[Shinja]

Try this

PHP Code:

CMD:loadcargo(playerid, params[])
{
    if(cargopicked[playerid] == 1)
    {
        for(new i; i < sizeof(meatcar); i++)
        {
            new vehicleid = meatcar[i];
            if(IsPlayerInRangeOfVehicle(playerid, meatcar[i], 4))
            {
                RemovePlayerAttachedObject(playerid, 0);
                SendClientMessage(playerid, COLOR_YELLOW, "You loaded the cargo into the van, now get inside and drive it.");
                SendNearbyMessage(playerid, 30.0, COLOR_PURPLE, "** %s places the bag of meat in the back of the van.", ReturnName(playerid, 0));
                ClearAnimations(playerid, 1);
                SetPlayerSpecialAction(playerid,SPECIAL_ACTION_NONE);
                loadedcargo[vehicleid]++;
                break;//got what you want, stop looping..
            }
            else
            {
                SendClientMessage(playerid, COLOR_GREY, "You are not behind a van.");
            }
        }
    }
    return 1;
}