SimpleMachines / SMF2.1

			if (!isset($temp[$k]))

				$query_string .= urlencode($k) . '=' . urlencode($v) . ';';

			// If it changed, put it out there, but with an ampersand.

			elseif ($temp[$k] != $get[$k])

				$query_string .= urlencode($k) . '=' . urlencode($v) . '&';

		}

	}

	else

				$query_string .= urlencode($k) . '=' . urlencode($v) . '&';

		}

	}

	else

	{

		// Add up all the data from $_GET into get_data.

		foreach ($get as $k => $v)

			$query_string .= urlencode($k) . '=' . urlencode($v) . ';';

	}

	$query_string = substr($query_string, 0, -1);

	return $query_string;