遍历 get_posts 以创建嵌套的多维数组和 JSON

问：

我对这个wp_query功能有疑问。我需要创建一个嵌套的JSON，如下所示：

{
    "country_zone A": [
        {
            "tarif_zone A": {
                "out": "0.0",
                "in": "0.2",
                "data": "1"
            },
            "tarif_zone B": {
                "out": "0.0",
                "in": "0.2",
                "data": "1"
            },
            " tarif_zoneC": {
                "out": "0.0",
                "in": "0.2",
                "data": "1"
            },
            "tarif_zone D": {
                "out": "0.0",
                "in": "0.2",
                "data": "1"
            }
        }
    ],
    " country_zone B": [
        {
            "tarif_zone A ": {
                "out": "0.0",
                "in": "0.2",
                "data": "1"
            },
            "tarif_zone B": {
                "out": "0.0",
                "in": "0.2",
                "data": "1"
            },
            "tarif_zone C": {
                "out": "0.0",
                "in": "0.2",
                "data": "1"
            },
            "tarif_zone D": {
                "out": "0.0",
                "in": "0.2",
                "data": "1"
            }
        }
    ],
    "country_zone C": [
        {
            " tarif_zone A": {
                "out": "0.0",
                "in": "0.2",
                "data": "1"
            },
            "tarif_zone B": {
                "out": "0.0",
                "in": "0.2",
                "data": "1"
            },
            "tarif_zone C": {
                "out": "0.0",
                "in": "0.2",
                "data": "1"
            },
            "tarif_zone D": {
                "out": "0.0",
                "in": "0.2",
                "data": "1"
            }
        }
    ]
}

我有与这些字段相对应的 ACF 字段，我需要这个 JSON 来检索 JS 前端中的数据。

这是我的php代码：

add_action('wp_ajax_country_search', 'country_search_callback');
add_action('wp_ajax_nopriv_country_search', 'country_search_callback');

function country_search_callback()
{
    header("Content-Type: application/json");

     $args_pays = array(
        "post_type" => 'pays',
        "posts_per_page" => 50,
    );

    $args_tarif = array(
        "post_type" => 'tarif',
        "posts_per_page" => 50,

    );

    $tarifs = get_posts($args_tarif);

    $countries = get_posts($args_pays);
    if ($countries);
    if ($tarifs) {
        foreach ($countries as $country) :
            setup_postdata($country);
            $country_names[] =
                get_the_title($country);
            $country_zones[] = get_field('pays_id_zone', $country);
        endforeach;
        foreach ($tarifs as $tarif) :
            setup_postdata($tarif);
            $tarif_zone[] =
                get_field('tarif_dans_id_zone', $tarif);
            $tarif_type[] = get_field('tarif_type', $tarif);
            $tarif_sens[] = get_field('tarif_sens', $tarif);
            $tarif_vers[] = get_field('tarif_vers_id_zone', $tarif);
            $tarif_in[] = get_field('tarif_de_id_zone', $tarif);

        endforeach;
        $premiere_cle[] = array_fill_keys($tarif_zone, $country_zones);
        $deuxieme_cle[] = array_fill_keys($country_zones, $tarif_type);
        $troisieme_cle[] = array_fill_keys($tarif_type, $tarif_sens);
        $quatrieme_cle[]  = array_fill_keys($tarif_sens, array($tarif_vers, $tarif_in));

    };

    echo json_encode($premiere_cle);
wp_die()
}

使用此代码，我获得了以下 JSON 对象：

[{"A":["D","E","B","C","B","B","A","A","Z"],"C":["D","E","B","C","B","B","A","A","Z"],"E":["D","E","B","C","B","B","A","A","Z"],"B":["D","E","B","C","B","B","A","A","Z"],"":["D","E","B","C","B","B","A","A","Z"]}]

如果您明白我的意思，我如何组合所有不同的数组，现在它们都有一个值，该值应该是另一个数组的键？

最后，我试图重新创建这样的东西：https://www.orange.be/fr/options-et-services/international-roaming/tarifs

所有帮助将不胜感激！谢谢！