protected static function detectIP()
	{
		// Normally the $_SERVER superglobal is set
		if (isset($_SERVER))
		{
			// Do we have an x-forwarded-for HTTP header (e.g. NginX)?
			if (self::$allowIpOverrides && array_key_exists('HTTP_X_FORWARDED_FOR', $_SERVER))
			{
				return $_SERVER['HTTP_X_FORWARDED_FOR'];
			}

			// Do we have a client-ip header (e.g. non-transparent proxy)?
			if (self::$allowIpOverrides && array_key_exists('HTTP_CLIENT_IP', $_SERVER))
			{
				return $_SERVER['HTTP_CLIENT_IP'];
			}

			// Normal, non-proxied server or server behind a transparent proxy
			return $_SERVER['REMOTE_ADDR'];
		}

		/*
		 * This part is executed on PHP running as CGI, or on SAPIs which do not set the $_SERVER superglobal
		 * If getenv() is disabled, you're screwed
		 */
		if (!\function_exists('getenv'))
		{
			return '';
		}

		// Do we have an x-forwarded-for HTTP header?
		if (self::$allowIpOverrides && getenv('HTTP_X_FORWARDED_FOR'))
		{
			return getenv('HTTP_X_FORWARDED_FOR');
		}

		// Do we have a client-ip header?
		if (self::$allowIpOverrides && getenv('HTTP_CLIENT_IP'))
		{
			return getenv('HTTP_CLIENT_IP');
		}

		// Normal, non-proxied server or server behind a transparent proxy
		if (getenv('REMOTE_ADDR'))
		{
			return getenv('REMOTE_ADDR');
		}

		// Catch-all case for broken servers, apparently
		return '';
	}