[Lordzy]

Try this

pawn Код:

public OnPlayerStateChange(playerid, newstate, oldstate)
{
    if(oldstate == PLAYER_STATE_ONFOOT && newstate == PLAYER_STATE_DRIVER) // Player entered a vehicle as a driver
    {
        new vehicleid = GetPlayerVehicleID(playerid);
      //message here
    }
    return 1;
}