ArrayIterator::uksort Sort by keys using a user-defined comparison function &reftitle.description; public boolArrayIterator::uksort callablecallback This method sorts the elements by keys using a user-supplied comparison function. ¬e.sort-unstable; &reftitle.parameters; callback &return.callbacksort; &callback.cmp; &reftitle.returnvalues; &return.true.always; &reftitle.seealso; ArrayIterator::asort ArrayIterator::ksort ArrayIterator::natcasesort ArrayIterator::natsort ArrayIterator::uksort uksort