Do

#include <a_samp>
#include <dontfalloff>
new PlayerVehicle[MAX_PLAYERS], PlayerSeat[MAX_PLAYERS],
    Count[MAX_PLAYERS];

public OnFilterScriptInit()
{
/*  print("\n--------------------------------------");
    print(" Don't Fall Off from bikes");
    print("---------------------------------------");
    print(" You can't teleport out players from vehicle");
    print(" and you can't use RemovePlayerFromVehicle");
    print("--------------------------------------");
    print(" But you can teleport players with vehicles");
    print("--------------------------------------\n");*/
    print("\n\n\n\nDont Fall Off The Bikes loaded");
    return 1;
}

public OnPlayerExitVehicle(playerid, vehicleid)
{
    PlayerVehicle[playerid] = -1;
    Count[playerid]=0;
    return 1;
}

public OnPlayerStateChange(playerid, newstate, oldstate)
{
    if(newstate == PLAYER_STATE_DRIVER || newstate == PLAYER_STATE_PASSENGER)
    {
        PlayerVehicle[playerid] = GetPlayerVehicleID(playerid);
        PlayerSeat[playerid] = GetPlayerVehicleSeat(playerid);
    }
    if(oldstate == PLAYER_STATE_DRIVER)
    {
        if(PlayerVehicle[playerid] != -1)
        {
            if(Count[playerid]!=5)
            {
                PutPlayerInVehicle(playerid, PlayerVehicle[playerid], 0);
                Count[playerid]++;
            }
            if(Count[playerid]==5)
            {
                PlayerVehicle[playerid] = -1;
                Count[playerid]=0;
            }
        }
    }
    if(oldstate == PLAYER_STATE_PASSENGER)
    {
        if(PlayerVehicle[playerid] != -1)
        {
            PutPlayerInVehicle(playerid, PlayerVehicle[playerid], PlayerSeat[playerid]);
        }
    }
    return 1;
}

public OnPlayerCommandText(playerid, cmdtext[])
{
/*  if (strcmp("/removecar", cmdtext, true, 10) == 0)
    {
        PlayerVehicle[playerid] = -1;
        RemovePlayerFromVehicle(playerid);
        return 1;
    }*/
    return 0;
}

forward DontFallOff(playerid); public DontFallOff(playerid)
{
    PlayerVehicle[playerid] = -1;
    return 1;
}