php 邮件类，php邮件

编写一个用php socket 发送邮件的类，简单好用，当用到php程序发送邮件时，

而在163服务器中，可以在RCPT命令中还可以验证163邮箱是否存在，还有很多用处，

我现在暂时还没想到。

记录下，有需要的朋友可以参考下

class mail {

    /**
    * 这些即可发送email
    */
   public $host;
   public $port;
   public $user;
   public $password;
   public $mail_form;
   public $rcpt;

    public $body;

    /**
    * 附属在 header 中信息
    */
    public $to_name;
    public $from_name;
    public $subject;
    public $html;

    public $connection;

    public $msg = array();

    // 进行参数初始化
    public function __construct($conf, $rcpt, $header, $body, $html = true) {

        try {

            $this->host = $conf['host'];
            $this->port = $conf['port'];
            $this->user = $conf['user'];
            $this->password = $conf['password'];

            $this->rcpt = $rcpt;

            $this->to_name   = $header['to_name'];
            $this->from_name = $header['from_name'];
            $this->subject   = $header['subject'];
            $this->html      = $html;

            $this->body = base64_encode($body);

        } catch (Exception $e) {
            throw new Exception($e->getMessage());
        }

    }

    public function connect() {
        $this->connection = @fsockopen($this->host, '25', $errno, $errstr, 10);
        if (!$this->connection) {
            throw new Exception('connect failed!');
        }
        $greet = $this->callback_code();

    }

    public function helo() {
        if($this->is_connect() &&
            $this->send_data('HELO ' . $this->host) &&
            $this->callback_code() == 250
            ) {
             return true;
        } else {
            throw new Exception($this->get_callback_msg_lastest());

        }
    }

    public function send_data($cmd) {
        if (is_resource($this->connection)) {
            return @fwrite($this->connection, $cmd."\r\n", strlen($cmd) + 2);
        }
    }

    public function auth(){
        if ($this->is_connect() &&
            $this->send_data('AUTH LOGIN') && $this->callback_code() == 334 &&
            $this->send_data(base64_encode($this->user)) && $this->callback_code() == 334 &&
            $this->send_data(base64_encode($this->password)) && $this->callback_code() == 235 ) {
            return true;
        } else {
            throw new Exception($this->get_callback_msg_lastest());
        }
    }

   public function Mail() {

        if ($this->is_connect() &&
            $this->send_data("MAIL FROM:user>") &&
            $this->callback_code() == 250
            ) {
            return true;
        } else {
           throw new Exception($this->get_callback_msg_lastest());
        }
   }

    public function is_connect() {
        return is_resource($this->connection);
    }

    public function callback_code() {
        if ($this->is_connect()) {
            $msg = fgets($this->connection);
            if (!empty($msg)) {
                $code = substr($msg, 0, strpos($msg, ' '));
            } else {
                return '';
            }
            $this->msg[] = $msg;
            return $code;
        }
    }

    public function get_callback_msg_lastest() {
        return end($this->msg);
    }

    public function rcpt($rcpt) {
        if ($this->is_connect() &&
            $this->send_data("RCPT TO:") &&
            $this->callback_code() == 250
            ) {
            return true;
        } else {
            throw new Exception($this->get_callback_msg_lastest());
        }
    }

    public function data() {
        if ($this->is_connect() &&
            $this->send_data('DATA') &&
            $this->callback_code() == 354) {
            return true;
        } else {
            throw new Exception($this->get_callback_msg_lastest());
        }
    }

    public function send_mail() {

       try {

           $this->connect();
           $this->helo();
           $this->auth();
           $this->Mail();

            if (is_array($this->rcpt)) {
                foreach ($this->rcpt as $rcpt) {
                    $this->rcpt($rcpt);
                }

            } else {
                $this->rcpt($this->rcpt);
            }

           $this->data();

            $header = str_replace("\r\n" . '.', "\r\n" . '..', trim(implode("\r\n", $this->get_header())));
            $body   = str_replace("\r\n" . '.', "\r\n" . '..', $this->body);
            $body   = substr($body, 0, 1) == '.' ? '.' . $body : $body;

           $this->send_data($header);
           $this->send_data('');
           $this->send_data($body);
           $this->send_data('.');

           if ($this->callback_code() != 250) {
               throw new Exception('send mail falied!');
           }
            return true;
       } catch (Exception $e) {
           throw new Exception($e->getMessage());
       }

    }

    //只能检测同一邮件服务器上email address
    public function is_email_exist() {

    }

    public function get_header() {

        $header = array();
        $content_type = $this->html ? 'text/html;' : 'text/plain;' ;

        $headers [] = 'Date: ' . gmdate('D, j M Y H:i:s') . ' +0000';
        $to_mail = is_array($this->rcpt) ? implode(',', $this->rcpt) : $this->rcpt;
        $headers [] = 'To: "' . '=? utf8?B?' . base64_encode($this->to_name) . '?=' . '" ';
        $headers [] = 'From: "' . '=?utf8?B?' . base64_encode($this->from_name) . '?=' . '" user . '>';
        $headers [] = 'Subject: ' . '=?utf8?B?' . base64_encode($this->subject) . '?=';
        $headers [] = 'Content-Type:'.$content_type . ' charset=utf8; format=flowed';
        $headers [] = 'Content-Transfer-Encoding: base64';
        $headers [] = 'Content-Disposition: inline';

        return $headers;
    }

}

/**
* 用函数封装类
*/
function send_mail($conf, $rcpt, $header, $body) {

    $mail = new mail($conf, $rcpt, $header, $body);

    if ($mail->send_mail()) {
        echo 'send email successfully!';
    } else {
        echo 'falied!';
    }

}

$conf = array(
    'host'     => 'smtp.163.com',
    'port'     => '25',
    'user'     => 'z1298703836@163.com',
    'password' => 'zeiwei123',
     );

$rcpt = array(
    'z1298703836@sina.com',
    'wei.zen@baisonmail.com'
    );

$header = array(
    'to_name'   => 'willstang',
    'from_name' => 'sinawill',
    'subject'   => 'tst of reo ',
    );

$body = '

sfsfsd

';

$mail = new mail($conf, $rcpt, $header, $body);

$mail->send_mail();

echo '

';<br>print_r($mail->msg);
<p> </p>
<p>熟悉邮件发送的过程，它的stmp协议，</p>
<p>还有一些发送的细节，如：发送的内容分为两部分， 一部分在头部，另一部分是email的正文，</p>
<p> </p>
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