note 64034 modified in function.usort by danbrown

For using usort inside a method in an object, where the callback sort method is in the same object, this works: <?php usort($arr_to_sort, array($this, "sort_terms_by_criteria")); ?> If you wish to keep elements in their original or reverse order if they are the same length, just don't return zero for items that compare the same. Return a 1 or -1, as appropriate. --was-- For using usort inside a method in an object, where the callback sort method is in the same object, this works: usort($arr_to_sort, array($this, "sort_terms_by_criteria")); If you wish to keep elements in their original or reverse order if they are the same length, just don't return zero for items that compare the same. Return a 1 or -1, as appropriate. http://php.net/manual/en/function.usort.php