<?php
class smtp
{
var $smtp_port;
var $time_out;
var $host_name;
var $log_file;
var $relay_host;
var $debug;
var $auth;
var $user;
var $pass;
var $sock; 
function smtp($relay_host = \"\", $smtp_port = 25,$auth = false,$user,$pass)
{
$this->debug = true;
$this->smtp_port = $smtp_port;
$this->relay_host = $relay_host;
$this->time_out = 30; 
$this->auth = $auth;
$this->user = $user;
$this->pass = $pass;

$this->host_name = \"localhost\"; 
$this->log_file =\"\";
$this->sock = FALSE;
} 
function sendmail($to, $from, $subject = \"\", $body = \"\", $mailtype, $cc = \"\", $bcc = \"\", $additional_headers = \"\")
{
$mail_from = $this->get_address($this->strip_comment($from));
$body = ereg_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\");
}
echo \"<br>\";
echo $header;
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)
{
$domain = ereg_replace(\"^.+@([^@]+)$\", \"\\\\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->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 (!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)
{
$comment = \"\\\\([^()]*\\\\)\";
while (ereg($comment, $address)) {
$address = ereg_replace($comment, \"\", $address);
}

return $address;
}

function get_address($address)
{
$address = ereg_replace(\"([ \\t\\r\\n])+\", \"\", $address);
$address = ereg_replace(\"^.*<(.+)>.*$\", \"\\\\1\", $address);

return $address;
}

function smtp_debug($message)
{
if ($this->debug) {
echo $message.\"<br>\";
}
}

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;
}
}


/**
*实例化邮件类
*/
$smtpserver = \"smtp.163.com\";              //SMTP服务器
$smtpserverport =25;                      //SMTP服务器端口
$smtpusermail = \"240331511@163.com\";      //SMTP服务器的用户邮箱
$smtpemailto = \"240331511@163.com\";       //发送给谁
$smtpuser = \"240331511@163.com\";         //SMTP服务器的用户帐号
$smtppass = \"123147mcl\";                 //SMTP服务器的用户密码
$mailsubject = \"PHP100测试邮件系统\";        //邮件主题
$mailbody = \"<h1>你的用户名是张三，密码是123147mcl </h1>\";      //邮件内容
$mailtype = \"HTML\";                      //邮件格式（HTML/TXT）,TXT为文本邮件
$smtp = new smtp($smtpserver,$smtpserverport,true,$smtpuser,$smtppass);
$smtp->debug = true;                     //是否显示发送的调试信息
$smtp->sendmail($smtpemailto, $smtpusermail, $mailsubject, $mailbody, $mailtype);

?>