用PHP5写的smtp类，支持身份验证、附件、抄送、暗送

来源：互联网发布：天谕怎么导出捏脸数据编辑：程序博客网时间：2024/04/28 07:12

发一个用PHP5写的smtp邮件发送类，支持smtp身份验证，可同时给多人发信，同时支持抄送、暗送、附件等，喜欢的朋友帮我顶起来。这个类需要Fileinfo扩展的支持，有关Fileinfo扩展的更多信息请查看http://www.phpx.com/viewarticle.php?id=115888。

　　类文件如下：

<?
/*+--------------------------------------------------+
  |文件名:Smtp.php                                 |
  |创建人:Simon.Ye                                 |
  |创建时间:2006-10-08                               |
  |说　　明:smtp邮件发送类                           |
  +--------------------------------------------------+*/

class smtp
{
    //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 = 'gb2312';                     //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->disconnect();
    }

    //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]", $res))
        {
            if($this->_debug) $this->showMessage('请求成功！');
        }
        else
        {
            if($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)
    {
        $comment = "/([^()]*/)";

        while(ereg($comment, $email))
        {
            $email = ereg_replace($comment, "", $email);
        }

        $email = ereg_replace("([ /t/r/n])+", "", $email);
        $email = ereg_replace("^.*<(.+)>.*$", "/1", $email);

        return $email;
    }
}
?>

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