脚本宝典收集整理的这篇文章主要介绍了PHP使用SMTP邮件服务器发送邮件示例，脚本宝典觉得挺不错的，现在分享给大家，也给大家做个参考。

本文实例讲述了PHP使用SMTP邮件服务器发送邮件。分享给大家供大家参考，具体如下：

用之前记得先去163注册一个邮箱，然后打开SMTP服务，当然也可以使用QQ邮箱等，但配置信息得改。

如图所示，开启QQ邮箱SMTP服务：

话不多说，直接上代码

email.class.PHP 定义发送邮件的库

PHP;">
debug   = FALSE;
    $this->smtp_port = $smtp_port;
    $this->relay_host = $relay_host;
    $this->time_out  = 30; //is used in fsockopen()
    #
    $this->auth    = $auth; //auth
    $this->user    = $user;
    $this->pass    = $pass;
    #
    $this->host_name = "localhost"; //is used in HELO command
    // $this->host_name = "smtp.163.COM"; //is used in HELO command
    $this->LOG_file  = "";
    $this->sock = FALSE;
  }
  /* Main Function */
  function sendmail($to,$From,$subject = "",$body = "",$mailtyPE,$cc = "",$bcc = "",$addITional_headers = "")
  {
    $header  = "";
    $mail_from = $this->get_address($this->strip_comment($from));
    $body   = mb_ereg_replace("(^|(\r\n))(\\.)","\\1.\\3",$body);
    $header .= "MIME-Version:1.0\r\n";
    if ($mailtype == "HTML") { //邮件发送类型
      //$header .= "Content-type:text/html\r\n";
      $header .= 'Content-type: text/html; charset=utf-8' . "\r\n";
    }
    $header .= "To: " . $to . "\r\n";
    if ($cc != "") {
      $header .= "Cc: " . $cc . "\r\n";
    }
    $header .= "From: " . $from . "\r\n";
    // $header .= "From: $from<".$from.">\r\n";>显示邮箱地址，不够人性化
    $header .= "Subject: " . $subject . "\r\n";
    $header .= $additional_headers;
    $header .= "Date: " . date("r") . "\r\n";
    $header .= "X-Mailer:By (PHP/" . PHPversion() . ")\r\n";
    list($msec,$sec) = explode(" ",microtime());
    $header .= "Message-iD: <" .="" date("ymdhis",$sec)="" .="" "."="" .="" ($msec="" *="" 1000000)="" .="" "."="" .="" $mail_from="" .="" ">\r\n";="" $to="explode(",",$this-">strip_comment($to));
    if ($cc != "") {
      $TO = array_merge($TO,explode(",$this->strip_comment($cc))); //合并一个或多个数组
    }
    if ($bcc != "") {
      $TO = array_merge($TO,$this->strip_comment($bcc)));
    }
    $sent = TRUE;
    foreach ($TO as $rcpt_to) {
      $rcpt_to = $this->get_address($rcpt_to);
      if (!$this->smtp_sockopen($rcpt_to)) {
        $this->log_write("Error: Cannot send email to " . $rcpt_to . "\n");
        $sent = FALSE;
        continue;
      }
      if ($this->smtp_send($this->host_name,$mail_from,$rcpt_to,$header,$body)) {
        $this->log_write("E-mail has been sent to <" .="" $rcpt_to="" .="" ">\n");="" }="" else="" {="" $this-="">log_write("Error: Cannot send email to <" .="" $rcpt_to="" .="" ">\n");="" $sent="FALSE;" }="" fclose($this-="">sock);
      $this->log_write("Disconnected from remote host\n");
    }
    echo "
";
    //echo $header;
    return $sent;
  }
  /* PRivate Functions */
  function smtp_send($helo,$to,$body = "")
  {
    if (!$this->smtp_putcmd("HELO",$helo)) {
      return $this->smtp_error("sending HELO command");
    }
    #auth
    if ($this->auth) {
      if (!$this->smtp_putcmd("AUTH LOgin",base64_encode($this->user))) {
        return $this->smtp_error("sending HELO command");
      }
      if (!$this->smtp_putcmd("",base64_encode($this->pass))) {
        return $this->smtp_error("sending HELO command");
      }
    }
    #
    if (!$this->smtp_putcmd("MAIL","FROM:<" .="" $from="" .="" ">"))="" {="" return="" $this-="">smtp_error("sending MAIL FROM command");
    }
    if (!$this->smtp_putcmd("RCPT","TO:<" .="" $to="" .="" ">"))="" {="" return="" $this-="">smtp_error("sending RCPT TO command");
    }
    if (!$this->smtp_putcmd("DATA")) {
      return $this->smtp_error("sending DATA command");
    }
    if (!$this->smtp_message($header,$body)) {
      return $this->smtp_error("sending message");
    }
    if (!$this->smtp_eom()) {
      return $this->smtp_error("sending . [EOM]");
    }
    if (!$this->smtp_putcmd("QUIT")) {
      return $this->smtp_error("sending QUIT command");
    }
    return TRUE;
  }
  function smtp_sockopen($address)
  {
    if ($this->relay_host == "") {
      return $this->smtp_sockopen_mx($address);
    } else {
      return $this->smtp_sockopen_relay();
    }
  }
  function smtp_sockopen_relay()
  {
    $this->log_write("Trying to " . $this->relay_host . ":" . $this->smtp_port . "\n");
    $this->sock = @fsockopen($this->relay_host,$this->smtp_port,$errno,$errstr,$this->time_out);
    if (!($this->sock && $this->smtp_ok())) {
      $this->log_write("Error: Cannot connenct to relay host " . $this->relay_host . "\n");
