[LuxurioN™]

Try:

pawn Код:

SetPlayerInterior(playerid,GetPlayerInterior(otherplayer));
SetPlayerVirtualWorld(playerid,GetPlayerVirtualWorld(otherplayer));

pawn Код:

SetVehicleVirtualWorld(GetPlayerVehicleID(playerid),GetPlayerVirtualWorld(otherplayer));

Because:

Playerid = is you.

Otherplayer = is player to be teleported.

You can not use 'playerid' for you and the other player.
Or do you teleport yourself to yourself ... your own virtual world? 0o

pawn Код:

tmp = strtok(cmdtext, idx);
new otherplayer = strval(tmp);
if(!strlen(tmp)) return SendClientMessage(playerid, COLOR_WHITE, "Utilize: /goto (playerid)");
if(!IsPlayerConnected(otherplayer)) return SendClientMessage(playerid, COLOR_WHITE, "Invalid player ID!.");

Note: I not tested it!