[Wordpress] filter wordpress admin area

<?php
if (!function_exists('post_type_filters')) {
    function post_type_filters()
    {
        global $typenow;
        if ($typenow == 'plans' || $typenow == 'reviews' || $typenow == 'news') {
            $posts = get_posts(array('numberposts' => -1));
            echo '<select name="shopid">';
            echo '<option value="">All Shop</option>';
            foreach ($posts as $post) {
                echo '<option value="' . $post->ID . '">' . $post->post_title . ' </option>';
            }
            echo '</select>';
            wp_reset_postdata();
        }
    }
    add_action('restrict_manage_posts', 'post_type_filters');
}
if (!function_exists('get_filter_post_id')) {
    function get_filter_post_id($query)
    {
        global $typenow;
        global $pagenow;
        if ($pagenow == 'edit.php' && $typenow == 'plans' && isset($_GET['shopid'])) {
            $query->query_vars['meta_key'] = 'choise_shop';
            $query->query_vars['meta_value'] = (int)$_GET['shopid'];
        }
        if ($pagenow == 'edit.php' && $typenow == 'reviews' && isset($_GET['shopid'])) {
            $query->query_vars['meta_key'] = 'choise_shop_reviews';
            $query->query_vars['meta_value'] = (int)$_GET['shopid'];
        }
        if ($pagenow == 'edit.php' && $typenow == 'news' && isset($_GET['shopid'])) {
            $query->query_vars['meta_key'] = 'choise_shop_news';
            $query->query_vars['meta_value'] = (int)$_GET['shopid'];
        }
    }
    add_filter('parse_query', 'get_filter_post_id');
}