ksort Sort an array by key &reftitle.description; boolksort arrayarray intsort_flagsSORT_REGULAR Sorts an array by key, maintaining key to data correlations. This is useful mainly for associative arrays. &reftitle.parameters; array The input array. sort_flags You may modify the behavior of the sort using the optional parameter sort_flags, for details see sort. &reftitle.returnvalues; &return.success; &reftitle.examples; "lemon", "a"=>"orange", "b"=>"banana", "c"=>"apple"); ksort($fruits); foreach ($fruits as $key => $val) { echo "$key = $val\n"; } ?> ]]> &example.outputs; &reftitle.seealso; asort &seealso.array.sorting;