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	$item = explode("_", stripslashes($_REQUEST['item']));	$x = 0;	$_SESSION['level'] = 4;	if($x <= count($_SESSION['level'])) {		$i .= $_REQUEST['item'].'_';		}--------------//$_REQUEST['item'] = '1_1_1_1_1_1_1_1_1';$item = explode("_", $_REQUEST['item']);$_SESSION['level'] = 4;for( $i=0 $i < $_SESSION['level']; $i++ ) {   $i .= $item[$i]."_";}//this will leave you with 1_1_1_1_//this removes the trailing _$i = substr($i, 0, -1);