mysql - How to bundle PHP rows into collapsible form? (Elemental access to multidimensional array using next()) -

i've got this:

while( $row = $result->fetch_assoc() ) {         switch ($row["card_id"]) {             case 0:                 include 'card_0.php';                 break;             case 1:                 include 'card_1.php';                 break;             case 2:                 include 'card_2.php';                 break;             case 3:                 include 'card_3.php';                 break;         } } 

in case card_id 1 want detect whether next row's card_id same, , whether next next row's card_id same , on until have them , put associated field elements unordered list---as bootstrap collapsible object. whole idea here don't want card_1 events stacked right on top of each other. want them collapsible. so, since events ordered date they'll this:

card_0 card_1 card_1 card_1 card_3 card_2 card_2 card_1 card_1 card_1 card_1 

i want instead:

card_0 card_1<--clickable collapsible card_3 card_2 card_2 card_1<--clickable collapsible 

i thinking this:

while( $i == true ) {     while( current($row["card_id"]) == next($row["card_id"]) ) {         $pea_pod[] = $row["field"];         }     $i = false; } 

would work?

i've done before, neat trick used use card item in arrays id ie:

array[card_1][$i] 

then count array[card_1]

edit:

not $i use default:

array[card_1][]