foreach ($data as $key => $value)
        {
            /* Secure that variables are valid for php */
            if (! preg_match('/[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*/ims', $key) )
                continue;

            /* Add a new line to the template code */
            $template_code .=
                /* Write varaible name */
                '$' . $key . ' = ' . $this->phpize_var($value, true) . ';' . "\n";

        }