Naturally sort a flat array without preserving original keys

Question

Is there any way for natsort() to also change the indexes?

I.e.

$array = array('IMG0.png', 'img12.png', 'img10.png', 'img2.png', 'img1.png', 'IMG3.png');
natsort($array);

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

But I want:

$array = array('IMG0.png', 'img12.png', 'img10.png', 'img2.png', 'img1.png', 'IMG3.png');
natsort($array);

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

Answer 1

array_values will effectively reindex any array passed to it with sequential integer keys. So you just need to do:

natsort($array);
$array = array_values($array);

Answer 2

Simply use sort() with its natural sorting flag. This way you don't need to bother calling array_values() to re-index.

Code: (Demo)

sort($array, SORT_NATURAL);
var_export($array);

Answer 3

Just use array_values to get the values of the array and break the key-value association:

<?php

$tarray = array('IMG0.png', 'img12.png', 'img10.png', 'img2.png', 'img1.png', 'IMG3.png');
natsort($tarray);
$tarray = array_values($tarray);

?>

So:

<?php

$tarray = array('IMG0.png', 'img12.png', 'img10.png', 'img2.png', 'img1.png', 'IMG3.png');
print_r($tarray);
natsort($tarray);
$tarray = array_values($tarray);
print_r($tarray);

?>

yields:

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

See comment on natsort.