Re: Sorting an array of arrays....

On Thu, 2002-02-14 at 08:26, Fifield, Mike wrote: > What I am trying to do is sort a array of arrays but I want to sort by one > of the pieces of data stored in the arrays inside the array. For example; > $data[blue] = array("name", "age", "time", "3"); > $data[green] = array("name", "age", "time", "7"); > $data[red] = array("name", "age", "time", "6"); > $data[yellow] = array("name", "age", "time", "2"); > $data[white] = array("name", "age", "time", "1"); > $data[black] = array("name", "age", "time", "9"); > > I want to be able to sort this array of arrays by the very last element, the > numbers. <?php error_reporting(E_ALL); $data = array(); $data['blue'] = array("name", "age", "time", "3"); $data['green'] = array("name", "age", "time", "7"); $data['red'] = array("name", "age", "time", "6"); $data['yellow'] = array("name", "age", "time", "2"); $data['white'] = array("name", "age", "time", "1"); $data['black'] = array("name", "age", "time", "9"); $data['spooge'] = array(); function cmp($a, $b) { /* Bounds checking. To put any empty arrays at the * end instead of the beginning, swap -1 and 1 in the * next two lines. */ if (empty($a) && !empty($b)) return -1; if (empty($b) && !empty($a)) return 1; if (empty($a) && empty($b)) return 0; return (int) ($a[count($a) - 1] - $b[count($b) - 1]); } uasort($data, 'cmp'); print_r($data); ?> Hope this helps, Torben > Mike Fifield > Charles Schwab & Co, Inc. > WARNING: All e-mail sent to or from this address will be received by the > Charles Schwab corporate e-mail system and is subject to archival and review > by someone other than the recipient. -- Torben Wilson <torben@php.net> http://www.thebuttlesschaps.com http://www.hybrid17.com http://www.inflatableeye.com +1.604.709.0506