如果不含圖檔:
     $mail = new html_mime_mail();
     $html =html內容;
     $mail->add_html($html, $text);
     $mail->build_message();
     $mail->send(收信人,收信email,發信人,發信email,標題,額外header);
--------------------------------------------------------------------------------
    如果含圖檔:
    $url=www.cuti.com.my/ad/;    //圖檔位址 開頭無http:// 結尾有斜線
    $path=/mail/ad/;    //圖檔路徑 結尾有斜線
$filename1 = 'a.jpg';
    $backgrnd1 = fread($fp = fopen($path.$filename1, 'r'), filesize($path.$filename1));
    fclose($fp);
    ...依此類推...
    $filename6 = 'f.gif';
        $backgrnd6 = fread($fp = fopen($path.$filename6, 'r'), filesize($path.$filename6));
        fclose($fp);
$mail->add_html_image($backgrnd1,$filename1,'image/jpeg','http://'.$url.$filename1);
    ...依此類推...
    $mail->add_html_image($backgrnd6,$filename6,'image/gif','http://'.$url.$filename6);
$mail = new html_mime_mail();
     $html =html含圖內容;
     $mail->add_html($html, $text);
     $mail->build_message();
     $mail->send(收信人,收信email,發信人,發信email,標題,額外header);