dcmd_setfaction(playerid, params[])
{
    if(PlayerInfo[playerid][pAdminLevel] < gCommands[SETFACTION])
    {
        new string[100];
        format(string, sizeof(string), "You must be administrator level %d to use that command!", gCommands[SETFACTION]);
        return SendClientMessage(playerid, COLOUR_ORANGE, string);
    }
    else if(!strlen(params))
    return SendClientMessage(playerid, COLOUR_ORANGE, "USAGE: /kill [id | name]");
    else
    {
	new id = (isNumeric(params)) ? strval(params) : GetPlayerId(params);
	if(IsPlayerConnected(id) && id != playerid)
	{
	}
	else
	    return SendClientMessage(playerid, COLOUR_ORANGE, "ERROR: You can not admin-kill yourself or a disconnected player.");
    }
}

//credits to wiki

dcmd_example(playerid, params[])
{
//now to make more then 1 params is simple, the easiest way is like this
new otherplayerid = params[0];//the id of the target player
new something = params[1];//variable for something i dont know its an example ;)
new text[250] = params[2];//string for player to type text etc.

//then later on you just use them like this
new str[128];format(str,sizeof(str),"player ID Selected %d, Something: %d, the text: %s",otherplayerid,something,text);
//and thats how you use them ;)
}

dcmd_example(playerid, params[])
{
//you dont have to add the new playerid, etc...

new str[128];format(str,sizeof(str),"player ID Selected %d, Something: %d, the text: %s",params[0],params[1],params[2]);
//and thats how you use them ;)
}

dcmd_command (playerid, params[])
{
if(Strlen(parmas[0])==0) return SendClinetMessage(playerid ,-1,"You need to enter the playerid");
if(Strlen(parmas[1])==0) return SendClinetMessage(playerid ,-1,"You need to enter a value");
}