Sorting a Multidimensional Array by 1 of his value

Question

first of all, I did check and try thoses links:

Sort Multi-dimensional Array by Value

Sort Multi-dimensional Array by Value

Sort php multidimensional array by sub-value

http://www.paulund.co.uk/sort-multi-dimensional-array-value

http://php.net/manual/fr/function.array-multisort.php.

So there is my problem. I need to sort an array by value of a key into a multi-dimensional array.

This is the structure if I do : print($myarray)

Array ( 
    [afctname1] => Array ( 
    [active] => 1 
    [icons] => Array ( 
        [0] => Array ( 
            [permalink] => afctname1 
            [ordering] => 2 
        ) 
     ) 
 )
 Array ( 
    [afctname2] => Array ( 
    [active] => 1 
    [icons] => Array ( 
        [0] => Array ( 
            [permalink] => afctname2 
            [ordering] => 0 
        ) 
     ) 
 )
 Array ( 
    [afctname3] => Array ( 
    [active] => 1 
    [icons] => Array ( 
        [0] => Array ( 
            [permalink] => afctname3 
            [ordering] => 1 
        ) 
     ) 
 )

So all that I want is to sort the array by the value in the key "ordering".

Can some body give me a hint or help me with a demo or something? Thanks.

Answer 1

function cmp($a, $b)
{
    return $a['icons'][0]['ordering'] - $b['icons'][0]['ordering'];
}

usort($theArray, "cmp");