array('lumia800','lumia900','lumia1520'),apple => array('iphone4s','iphone5c','iphone6s'),msoft => array('surface1','surface2','surface3'));$arr2 = array(array('lumia800','lumia900','lumia1520'),array('iphone4s','iphone5c','iphone6s'),array('surface1','surface2','surface3'));echo ;foreach($arr2 as $key=>$val){echo ;foreach($val as $detail){echo .$detail. ;}echo
;}echo
;?>