$docList = 'image/gif,image/jpeg,image/jpg,image/pjpeg,image/x-png,application/msword,application/rtf,text/plain,application/octet-stream';
if (is_uploaded_file($_FILES['file']['tmp_name']) && eregi($_FILES['file']['type'],$docList)){
$nameFile = $_FILES['file']['tmp_name'];
$file = fopen($nameFile, "r");
$content = fread($file, filesize($nameFile));
$encoded_attach = chunk_split(base64_encode($content));
fclose($file);
}