ArrayObject::ksort

Sort the entries by key

&reftitle.description; public `void` `ArrayObject::ksort`

Sorts the entries by key, maintaining key to entry correlations. This is useful mainly for associative arrays.

&reftitle.parameters; &no.function.parameters;
&reftitle.returnvalues;

&return.void;

&reftitle.examples;

### `ArrayObject::ksort` example

    <?php
    $fruits = array("d" => "lemon", "a" => "orange", "b" => "banana", "c" => "apple");
    $fruitArrayObject = new ArrayObject($fruits);
    $fruitArrayObject->ksort();

    foreach ($fruitArrayObject as $key => $val) {
        echo "$key = $val\n";
    }
     ?>

&example.outputs;

    a = orange
    b = banana
    c = apple
    d = lemon

&reftitle.seealso;

- `ArrayObject::asort`
- `ArrayObject::natsort`
- `ArrayObject::natcasesort`
- `ArrayObject::uasort`
- `ArrayObject::uksort`