template-functions-get-list-screens.php

<?php

/**
 * Fetch all list screens for a particular list table.
 */
function example_loaded_ac_get_list_screens()
{
    /**
     * @see https://docs.admincolumns.com/article/66-how-to-find-the-list-screen-id
     * The "List Screen Key" can be found by opening the screen options in the top-right corner of the
     * admin columns settings page. Enable the "List screen Key" by clicking the checkbox next to it.
     * The list screen Key will now be visible in the right sidebar.
     */
    $table_id = "<TABLE ID GOES HERE>"; // e.g. page, post, wp-users, wp-comments, wp-media, wp-taxonomy_category etc.

    $list_screens = ac_get_list_screens($table_id);
}

add_action('wp_loaded', 'example_loaded_ac_get_list_screens');

/**
 * Example usage of ac_get_list_screens() function.
 * @uses AC\Column
 * @uses AC\ListScreen
 */
function example_ac_get_list_screens()
{
    $list_screens = ac_get_list_screens('page');

    foreach ($list_screens as $list_screen) {
        /**
         * @var $list_screen AC\ListScreen
         */
        echo $list_screen->get_label(); // e.g. 'Posts', 'Users', 'Comments'
        echo $list_screen->get_table_id(); // e.g. 'post', 'page', 'my-custom-post-type', 'wp-users', 'wp-comments'
        echo $list_screen->get_meta_type(); // e.g. 'post', 'user' or 'comment
        echo $list_screen->get_post_type(); // e.g. 'post', 'page' (if applicable)
        echo $list_screen->get_title(); // USer defined label e.g. 'My list view', 'Another list view'

        $columns = $list_screen->get_columns(); // array of column objects

        foreach ($columns as $column) {
            /**
             * @var $column AC\Column
             */
            echo $column->get_type(); // e.g. 'column-title', 'column-meta'
            echo $column->get_label(); // e.g. 'Title', 'Author', 'Date'

            /**
             * @var AC\Column\Context $context
             */
            echo $context->get_label(); // User defined label e.g. 'My Column Label'
            echo $context->all(); // All stored column settings. e.g. 'width', 'label', 'image_size' etc.
        }
    }
}

add_action('wp_loaded', 'example_ac_get_list_screens');