[AfiqIqbal]

If you want to remove a gta sa game object (not server sided object), you have to put RemoveBuildingForPlayer
under OnPlayerConnect, everytime a player connected to your server, the object will be removed for him.

Ex :

PHP Code:

public OnPlayerConnect(playerid)
{
     RemoveBuildingForPlayer(playerid, modelid, Float:fX, Float:fY, Float:fZ, Float:fRadius)
     return 1;
} 


You don't have to use loop, if you use it that way

EDIT : Are you making a command to destroy a game object?