[Nuke547]

This is the command. It only shows that it is locked for you, but not anybody else.

PHP Code:

command(lock, playerid, params[])
{
    new string[256];
    if(Player[playerid][PlayerCarModel] > 0 && IsPlayerInRangeOfVehicle(playerid, Player[playerid][CarLinkID], 4))
    {
           if(Player[playerid][CarLinkID] > 0)
           {
               if(Player[playerid][LockedCar] == 0)
               {
                   Player[playerid][LockedCar] = 1;
                   format(string, sizeof(string), "* %s takes out their keys and locks their car.", GetName(playerid));
                   NearByMessage(playerid, NICESKY, string);
                for(new i = 0; i < MAX_PLAYERS; i++)
                {
                    if(i == playerid)
                    {
                        SetVehicleParamsForPlayer(Player[playerid][CarLinkID], i, 0, 1);
                    }
                }
                return 1;
            }
            else
            {
                format(string, sizeof(string), "* %s takes out their keys and unlocks their car.", GetName(playerid));
                   NearByMessage(playerid, NICESKY, string);
                Player[playerid][LockedCar] = 0;
                for(new i = 0; i < MAX_PLAYERS; i++)
                {
                    SetVehicleParamsForPlayer(Player[playerid][CarLinkID], i, 0, 0);
                }
                return 1;
            }
        }
    }
} 


[mineralo]

it should work, you maybe forgot to write stuff OnPlayerEnterVehicle
write something like this:

pawn Code:

public OnPlayerEnterVehicle(playerid, vehicleid, ispassenger)
{
    if(ispassenger == 0)
    {
if locked 
{
GetPlayerPos(playerid,Float:LocX,Float:LocY,Float:LocZ);
            SetPlayerPos(playerid,Float:LocX,Float:LocY,Float:LocZ);
            SendClientMessage(playerid,COLOR_GREY,"( ! ) This vehicle is locked by the owner !");
}
}
}return 1;
}