從 php5 網管實驗室 看到的好物，由於是用 socket 的方式來寄信，所以主機就算沒有架設 SMTP 也可以寄，但前提是要有一台可以讓你 relay 的機器。
先 copy 下面這段程式碼儲存成 phpbb-smtp.php
<?php
/***************************************************************************
* smtp.php
* -------------------
* begin : Wed May 09 2001
* copyright : (C) 2001 The phpBB Group
* email : support@phpbb.com
*
* $Id: smtp.php,v 1.16.2.11 2005/09/27 20:24:35 grahamje Exp $
*
***************************************************************************/
/***************************************************************************
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
***************************************************************************/
define('SMTP_INCLUDED', 1);
//
// This function has been modified as provided
// by SirSir to allow multiline responses when
// using SMTP Extensions
//
function server_parse($socket, $response, $line = __LINE__)
{
$server_response = '';
while (substr($server_response, 3, 1) != ' ')
{
if (!($server_response = fgets($socket, 256)))
{
message_die(GENERAL_ERROR, "Couldn't get mail server response codes", "", $line, __FILE__);
}
}
if (!(substr($server_response, 0, 3) == $response))
{
message_die(GENERAL_ERROR, "Ran into problems sending Mail. Response: $server_response", "", $line, __FILE__);
}
}
// Replacement or substitute for PHP's mail command
function smtpmail($mail_to, $subject, $message, $headers = '')
{
global $board_config;
// Fix any bare linefeeds in the message to make it RFC821 Compliant.
$message = preg_replace("#(?<!\r)\n#si", "\r\n", $message);
if ($headers != '')
{
if (is_array($headers))
{
if (sizeof($headers) > 1)
{
$headers = join("\n", $headers);
}
else
{
$headers = $headers[0];
}
}
$headers = chop($headers);
// Make sure there are no bare linefeeds in the headers
$headers = preg_replace('#(?<!\r)\n#si', "\r\n", $headers);
// Ok this is rather confusing all things considered,
// but we have to grab bcc and cc headers and treat them differently
// Something we really didn't take into consideration originally
$header_array = explode("\r\n", $headers);
@reset($header_array);
$headers = '';
while(list(, $header) = each($header_array))
{
if (preg_match('#^cc:#si', $header))
{
$cc = preg_replace('#^cc:(.*)#si', '\1', $header);
}
else if (preg_match('#^bcc:#si', $header))
{
$bcc = preg_replace('#^bcc:(.*)#si', '\1', $header);
$header = '';
}
$headers .= ($header != '') ? $header . "\r\n" : '';
}
$headers = chop($headers);
$cc = explode(', ', $cc);
$bcc = explode(', ', $bcc);
}
if (trim($subject) == '')
{
message_die(GENERAL_ERROR, "No email Subject specified", "", __LINE__, __FILE__);
}
if (trim($message) == '')
{
message_die(GENERAL_ERROR, "Email message was blank", "", __LINE__, __FILE__);
}
// Ok we have error checked as much as we can to this point let's get on
// it already.
if( !$socket = @fsockopen($board_config['smtp_host'], 25, $errno, $errstr, 20) )
{
message_die(GENERAL_ERROR, "Could not connect to smtp host : $errno : $errstr", "", __LINE__, __FILE__);
}
// Wait for reply
server_parse($socket, "220", __LINE__);
// Do we want to use AUTH?, send RFC2554 EHLO, else send RFC821 HELO
// This improved as provided by SirSir to accomodate
if( !empty($board_config['smtp_username']) && !empty($board_config['smtp_password']) )
{
fputs($socket, "EHLO " . $board_config['smtp_host'] . "\r\n");
server_parse($socket, "250", __LINE__);
fputs($socket, "AUTH LOGIN\r\n");
server_parse($socket, "334", __LINE__);
fputs($socket, base64_encode($board_config['smtp_username']) . "\r\n");
server_parse($socket, "334", __LINE__);
fputs($socket, base64_encode($board_config['smtp_password']) . "\r\n");
server_parse($socket, "235", __LINE__);
}
else
{
fputs($socket, "HELO " . $board_config['smtp_host'] . "\r\n");
server_parse($socket, "250", __LINE__);
}
// From this point onward most server response codes should be 250
// Specify who the mail is from....
fputs($socket, "MAIL FROM: <" . $board_config['board_email'] . ">\r\n");
server_parse($socket, "250", __LINE__);
// Specify each user to send to and build to header.
$to_header = '';
// Add an additional bit of error checking to the To field.
$mail_to = (trim($mail_to) == '') ? 'Undisclosed-recipients:;' : trim($mail_to);
if (preg_match('#[^ ]+\@[^ ]+#', $mail_to))
{
fputs($socket, "RCPT TO: <$mail_to>\r\n");
server_parse($socket, "250", __LINE__);
}
// Ok now do the CC and BCC fields...
@reset($bcc);
while(list(, $bcc_address) = each($bcc))
{
// Add an additional bit of error checking to bcc header...
$bcc_address = trim($bcc_address);
if (preg_match('#[^ ]+\@[^ ]+#', $bcc_address))
{
fputs($socket, "RCPT TO: <$bcc_address>\r\n");
server_parse($socket, "250", __LINE__);
}
}
@reset($cc);
while(list(, $cc_address) = each($cc))
{
// Add an additional bit of error checking to cc header
$cc_address = trim($cc_address);
if (preg_match('#[^ ]+\@[^ ]+#', $cc_address))
{
fputs($socket, "RCPT TO: <$cc_address>\r\n");
server_parse($socket, "250", __LINE__);
}
}
// Ok now we tell the server we are ready to start sending data
fputs($socket, "DATA\r\n");
// This is the last response code we look for until the end of the message.
server_parse($socket, "354", __LINE__);
// Send the Subject Line...
fputs($socket, "Subject: $subject\r\n");
// Now the To Header.
fputs($socket, "To: $mail_to\r\n");
// Now any custom headers....
fputs($socket, "$headers\r\n\r\n");
// Ok now we are ready for the message...
fputs($socket, "$message\r\n");
// Ok the all the ingredients are mixed in let's cook this puppy...
fputs($socket, ".\r\n");
server_parse($socket, "250", __LINE__);
// Now tell the server we are done and close the socket...
fputs($socket, "QUIT\r\n");
fclose($socket);
return TRUE;
}
?>
要用它的話，參考這個範例 ~
<?php
include("phpbb-smtp.php");
//phpbb的內建的變數帶入
//指定relay的伺服器
$board_config['smtp_host']="yourrelaydomain.com.tw";
//指定帳號 :部份的relay server需要
$board_config['smtp_username']="";
//指定你的寄信密碼
$board_config['smtp_password']="";
//指定寄件人的email
$board_config['board_email']="";
//處理掉phpbb內定的訊息函數
function message_die($a,$b,$c) {}
//--------------------------------- 以下為寄信實例 ---------------------------------------//
//收件人email
$email="";
//
$subject="測試信件!!";
//內容
$contents="信件內容";
//標頭微調
$addheader .="From:".$board_config['board_email']."\r\n";
//指定信件的格式為文字格式或html格式及信件的內文編碼方式
$addheader .="Content-Type: text/plain;charset=utf8\r\n";
//
//$addheader .="Content-Type: text/html;charset=utf8\r\n";
//$addheader .="cc:".$board_config['board_email']."\r\n";
//$addheader .="bcc:".$board_config['board_email']."\r\n";
smtpmail($email,$subject,$contents,$addheader);
?>
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