Online PHP editor | output for Oj5kX

<?php $data[] = array('volume' => 67, 'edition' => 6); $data[] = array('volume' => 86, 'edition' => 5); $data[] = array('volume' => 85, 'edition' => 4); $data[] = array('volume' => 98, 'edition' => 3); $data[] = array('volume' => 86, 'edition' => 2); $data[] = array('volume' => 67, 'edition' => 1); // Obtain a list of columns foreach ($data as $key => $row) { $volume[$key] = $row['volume']; $edition[$key] = $row['edition']; } // Sort the data with volume descending, edition ascending // Add $data as the last parameter, to sort by the common key array_multisort($volume, SORT_DESC, $edition, SORT_ASC, $data); echo '<pre>'; print_r($volume); ?>