为什么wp_send_json返回null

Objective: make the button "Add to favorites" and the page with the map of selected goods. My favorites post id stored in js-cookie array

liked = $.cookie("liked");
$.ajax({
    type: "GET",
    url: ajaxurl,
    data: {
        action : 'ids',
        id : liked
    },
    success: function (response) {
    console.log('AJAX response : ',response);
}

in functions.php

add_action( 'wp_ajax_ids', 'ids_function' );
add_action( 'wp_ajax_nopriv_ids', 'ids_function' );    

function ids_function() 
{
    $myArray = array($_REQUEST['id']); 
    wp_send_json( $myArray );

}

in the page with the map of selected goods i call finction ids_function() and page return null. But in console.log i see the need array. How to get it in my page?? TNX!

Not sure if this is what you are trying to accomplish but, you could rewrite that function to also work when called from PHP.

function ids_function ($is_ajax = true) 
{
    $myArray = array($_REQUEST['id']); 
    if ($is_ajax)
    {
        # NOTE: it die()-s here (after outputting the JSON data)
        wp_send_json( $myArray );
    }
    return $myArray;
}

Then you can call it from PHP like this:

$myarray = ids_function (false);

Also consider that PHP and Javascript runs at different times...