natcasesort

Sort an array using a case insensitive "natural order" algorithm

&reftitle.description; `bool` `natcasesort` `array` `array`

`natcasesort` is a case insensitive version of `natsort`.

This function implements a sort algorithm that orders alphanumeric strings in the way a human being would while maintaining key/value associations. This is described as a "natural ordering".

&reftitle.parameters;

`array`

- The input array.

&reftitle.returnvalues;

&return.success;

&reftitle.examples;

### `natcasesort` example

    <?php
    $array1 = $array2 = array('IMG0.png', 'img12.png', 'img10.png', 'img2.png', 'img1.png', 'IMG3.png');

    sort($array1);
    echo "Standard sorting\n";
    print_r($array1);

    natcasesort($array2);
    echo "\nNatural order sorting (case-insensitive)\n";
    print_r($array2);
    ?>

&example.outputs;

    Standard sorting
    Array
    (
        [0] => IMG0.png
        [1] => IMG3.png
        [2] => img1.png
        [3] => img10.png
        [4] => img12.png
        [5] => img2.png
    )

    Natural order sorting (case-insensitive)
    Array
    (
        [0] => IMG0.png
        [4] => img1.png
        [3] => img2.png
        [5] => IMG3.png
        [2] => img10.png
        [1] => img12.png
    )

For more information see: Martin Pool's Natural Order String Comparison page.

&reftitle.seealso;

- `natsort`
- &seealso.array.sorting;
- `strnatcmp`
- `strnatcasecmp`