PHP的一个完整SMTP类(解决邮件服务器需要验证时的问题)

smtp.php

<?php
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("(^|(rn))(.)", "1.3", $body);

$header .= "MIME-Version:1.0rn";

if($mailtype=="HTML"){

$header .= "Content-Type:text/htmlrn";

}

$header .= "To: ".$to."rn";

if ($cc != "") {

$header .= "Cc: ".$cc."rn";

}

$header .= "From: $from<".$from."rn";

$header .= "Subject: ".$subject."rn";

$header .= $additional_headers;

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

$header .= "X-Mailer:By Redhat (PHP/".phpversion().")rn";

list($msec, $sec) = explode(" ", microtime());

$header .= "Message-ID: <".date("YmdHis", $sec).".".($msec*1000000).".".$mail_from."rn";

$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 hostn");

}

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;

}