note 36711 deleted from function.array-multisort by aidan

Note Submitter: siivv at siivv dot com ---- this post expounds on that by adriano_allora at mac dot com say u have an array like this: $array = array("page1" => array("hits" => 1, "bytes" => 2), "page2" => array("hits" => 2, "bytes" => 30)) and say u want to sort it based on hits, so that you can see which page had the most hits normally this could be accomplished with uksort and a compare function, but since wrapping a compare function into a class is a problem in itself... i came up with this function, that can used as a method within the class: <?php function matrixSort($matrix,$sortKey) { foreach ($this->{$matrix} as $key => $subMatrix) $tmpArray[$key] = $subMatrix[$sortKey]; arsort($tmpArray); $this->{$matrix} = array_merge($tmpArray,$this->{$matrix}); } ?> (and a version not necessarily wrapped into a class) function matrixSort(&$matrix,$sortKey) { foreach ($matrix as $key => $subMatrix) $tmpArray[$key] = $subMatrix[$sortKey]; arsort($tmpArray); return array_merge($tmpArray,$matrix); } this returns the same matrix form as above, but with the key "page2" now as the first element based on the sort this solved the simple problem i was having which dissallowed me from making this process reusable within a class framework. without this i would have had to create a function, by itself, outside my class... which i considered very clunky coding