如何基於php中的鍵對關聯數組進行排序

Question

我正在構建具有自定義排序功能的嵌套菜單。 我被困在對每個菜單的子菜單項進行排序的過程中。 如何對用戶定義順序的關於，服務等子菜單項進行排序？ 任何幫助將不勝感激。

Array
(
    [About] => Array
        (
            [0] => Array
                (
                    [0] => About us
                    [1] => about.php
                )
            [5] => Array
                (
                    [0] => Who we are
                    [1] => who-we-are.php
                )

        )

    [Services] => Array
        (
            [5] => Array
                (
                    [0] => Web Design
                    [1] => web-design.php
                )

            [10] => Array
                (
                    [0] => Web development
                    [1] => web-development.php
                )

            [15] => Array
                (
                    [0] => SEO
                    [1] => seo.php
                )

        )
)

Answer 1

我們將對每個子菜單數組（例如關於我們，服務）分別進行排序。 但是，如果我們添加一個外循環，我們可以立即對其進行排序

foreach ($subMenuArray as $key => $row) 
{
    $innerArray = $row;        // This is the array that holds the menu items 
    $value = $row[0];          // That is the word About us, Who we are
    // Here we build an array that holds the actual values we want to sort.
    $sortingReference[$key] = $value;
}

// Using array_multisort we are sorting our main array 
// referencing to the array we built above
// Sort the subMenuArray with menu items descending
array_multisort($sortingReference, SORT_DESC, $subMenuArray);