[Misiur]

There isn't thing as OnVehicleBeingEnteredByPlayer.

pawn Код:

public OnPlayerStateChange(playerid, newstate, oldstate) {
    if(newstate & PLAYER_STATE_DRIVER) {
        new msg[64];
        format(msg, sizeof msg, "You (%d) are in car %d", playerid, GetPlayerVehicleID(playerid));
        SendClientMessage(playerid, -1, msg);
    }
    return 1;
}