"; $mail .= "TO:<" . $this->_to . ">"; $mail .= "Subject:" . $this->_subject .""; $mail .= $this->_body . "."; } else{ $mail = "FROM:test<" . $this->_from . ">"; $mail .= "TO:<" . $this->_to . ">"; $mail .= "Subject:" . $this->_subject .""; $mail .= $this->_body . "."; } $command = array( array("HELO sendmail", 250), array("AUTH LOGIN", 334), array(base64_encode($this->_userName) . "", 334), array(base64_encode($this->_password) . "", 235), array("MAIL FROM:<" . $this->_from . ">", 250), array("RCPT TO:<" . $this->_to . ">", 250), array("DATA", 354), array($mail, 250), array("QUIT", 221) ); return $command; } /** * @access protected * @param string $command 发送到服务器的smtp命令 * @param int $code 期望服务器返回的响应吗 * @param boolean */ protected function sendCommand($command, $code) { echo "Send command:" . $command . ",expected code:" . $code . "<br />"; //发送命令给服务器 try{ if(socket_write($this->_socket, $command, strlen($command))){ //读取服务器返回 $data = trim(socket_read($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(); } } /** * 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 php-sockets must be enabled"; return false; } //创建socket资源 $this->_socket = socket_create(AF_INET, SOCK_STREAM, getprotobyname("tcp")); if(!$this->_socket) { $this->_errorMessage = socket_strerror(socket_last_error()); return false; } //连接服务器 if(!socket_connect($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; } $this->_errorMessage = "no resource can to be close"; return false; }}/**************************** Test ***********************************/$config = array( "from" => "XXXXX", "to" => "XXXXX", "subject" => "test", "body" => "<b>test</b>", "username" => "XXXXX", "password" => "******", //"isHTML" => true );$mail = new MySendMail();$mail->setServer("smtp.126.com");$mail->setMailInfo($config);if(!$mail->sendMail()) { echo $mail->error(); return 1;}
希望本文所述对大家的php程序设计有所帮助。
