note 99349 added to function.uasort

Using usort and strcomp together to order an array by one of its keys has an odd effect: it returns my array with fewer items in it than I put in. The array in my case contains a list of tasks, and I want to order the rows in the array by the field 'displayorder', which is a number but which I want to be sorted in alphabetical manner. function treeSort($a, $b) { return strcmp(strval($a['displayOrder']), strval($b['displayOrder'])); } usort($tree, "treeSort"); There are nine rows, but I only get six of them back. Those six are nicely sorted, by the way. ---- Server IP: 69.147.83.197 Probable Submitter: 77.251.206.203 ---- Manual Page -- http://www.php.net/manual/en/function.uasort.php Edit -- https://master.php.net/note/edit/99349 Del: integrated -- https://master.php.net/note/delete/99349/integrated Del: useless -- https://master.php.net/note/delete/99349/useless Del: bad code -- https://master.php.net/note/delete/99349/bad+code Del: spam -- https://master.php.net/note/delete/99349/spam Del: non-english -- https://master.php.net/note/delete/99349/non-english Del: in docs -- https://master.php.net/note/delete/99349/in+docs Del: other reasons-- https://master.php.net/note/delete/99349 Reject -- https://master.php.net/note/reject/99349 Search -- https://master.php.net/manage/user-notes.php