发送邮件

来源：互联网发布：p2p理财安全吗知乎编辑：程序博客网时间：2024/05/01 08:32

<?php

class smtp_zlh{
//相关属性定义
   private $_host;                                   //smtp服务器地址
   private $_auth;                                   //是否需要身份验证
   private $_user;                                   //smtp帐号
   private $_pass;                                   //smtp密码
   private $_debug = false;                          //是否显示调试信息
   private $_magicFile;                              //mime文件所在路径
   private $_Subject;                                //邮件主题
   private $_From;                                   //发送人邮箱地址
   private $_To = array();                           //收件人
   private $_Cc = array();                           //抄送
   private $_Bcc = array();                          //暗送
   private $_attachment = array();                   //附件
   private $_mailtype = 'text';                      //邮件类型(''text'':纯文本,''html'':HTML邮件)
   private $_charset = 'utf8';                     //邮件编码
   private $_mimemail;                               //邮件内容
   private $_socket;                                 //smtp连接
   private $_port = 25;                              //smtp端口
   private $_timeout = 30;                           //超时时间

   //构造函数
   public function __construct($host, $auth = false, $user = '', $pass = '')     {
   $this->_host = $host;
   $this->_auth = $auth;
   $this->_user = $user;
   $this->_pass = $pass;
   }

   //设置是否显示调试信息
   public function setDebug($boolDebug)     {
   $this->_debug = $boolDebug;
   }

   //设置mime文件所在路径
   public function setMagicFile($filename)     {
   $this->_magicFile = $filename;
   }

   //设置邮件主题
   public function setSubject($str)     {
   $this->_Subject = $str;
   }

   //设置发件人
   public function setFrom($email)     {
   $email = $this->stripComment($email);
   $this->_From = $email;
   }

   //添加收件人
   public function addTo($email)     {
   $email = $this->stripComment($email);
   $this->_To[] = $email;
   }
   //添加抄送人
   public function addCc($email)     {
   $email = $this->stripComment($email);
   $this->_Cc[] = $email;
   }
   //添加暗送人
public function addBcc($email)     {
     $email = $this->stripComment($email);
     $this->_Bcc[] = $email;
}
//添加附件
public function addAttachment($filename)     {
     if(is_file($filename)) $this->_attachment[] = $filename;
}
//设置邮件类型
public function setMailType($type)     {
       $this->_mailtype = $type;
    }
     //设置邮件编码
public function setCharset($strCharset)     {
           $this->_charset = $strCharset;
   }

    //设置邮件内容
public function setMimeMail($str)     {
        $boundary = uniqid('');
  $this->_mimemail = "From: " . $this->_From . "\r\n";
  $this->_mimemail .= "Reply-To: " . $this->_From . "\r\n";
  $this->_mimemail .= "To: " . implode(",", $this->_To) . "\r\n";
  if(count($this->_Cc)) $this->_mimemail .= "Cc: " . implode(",", $this->_Cc) . "\r\n";
  if(count($this->_Bcc)) $this->_mimemail .= "Bcc: " . implode(",", $this->_Bcc) . "\r\n";
  $this->_mimemail .= "Subject: " . $this->_Subject . "\r\n";
  $this->_mimemail .= "Message-ID: <" . time() . "." . $this->_From . ">\r\n";
  $this->_mimemail .= "Date: " . date("r") . "\r\n";
  $this->_mimemail .= "MIME-Version: 1.0\r\n";
  $this->_mimemail .= "Content-type: multipart/mixed; boundary=\"" . $boundary . "\"\r\n\r\n";
  $this->_mimemail .= "--" . $boundary . "\r\n";
  if($this->_mailtype == 'text')         {
   $this->_mimemail .= "Content-type: text/plain; charset=\"" . $this->_charset . "\"\r\n\r\n";
   }
   else if($this->_mailtype == 'html')         {
    $this->_mimemail .= "Content-type: text/html; charset=\"" . $this->_charset . "\"\r\n\r\n";
    }
    $this->_mimemail .= $str . "\r\n\r\n";
    if(count($this->_attachment))         {
     $finfo = new finfo(FILEINFO_MIME, $this->_magicFile);
     foreach($this->_attachment as $k => $filename)             {
      $f = @fopen($filename, 'r');
      if(!$f) continue;
      $mimetype = $finfo->file(realpath($filename));
      $attachment = @fread($f, filesize($filename));
      $attachment = base64_encode($attachment);
      $attachment = chunk_split($attachment);
      $this->_mimemail .= "--" . $boundary . "\r\n";
      $this->_mimemail .= "Content-type: " . $mimetype . "; name=" . basename($filename) . "\r\n";
      $this->_mimemail .= "Content-disposition: attachment; filename=" . basename($filename) . "\r\n";
      $this->_mimemail .= "Content-transfer-encoding: base64\r\n\r\n";
      $this->_mimemail .= $attachment . "\r\n\r\n";
      unset($f);
      unset($mimetype);
      unset($attachment);
      }
    }
  $this->_mimemail .= "--" . $boundary . "--";
  }

