uksort
Sort an array by keys using a user-defined comparison function
&reftitle.description;
booluksort
arrayarray
callablecallback
Sorts array in place by keys using a
user-supplied comparison function to determine the order.
¬e.sort-unstable;
¬e.reset-index;
&reftitle.parameters;
array
The input array.
callback
&return.callbacksort;
&callback.cmp;
&reftitle.returnvalues;
&return.true.always;
&reftitle.changelog;
&Version;
&Description;
&array.changelog.by-ref;
&reftitle.examples;
<function>uksort</function> example
1, "the Earth" => 2, "an apple" => 3, "a banana" => 4);
uksort($a, "cmp");
foreach ($a as $key => $value) {
echo "$key: $value\n";
}
?>
]]>
&example.outputs;
&reftitle.seealso;
usort
uasort
&seealso.array.sorting;