hi there , i am stuck with this problem and need some helpful pointers (so please be patient) , i have the following nodes :
array( 'L1' => array ('L2' , 'L7' , 'L8') ,
'L2' => array( 'L1' , 'L8' , 'L7' ) ,
'L3' =>array( 'L4' , 'L5' , 'L7' ) ,
'L4' => array( 'L3' ...