<?php

class SafeFileUpload extends TFileUpload {

    use MimeTypeCheckForFileUpload;

}

trait MimeTypeCheckForFileUpload {

    protected $_isSecure = TRUE;

    public function getIsSecure() {
        return $this->_isSecure;
    }

    public function setIsSecure($bool) {
        $this->_isSecure = $bool;
    }

    public function getFileType() {
        if ($this->getIsSecure()) {
            $fileInfo = new finfo(FILEINFO_MIME_TYPE);
            return $fileInfo->file($this->getLocalName());
        }
        return parent::getFileType();
    }

    public function getFileSize() {
        if ($this->getIsSecure()) {
            return filesize($this->getLocalName());
        }
        return parent::getFileSize();
    }

}

?>