Mine

	if (strcmp("/setweather", cmdtext, true, 10) == 0)
	{
		new weatherid;
		new tmp[256];
		tmp = strtok(cmdtext, idx);

		if(!strlen(tmp))
		{ //if there is no params
			SendClientMessage(playerid,WHITE,"USAGE: /setweather <id>");
		}

		else { //if there are any params! :)

					weatherid = strval(tmp);
					SetWeather(weatherid);
					SendClientMessage(playerid, YELLOW, "Weather Set.");
			}
	    return 1;
	}