[TODO: merge conflicts] Recursive XSS Filter

[videsignz]

I edited the XSS Filter to not only allow individual values but to also allow arrays and objects.

    public static function XSSFilter(&$value)
    {
        if (is_string($value)) {

            $value = htmlspecialchars($value, ENT_QUOTES, 'UTF-8');

        }elseif(is_array($value) || is_object($value)) {

            foreach ($value as $key => &$array_value) {

                self::XSSFilter($array_value);

            }           
        }
        return $value;
    }

This is extremely useful if you want to filter array results directly after a database call within a model.

Single Row Example:

    // If successful, clean & return data
    if ($query->rowCount() == 1) {
        $query = $query->fetch();
        return Filter::XSSFilter($query);
    }

Multiple Row Example:

    // If successful, clean & return data as array
    if ($query->rowCount() > 0) {
        $query = $query->fetchAll();
        return Filter::XSSFilter($query);
    }