order/reorder pull out data from arrays

I have an array that i would like to sort and reorder based on a simple critera. I already order the data but I would like to break the data now into sections by customer id, so one customer has 5 things and another customer has one. How can I do that with an array. $data = orders($id,$status); $c = count($data); for($i=0; $i<$c; $i++) { $orderid = $data[$i]['orderid']; $customerid = $data[$i]['customerid']; $name = $data[$i]['name']; print $orderid.' - '.$customerid.' - '.$name.'<br>'; } What it is currently is all the orders are ordered by the customer number, however I would like to group it a little nicer on the output. Current: 1234 - blah blah blah - Y - 3, 01234 1235 - blah blah blah - N - 6, 01234 1236 - blah blah blah - N - 6, 01234 1237 - blah blah blah - Y - 6, 11256 1238 - blah blah blah - N - 6, 22589 1239 - blah blah blah - N - 6, 22589 1240 - blah blah blah - Y - 6, 22589 1241 - blah blah blah - N - 6, 22589 Would like: 01234 - The Customer 1 1234 - blah blah blah - Y - 3 1235 - blah blah blah - N - 6 1236 - blah blah blah - N - 6 11256 - The Customer 2 1237 - blah blah blah - Y - 6 22589 - The Customer 3 1238 - blah blah blah - N - 6 1239 - blah blah blah - N - 6 1240 - blah blah blah - Y - 6 1241 - blah blah blah - N - 6 Anyway I can do that?