I want to sort array by two fields. I mean to say I have an array like :-

Array
 (
[0] => Array
    (
        [name] => abc
        [url] => http://127.0.0.1/abc/img1.png
        [count] => 69
        [img] => accessoire-sets_1.jpg
    )

[1] => Array
    (
        [name] => abc2
        [url] => http://127.0.0.1/abc/img12.png
        [count] => 73
        [img] => 
    )

[2] => Array
    (
        [name] => abc45
        [url] => http://127.0.0.1/abc/img122.png
        [count] => 15
        [img] => tomahawk-kopen_1.png
    )

[3] => Array
    (
        [name] => zyz
        [url] => http://127.0.0.1/abc/img22.png
        [count] => 168
        [img] => 
    )

[4] => Array
    (
        [name] => lmn
        [url] => http://127.0.0.1/abc/img1222.png
        [count] => 10
        [img] => 
    )

[5] => Array
    (
        [name] => qqq
        [url] => http://127.0.0.1/abc/img1222.png
        [count] => 70
        [img] => 
    )

[6] => Array
    (
        [name] => dsa
        [url] => http://127.0.0.1/abc/img1112.png
        [count] => 43
        [img] => 
    )

[7] => Array
    (
        [name] => wer
        [url] => http://127.0.0.1/abc/img172.png
        [count] => 228
        [img] => 
    )

[8] => Array
    (
        [name] => hhh
        [url] => http://127.0.0.1/abc/img126.png
        [count] => 36
        [img] => 
    )

[9] => Array
    (
        [name] => rrrt
        [url] => http://127.0.0.1/abc/img12.png
        [count] => 51
        [img] => 
    )

[10] => Array
    (
        [name] => yyy
        [url] => http://127.0.0.1/abc/img12.png
        [count] => 22
        [img] => 
    )

[11] => Array
    (
        [name] => cxz
        [url] => http://127.0.0.1/abc/img12.png
        [count] => 41
        [img] => 
    )

[12] => Array
    (
        [name] => tre
        [url] => http://127.0.0.1/abc/img12.png
        [count] => 32
        [img] => 
    )

[13] => Array
    (
        [name] => fds
        [url] => http://127.0.0.1/abc/img12.png
        [count] => 10
        [img] => 
    )

    )

array WITHOUT images (field "img" )should always be placed underneath array WITH images. After this there will be sorted on the amount of products (field count) in the array.

Means I have to show sort array first on the basis of img then count.

I am using

usort( $childLinkCats, 'sortempty' );`

function sortempty( $a, $b ) {
    return empty( $a['img'] );
}

it will show array with image value above the one who contains null value.

and to sort through count Im using

usort($childLinkCats, "_sortByCount");
function _sortByCount($a, $b) {
    return strnatcmp($a['count'], $b['count']);
}

It will short by count

But I am facing problem that only 1 working is working at a time, but I have to use both, please help me.