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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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