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关于PHP发送邮件的两个类（找了好久）

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Libérer： 2016-07-30 13:31:08
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需要用PHP发送邮件,不想要PHPmailer那么复杂,找来找去,总算找到了一个好用的,分享出来,PHP邮件发送类,一共包含两个文件.代码如下：

sent_mail.php

<?php require_once(&#39;email.class.php&#39;);
//##########################################
$smtpserver = "smtp.163.com";//SMTP服务器
$smtpserverport = 25;//SMTP服务器端口
$smtpusermail = "*********@163.com";//SMTP服务器的用户邮箱
$smtpemailto = "*********@qq.com";//发送给谁
$smtpuser = "*********@163.com";//SMTP服务器的用户帐号
$smtppass = "********";//SMTP服务器的用户密码
$mailsubject = "PHP测试邮件系统";//邮件主题
$mailbody = "<h1> 这是一个测试程序";//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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email.class.php

<?php class smtp
{
    /* Public Variables */
    public $smtp_port;
    public $time_out;
    public $host_name;
    public $log_file;
    public $relay_host;
    public $debug;
    public $auth;
    public $user;
    public $pass;

    /* Private Variables */
    private $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 = preg_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");
        }
        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:")) {
            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 <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)
    {
        $domain = preg_replace("/^.+@([^@]+)$/", "\\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 (!preg_match("/^[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)
    {
        $comment = "/\\([^()]*\\)/";
        while (preg_match($comment, $address)) {
            $address = preg_replace($comment, "", $address);
        }

        return $address;
    }

    function get_address($address)
    {
        $address = preg_replace("/([ \t\r\n])+/", "", $address);
        $address = preg_replace("/^.*.*$/", "\\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;
    }

} // end class 
?> </lf></cr></lf></cr>
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版权声明：本文为博主原创文章，未经博主允许不得转载。

以上就介绍了关于PHP发送邮件的两个类（找了好久），包括了方面的内容，希望对PHP教程有兴趣的朋友有所帮助。

source：php.cn
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