      $this->log_write("Error: " . $errstr . " (" . $errno . ")\n");
      return FALSE;
    }
    $this->log_write("Connected to relay host " . $this->relay_host . "\n");
    return TRUE;
    ;
  }
  function smtp_sockopen_mx($address)
  {
    $domain = ereg_replace("^.+@([^@]+)$","\\1",$address);
    if (!@getmxrr($domain,$MXHOSTS)) {
      $this->log_write("Error: Cannot resolve MX \"" . $domain . "\"\n");
      return FALSE;
    }
    foreach ($MXHOSTS as $host) {
      $this->log_write("Trying to " . $host . ":" . $this->smtp_port . "\n");
      $this->sock = @fsockopen($host,$this->time_out);
      if (!($this->sock && $this->smtp_ok())) {
        $this->log_write("Warning: Cannot connect to mx host " . $host . "\n");
        $this->log_write("Error: " . $errstr . " (" . $errno . ")\n");
        continue;
      }
      $this->log_write("Connected to mx host " . $host . "\n");
      return TRUE;
    }
    $this->log_write("Error: Cannot connect to any mx hosts (" . implode(",$MXHOSTS) . ")\n");
    return FALSE;
  }
  function smtp_message($header,$body)
  {
    fputs($this->sock,$header . "\r\n" . $body);
    $this->smtp_debug("> " . str_replace("\r\n","\n" . "> ",$header . "\n> " . $body . "\n> "));
    return TRUE;
  }
  function smtp_eom()
  {
    fputs($this->sock,"\r\n.\r\n");
    $this->smtp_debug(". [EOM]\n");
    return $this->smtp_ok();
  }
  function smtp_ok()
  {
    $response = str_replace("\r\n","",fgets($this->sock,512));
    $this->smtp_debug($response . "\n");
    if (!mb_ereg("^[23]",$response)) {
      fputs($this->sock,"QUIT\r\n");
      fgets($this->sock,512);
      $this->log_write("Error: Remote host returned \"" . $response . "\"\n");
      return FALSE;
    }
    return TRUE;
  }
  function smtp_putcmd($cmd,$arg = "")
  {
    if ($arg != "") {
      if ($cmd == "")
        $cmd = $arg;
      else
        $cmd = $cmd . " " . $arg;
    }
    fputs($this->sock,$cmd . "\r\n");
    $this->smtp_debug("> " . $cmd . "\n");
    return $this->smtp_ok();
  }
  function smtp_error($string)
  {
    $this->log_write("Error: Error occurred while " . $string . ".\n");
    return FALSE;
  }
  function log_write($message)
  {
    $this->smtp_debug($message);
    if ($this->log_file == "") {
      return TRUE;
    }
    $message = date("M d H:i:s ") . get_current_user() . "[" . getmypid() . "]: " . $message;
    if (!@file_exists($this->log_file) || !($fp = @fopen($this->log_file,"a"))) {
      $this->smtp_debug("Warning: Cannot open log file \"" . $this->log_file . "\"\n");
      return FALSE;
    }
    flock($fp,LOCK_EX);
    fputs($fp,$message);
    fclose($fp);
    return TRUE;
  }
  function strip_comment($address)
  {
    $comment = "\\([^()]*\\)";
    while (mb_ereg($comment,$address)) {
      $address = mb_ereg_replace($comment,$address);
    }
    return $address;
  }
  function get_address($address)
  {
    $address = mb_ereg_replace("([ \t\r\n])+",$address);
    $address = mb_ereg_replace("^.*<(.+)>.*$",$address);
    return $address;
  }
  function smtp_debug($message)
  {
    if ($this->debug) {
      echo $message . "
";
    }
  }
  function get_attach_type($image_tag) //
  {
    $filedata = array();
    $img_file_con = fopen($image_tag,"r");
    unset($image_data);
    while ($tem_buffer = AddSlashes(fread($img_file_con,filesize($image_tag))))
      $image_data .= $tem_buffer;
    fclose($img_file_con);
    $filedata['context'] = $image_data;
    $filedata['filename'] = basename($image_tag);
    $extension      = substr($image_tag,strrpos($image_tag,"."),strlen($image_tag) - strrpos($image_tag,"."));
    switch ($extension) {
      case ".gif":
        $filedata['type'] = "image/gif";
        break;
      case ".gz":
        $filedata['type'] = "application/x-gzip";
        break;
      case ".htm":
        $filedata['type'] = "text/html";
        break;
      case ".html":
        $filedata['type'] = "text/html";
        break;
      case ".jpg":
        $filedata['type'] = "image/jpeg";
        break;
      case ".tar":
        $filedata['type'] = "application/x-tar";
        break;
      case ".txt":
        $filedata['type'] = "text/plain";
        break;
      case ".zip":
        $filedata['type'] = "application/zip";
        break;
      default:
        $filedata['type'] = "application/octet-stream";
        break;
    }
    return $filedata;
  }
}
?>

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