class beg under folder scrs on folder one------------------class beg { function setinst($instance){ $this->instance = $instance; } function setusr($user){ $this->user = $user; } } file on folder one------------------include_once 'scrs/beg.class.php';$beg = new beg; $beg->setinst("localhost"); file on folder two------------------if(class_exists("beg")){ $beg2 = new beg; $beg2->setinst("localhost"); }else{ require_once("../one/scrs/beg.class.php"); }// jst used this if to see if class exists