[Zipfer247]

Try this. I didn't test it.

pawn Code:

public OnPlayerStateChange(playerid, newstate, oldstate){
    if(newstate == PLAYER_STATE_DRIVER){
        if(PlayerInfo[playerid][pDrivingLicense] == 0){
            SendClientMessage(playerid, -1, "You do not have a driving license, you decide to leave the vehicle!");
            RemovePlayerFromVehicle(playerid);
        }
    }
    return 1;
}