如何按asc和desc顺序按字母顺序对数组进行排序？

Question

I have set of arrays which need to be sort array by ascending and descending order in php?

Array
(
    [0] => Array
        (
            [product_name] => Blips
            [product_url] => 
            [product_id] => 123
            [state] => GA

        )

    [1] => Array
        (
            [product_name] => Alpha               
            [product_id] => 586
            [state] => GA
            )
)

Answer 1

You can use usort and strnatcmp to achieve that:

usort($myArray, function($a, $b) {
    return strnatcmp($a['product_name'], $b['product_name']);
});

If you want it sorted in descending order then you simply reverse the array after sorting it:

$myArray = array_reverse($myArray);