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

<?phpclass 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() && $this->send_data("MAIL FROM:<$this->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() && $this->send_data("RCPT TO:<$rcpt>") && $this->callback_code() == 250 ) { return true; } else { throw new Exception($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) . '?=' . '" <' . $to_mail . '>'; $headers [] = 'From: "' . '=?utf8?B?' . base64_encode($this->from_name) . '?=' . '" <' . $this->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!'; }}$conf = array( 'host' => 'smtp.163.com', 'port' => '25', 'user' => '[email protected]', 'password' => 'zeiwei123', );$rcpt = array( '[email protected]', '[email protected]' );$header = array( 'to_name' => 'willstang', 'from_name' => 'sinawill', 'subject' => 'tst of reo ', );$body = '<h1 style="color:red;">sfsfsd</h1>';$mail = new mail($conf, $rcpt, $header, $body);$mail->send_mail();echo '<PRe>';print_r($mail->msg);

熟悉邮件发送的过程，它的stmp协议，

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，