Wp_UPDATE_POST()有哪些限制？

我在wp\\u posts表中有两个字段wp_update_post() 似乎无法改变。我正在尝试使用以下代码：

$echo $group_access;
$echo $tag_list;
$my_post = array(
      \'ID\'           => 12095, 
      \'post_title\'   => \'Test Title\',
      \'post_content\' => \'Test Content\',     
      \'group_access\' => $group_access,
      \'tag_list\'     => $tag_list,
  );
// Update the post into the database
$post_id = wp_update_post( $my_post, true );

if (is_wp_error($post_id)) {
    $errors = $post_id->get_error_messages();
    foreach ($errors as $error) {
        echo $error;
    }
}

The$group_access 和$tag_list 变量返回正确的值。这个post_title 和post_content 正确更新。group_access 和tag_list 不要更新，也没有错误。

当然，我已经检查了表格group_access 和tag_list 是正确的列标题。

我对它为什么不起作用感到困惑。是wp_update_post() 无法更改不属于默认WP安装的列？它是否可能是一种数据类型（例如，我应该传递一个数组或整数，但我传递的是一个字符串）？

class wpse_258786 { protected $postarr; public function __construct( $postarr ) { $this->postarr = $postarr; } public function insert_post_data( $data, $postarr ) { //* Make sure this is added each time before each post remove_action( \'wp_insert_post_data\', [ $this , \'insert_post_data\' ] , 10 ); if( $postarr !== $this->postarr ) { //* Format the $data to insert into table } return $data; } }

include_once( PATH_TO . \'class-wpse-258786.php\' ); ... $echo $group_access; $echo $tag_list; $my_post = array( \'ID\' => 12095, \'post_title\' => \'Test Title\', \'post_content\' => \'Test Content\', \'group_access\' => $group_access, \'tag_list\' => $tag_list, ); //* Filter the post data before inserting into database add_action( \'wp_insert_post_data\', [ new wpse_258786( $my_post ), \'insert_post_data\' ], 10, 2 ); // Update the post into the database $post_id = wp_update_post( $my_post, true );

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