php smtp实现发送邮件功能


            本文实例为大家分享了php smtp发送邮件功能的具体代码，供大家参考，具体内容如下





<?php

header("Content-Type: text/html; charset=utf-8");

 

class smtp

{

 /* Public Variables */

 var $smtp_port;

 var $time_out;

 var $host_name;

 var $log_file;

 var $relay_host;

 var $debug;

 var $auth;

 var $user;

 var $pass;

 

 /* Private Variables */ 

 var $sock;

 

 /* Constractor */

 function smtp($relay_host = "", $smtp_port = 25,$auth = false,$user,$pass)

 {

  $this->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->log_file = "";

  $this->sock = FALSE;

}

 

 /* Main Function */

 function sendmail($to, $from, $subject = "", $body = "", $mailtype, $cc = "", $bcc = "", $additional_headers = "")

 {

  $mail_from = $this->get_address($this->strip_comment($from));

  $body = preg_replace("/(^|(\r\n))(\.)/", "\1.\3", $body);

  $header = "MIME-Version:1.0\r\n";

  if($mailtype=="HTML")

  {

   $header .= "Content-Type:text/html\r\n";

  }

  $header .= "To: ".$to."\r\n";

  if ($cc != "") 

  {

   $header .= "Cc: ".$cc."\r\n";

  }

  $header .= "From: $from<".$from.">\r\n";

  $header .= "Subject: ".$subject."\r\n";

  $header .= $additional_headers;

  $header .= "Date: ".date("r")."\r\n";

  $header .= "X-Mailer:By Redhat (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)));

   }

  if ($bcc != "") 

  {

   $TO = array_merge($TO, explode(",", $this->strip_comment($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");

  }

  return $sent;

 }

 

 /* Private Functions */

 function smtp_send($helo, $from, $to, $header, $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 <CR><LF>.<CR><LF> [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)

 {

  $domain = preg_replace("^.+@([^@]+)$", "\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->smtp_port, $errno, $errstr, $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 (!preg_match("/^[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 (preg_match($comment, $address)) 

  {

   $address = preg_replace($comment, "", $address);

  }

  return $address;

 }

 

 function get_address($address)

 {

  $address = preg_replace("/([ \t\r\n])+/", "", $address);

  $address = preg_replace("/^.*<(.+)>.*$/", "\1", $address);

  return $address;

 }

 

 function smtp_debug($message)

 {

  if ($this->debug) 

  {

   echo $message;

  }

 }

 

}

?>







调用





<?php

header("Content-Type: text/html; charset=utf-8");

 

//引入发送邮件类

require("smtp.php");

//使用163邮箱服务器

$smtpserver = "smtp.163.com";

//163邮箱服务器端口

$smtpserverport = 25;

//你的163服务器邮箱账号

$smtpusermail = "xxx@163.com";

//收件人邮箱

$smtpemailto = "xxx@qq.com";

 

//你的邮箱账号(去掉@163.com)

$smtpuser = "xxx";//你的163邮箱去掉后面的163.com

//你的邮箱密码

$smtppass = "xxx"; //你的163邮箱SMTP的授权码，千万不要填密码！！！

 

//邮件主题

$mailsubject = "测试邮件发送";

//邮件内容

$mailbody = "PHP+MySQL";

//邮件格式（HTML/TXT）,TXT为文本邮件

$mailtype = "TXT";

//这里面的一个true是表示使用身份验证,否则不使用身份验证.

$smtp = new smtp($smtpserver,$smtpserverport,true,$smtpuser,$smtppass);

//是否显示发送的调试信息

$smtp->debug = TRUE;

//发送邮件

$smtp->sendmail($smtpemailto, $smtpusermail, $mailsubject, $mailbody, $mailtype);

 

?>









代码链接：

sendmail

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