[Niko_boy]

Alright as i prefer ZCMD here we go

pawn Код:

CMD:adminsay(playerid , params[])
{
   if(IsPlayerAdmin(playerid)
   {
//here goes all code
   new string[128],pName[MAX_PLAYER_NAME];
   if(isnull(params)) return SendClientMessage(playerid , -1 , "Add a message /adminsay <msg>");
   GetPlayerName(playerid,pName,sizeof(pName));
   format(string,sizeof(string),"%s: %s",pName,params);
   SendClientMessageToAll(0xFFFFFF, string);
//-------
   }else  SendClientMessage(playerid , -1 , "You Not RCON admin");
return 1;

}

it works like if playerid who using command is RCON admin the command will work otherwise error message