note 104649 added to function.usort

Sorting a multidimensional array by a subkey seem to be one of the bigger challenges when using usort. At least if one want the key to be dynamic. For anyone interested this code seemed to work rather well for me: <?php usort($array,array(new cmp($key), "cmp__")); class cmp { var $key; function __construct($key) { $this->key = $key; } function cmp__($a,$b) { $key = $this->key; if ($a[$key] == $b[$key]) return 0; return (($a[$key] > $b[$key]) ? 1 : -1); } } ?> ---- Server IP: 195.184.96.15 Probable Submitter: 2.105.83.122 ---- Manual Page -- http://www.php.net/manual/en/function.usort.php Edit -- https://master.php.net/note/edit/104649 Del: integrated -- https://master.php.net/note/delete/104649/integrated Del: useless -- https://master.php.net/note/delete/104649/useless Del: bad code -- https://master.php.net/note/delete/104649/bad+code Del: spam -- https://master.php.net/note/delete/104649/spam Del: non-english -- https://master.php.net/note/delete/104649/non-english Del: in docs -- https://master.php.net/note/delete/104649/in+docs Del: other reasons-- https://master.php.net/note/delete/104649 Reject -- https://master.php.net/note/reject/104649 Search -- https://master.php.net/manage/user-notes.php