PHP一个发送邮件的类

　　现在很多主机空间都是IIS上执行PHP程序，大多不能直接用mail()发送邮件，有了这个类只要你有注册过邮箱，就可以随意的发送邮件，速度也不慢哦。

//******************************
// smtp.php文件
//
//******************************

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 = 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\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: \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 \n");
} else {
$this->log_write("Error: Cannot send email 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:")) {
return $this->smtp_error("sending MAIL FROM command");
}

if (!$this->smtp_putcmd("RCPT", "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->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;


}


}


}


?>


//*****************************************************************
// *.php 使用文件，看清楚了，怎么使用在这里
//
//*****************************************************************



require (FILE_DIR."smtp.php");

$smtpserver = "smtp.xxx.com";//SMTP服务器


$smtpserverport =25;//SMTP服务器端口


$smtpusermail = "[e-mail]";//SMTP服务器的用户邮箱


$smtpemailto = "[e-mail]";//发送给谁


$smtpuser = "xxxxx";//SMTP服务器的用户帐号


$smtppass = "xxxxx";//SMTP服务器的用户密码


$mailsubject = "Test Subject";//邮件主题


$mailbody = "

This is a test mail

";//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);//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->debug = TRUE;//是否显示发送的调试信息


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


?>

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