ArrayObject::uksort
Sort the entries by keys using a user-defined comparison function
&reftitle.description;
public trueArrayObject::uksort
callablecallback
This function sorts the keys of the entries using a user-supplied
comparison function. The key to entry correlations will be maintained.
¬e.sort-unstable;
&reftitle.parameters;
callback
&sort.callback.description;
&reftitle.returnvalues;
&return.true.always;
&reftitle.changelog;
&Version;
&Description;
&return.type.true;
&reftitle.examples;
<function>ArrayObject::uksort</function> example
1, "the Earth" => 2, "an apple" => 3, "a banana" => 4);
$arrayObject = new ArrayObject($array);
$arrayObject->uksort('cmp');
foreach ($arrayObject as $key => $value) {
echo "$key: $value\n";
}
?>
]]>
&example.outputs;
&reftitle.seealso;
ArrayObject::asort
ArrayObject::ksort
ArrayObject::natsort
ArrayObject::natcasesort
ArrayObject::uasort
uksort