[ThatThoseTheThy]

PHP код:

CMD:derby(playerid,params[])
{
for(new x = 0; x < 6; x++)
{
SetPlayerVirtualWorld(playerid,23);
if(DerbyVehicle[x][occupied]) continue;
PutPlayerInVehicle(playerid, DerbyVehicle[x][id], 0);
DerbyVehicle[x][occupied] = true;
break;
}
return 1;
} 


try this, you neeeded to define x before you use it. That's why you have to type twice.