[GloomY]

PHP код:

new t = GetPlayerVehicleID(playerid), m = GetVehicleModel(t);//Explained earlier
    if(!IsTrailerAttachedToVehicle(m)) return SendClientMessage(playerid,-1, "You need a trailer to unload!");//This line checks wether the player has a trailer attached to their truck.
    if(GetPlayerTeam(playerid) == 1)
    {
        if(IsPlayerInAnyVehicle(playerid))
        {
            switch(truck_PlayerJob[playerid])
            {
                case 1:
                {
                    truck_PlayerJob[playerid] = -1;
                    TogglePlayerControllable(playerid, 0);
                    SetTimerEx("Trucker2", 15000, false, "i", playerid);
                    new loading[MAX_PLAYERS];
                    format(loading,sizeof(loading), "~y~Loading... ~g~Please wait");
                    TextDrawSetString(Work[playerid], loading);
                    
                }
                case 2, 3:
                {
                    truck_PlayerJob[playerid] = 3;
                    TogglePlayerControllable(playerid, 0);
                    SetTimerEx("Trucker3", 15000, false, "i", playerid);
                    new loading[MAX_PLAYERS];
                    format(loading,sizeof(loading), "~y~unLoading... ~g~Please wait");
                    TextDrawSetString(Work[playerid], loading);
                }
            }
            return 1;
        }
    } 


Try this.