功能强大的PHP发邮件类

本文示例为大家分享了强大的PHP发邮件类，供大家参考，具体内容如下

    <?php
    class smtp
    {
    var $smtp_port;
    var $time_out;
    var $host_name;
    var $log_file;
    var $relay_host;
    var $debug;
    var $auth;
    var $user;
    var $pass;
    var $sock; 
    function smtp($relay_host = "", $smtp_port = 25,$auth = false,$user,$pass)
    {
    $this->debug = true;
    $this->smtp_port = $smtp_port;
    $this->relay_host = $relay_host;
    $this->time_out = 30; 
    $this->auth = $auth;
    $this->user = $user;
    $this->pass = $pass;

    $this->host_name = "localhost"; 
    $this->log_file ="";
    $this->sock = FALSE;
    } 
    function sendmail($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: $from<".$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: <".date("YmdHis", $sec).".".($msec*1000000).".".$mail_from.">\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)) {
    $this->log_write("E-mail has been sent to <".$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 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:<".$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;
    }

    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."<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;
    }
    }


    /**
    *实例化邮件类
    */
    $smtpserver = "smtp.163.com";              //SMTP服务器
    $smtpserverport =25;                      //SMTP服务器端口
    $smtpusermail = "240331511@163.com";      //SMTP服务器的用户邮箱
    $smtpemailto = "240331511@163.com";       //发送给谁
    $smtpuser = "240331511@163.com";         //SMTP服务器的用户帐号
    $smtppass = "123147mcl";                 //SMTP服务器的用户密码
    $mailsubject = "PHP100测试邮件系统";        //邮件主题
    $mailbody = "<h1>你的用户名是张三，密码是123147mcl </h1>";      //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);
    $smtp->debug = true;                     //是否显示发送的调试信息
    $smtp->sendmail($smtpemailto, $smtpusermail, $mailsubject, $mailbody, $mailtype);

    ?>

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。