[TaLhA XIV]

PHP код:

if(PlayerInfo[i][Owned] == 1 && strcmp(pName,BizInfo[i][Owner]) != 0) return SendClientMessage(playerid,-1,"You aren't the owner of this Business!"); 


Just edit it as you want and this will check that if the player is the owner or not.This is an example from my house system.
((+rep if I helped thanks.;p))