我正在使用post\\u not\\u in从查询中删除页面，但它忽略了超过2项的内容

我的代码：

$selected_check = array();
  $checks = new WP_Query( \'post_type=page&orderby=menu_order&order=ASC&posts_per_page=-1\');
  while($checks->have_posts()){
   $checks->the_post();
   global $post;
   $this_check = get_post_meta($post->ID, \'_cmb_hide_home\', true);
   if($this_check == \'on\'){
    $selected_check[] = $post->ID;
   }
  } 
  wp_reset_postdata();

  $new_check = implode(", ", $selected_check);

  $query1 = new WP_Query(array(
  \'post_type\' => \'page\',
  \'orderby\' => \'menu_order\',
  \'order\' => \'ASC\',
  \'posts_per_page\' => \'-1\',
  \'post__not_in\' => array($new_check)
 ));

我的代码中是否缺少一些东西？