NukeViet\Core\Request::security_get PHP Method

    private function security_get($value, $decode = false)
    {
        if (is_array($value)) {
            $keys = array_keys($value);
            foreach ($keys as $key) {
                $value[$key] = $this->security_get($value[$key], $decode);
            }
        } else {
            if (!empty($value) and !is_numeric($value)) {
                if ($decode == true) {
                    $value = urldecode($value);
                }
                $value = str_replace(array("\t", "\r", "\n", "../"), "", $value);
                $value = $this->unhtmlentities($value);
                unset($matches);
                preg_match_all('/<!\\[cdata\\[(.*?)\\]\\]>/is', $value, $matches);
                $value = str_replace($matches[0], $matches[1], $value);
                $value = strip_tags($value);
                $value = preg_replace('#(' . implode('|', $this->disablecomannds) . ')(\\s*)\\((.*?)\\)#si', "", $value);
                $value = str_replace(array("'", '"', '<', '>'), array("&#039;", "&quot;", "&lt;", "&gt;"), $value);
                $value = trim($value);
            }
        }
        return $value;
    }