pre_delete_post 钩子过滤器是否为立柱deletion 应该发生。因此回调函数必须返回布尔值：true - 是否继续删除，false - 如果没有。

pre_trash_post 钩子过滤器是否为立柱trashing 应该发生。因此回调函数必须返回布尔值：true - 是否继续进行垃圾清理，false - 如果没有。

add_filter( \'pre_delete_post\', \'filter_function_name\', 10, 2 );
add_filter( \'pre_trash_post\', \'filter_function_name\', 10, 2 );

function filter_function_name( $delete, $post ) {

    // You have a field with user IDs for the post, get them as array of IDs
    $authors = array(1, 2, 3);
    
    // Get current user ID, who attempts to delete the post
    $current_user_ID = get_current_user_id();
    
    // make a check if the current user ID is among the co-authors IDs
    if ( !in_array( $current_user_ID, $authors ) ) {
        // If so, return false to prevent post deletion
        return false;
    }
    
    // else do nothing, and return default value
    return $delete;
}