[xMCx]

PHP код:

public OnPlayerCommandText(playerid, cmdtext[])
{
if(!strcmp(cmdtext, "/enter", true)){
        if(IsPlayerInRangeOfPoint(playerid, 13.0, x,y,z)){//the place that you want the player be to /enter
            SetPlayerInterior(playerid,interiorid);//get the interior http://weedarr.wikidot.com/interiornl67f...8.20803870
            SetPlayerPos(playerid,y,x,z);//interior pos http://weedarr.wikidot.com/interiornl67f...8.20803870
            GameTextForPlayer(playerid,"Welcome to the Interior!",4000,6);//change interior to anything else
            return 1;
        }
    }
    if(!strcmp(cmdtext, "/exit", true)){
        if(IsPlayerInRangeOfPoint(playerid, 15.0, x,y,z)){//the place you want the player type /enter from
            SetPlayerInterior(playerid,0);//always 0
            SetPlayerPos(playerid,x,y,z);//the original place that he typed /enter from
            GameTextForPlayer(playerid,"you left the interior !",4000,6);
            return 1;
        }
    }
     return 0;
} 


+rep if it helped and PM me to tell how you to add markers