if(strcmp(cmdtext, "/myteleport", true) == 0)
{
    if(GetPlayerState(playerid) == PLAYER_STATE_DRIVER) //They are driving a vehicle
    {
        SetVehiclePos(GetPlayerVehicleID(playerid), X, Y, Z);
    }
    else //They are on-foot or a passenger
    {
        SetPlayerPos(playerid, X, Y, Z);
    }
    return 1;
}

stock TeleportPlayerTo(playerid, interior, Float:x, Float:y, Float:z, Float:angle)
{
    SetPlayerInterior(playerid, interior);
    if(IsPlayerInAnyVehicle(playerid)){
    new vehicle = GetPlayerVehicleID(playerid);
    SetVehicleVirtualWorld(vehicle, vworld);
    LinkVehicleToInterior(vehicle, interior);
    SetVehiclePos(vehicle, x, y, z);
    SetVehicleZAngle(vehicle, angle);
    SetCameraBehindPlayer(playerid);}else{
    SetPlayerPos(playerid, x, y, z);
    SetPlayerFacingAngle(playerid, angle);
    SetCameraBehindPlayer(playerid);}
}