     public function send(){
   $arrToEmail = $this->_To;
   if(count($this->_Cc))
    $arrToEmail = array_merge($arrToEmail, $this->_Cc);
   if(count($this->_Bcc))
    $arrToEmail = array_merge($arrToEmail, $this->_Bcc);
   $this->connect();
   $this->sendCMD('HELO localhost');
   $this->smtpOK();
   if($this->_auth)         {
    $this->sendCMD('AUTH LOGIN ' . base64_encode($this->_user));
    $this->smtpOK();
    $this->sendCMD(base64_encode($this->_pass));
    $this->smtpOK();
    }
   $this->sendCMD('MAIL FROM:<' . $this->_From . '>');
   $this->smtpOK();
   foreach($arrToEmail as $k => $toEmail)         {
    $this->sendCMD('RCPT TO:<' . $toEmail . '>');
    $this->smtpOK();
   }
   $this->sendCMD('DATA');
   $this->smtpOK();
   $this->sendCMD($this->_mimemail);
   $this->smtpOK();
   $this->sendCMD('.');
   //$this->smtpOK();
   $this->smtpOK();
   $this->disconnect();
   return true;
  }
    //连接smtp服务器
private function connect(){
  $fp = @fsockopen($this->_host, $this->_port, $errno, $errstr, $this->_timeout);
  if(!$fp){
   if($this->_debug) $this->showMessage('错误:无法与smtp服务器建立连接！');
    die();
   }else {
    $this->_socket = $fp; if($this->_debug)
    $this->showMessage('正在与smtp服务器建立连接...成功！');
   }
}
//关闭smtp服务器连接
private function disconnect(){
  $this->sendCMD('QUIT');
  @fclose($this->_socket);
  $this->_socket = null;
  if($this->_debug) $this->showMessage('断开与smtp服务器的连接');
}

//显示信息
private function showMessage($msg){
echo "[" . date("H:i") . "]" . $msg . "<br/>";
}
//发送指令
private function sendCMD($cmd){
@fputs($this->_socket, $cmd . "\r\n");
if($this->_debug) $this->showMessage($cmd);
}
//判断指令是否成功
   private function smtpOK(){
   $res = str_replace("\r\n", "", @fgets($this->_socket, 512));
      //if(ereg("^[23]", $res))
     if(preg_match("/^[23]/", $res)){
     if($this->_debug){
       $this->showMessage('请求成功！');
       return true;
     }
     } else{
     if($this->_debug) $this->showMessage('错误:服务器返回信息<' . $res . '>');
     $this->disconnect();
     }
}

//过滤邮箱地址中的非法字符
private function stripComment($email)     {
  /** ereg 与 ereg_replace在5.3中已经取消,由于是内部使用,所以对此不做处理.
       $comment = "$[^()]*$";
        //while(ereg($comment, $email))
         while(preg_match($comment, $email))         {
         $email = ereg_replace($comment, "", $email);
           //$email = preg_match($comment, "", $email);         }
               $email = ereg_replace("([ \t\r\n])+", "", $email);
//$email = preg_match("([ \t\r\n])+", "", $email);
    $email = ereg_replace("^.*<(.+)>.*$", "\1", $email);
           //$email = preg_match("^.*<(.+)>.*$", "\1", $email);
            * return $email;
         */
     return $email;
}
}