note 104988 added to function.usort

Here is an addition to the solution for sorting multidimensional arrays, which I wrote up nearly a month ago. Say you want to sort a multidimensional array by a key several layers down: $a[$key1][$key2][$key3][...][$keyN]; This "upgrade" should allow you to handle multiple "depths": <?php $keys = array($key1,$key2,$key3,...,$keyN); uasort($array, array(new cmp( $keys ), "cmp__") ); class cmp { var $key; function __construct($key) { $this->key = $key; } function cmp__($a,$b) { $key = $this->key; if ($this->dive($a,$key) == $this->dive($b,$key)) return 0; return (($this->dive($a,$key) > $this->dive($b,$key)) ? 1 : -1); } function dive($var,$keys) { if (count($keys) == 1) return $var[$keys[0]]; else return $this->dive($var[array_shift($keys)],$keys); } } ?> ---- Server IP: 69.147.83.197 Probable Submitter: 2.105.83.122 ---- Manual Page -- http://www.php.net/manual/en/function.usort.php Edit -- https://master.php.net/note/edit/104988 Del: integrated -- https://master.php.net/note/delete/104988/integrated Del: useless -- https://master.php.net/note/delete/104988/useless Del: bad code -- https://master.php.net/note/delete/104988/bad+code Del: spam -- https://master.php.net/note/delete/104988/spam Del: non-english -- https://master.php.net/note/delete/104988/non-english Del: in docs -- https://master.php.net/note/delete/104988/in+docs Del: other reasons-- https://master.php.net/note/delete/104988 Reject -- https://master.php.net/note/reject/104988 Search -- https://master.php.net/manage/user-notes.php