我正在使用Wordpress http api 从youtube api获取服务器响应代码，以便检查视频的有效性。我在我的函数中的函数中执行此操作。php处理我的帖子表单，我在这里收集youtube视频的url。问题是我得到的回应不一致，因为有效的视频偶尔会返回403。

现在，我还使用jquery检查前端的有效性。ajax（）使用相同的youtube api请求，并且在所有情况下都能正常工作。因此，视频将使用youtube api和jquery进行验证，然后有时使用php方法返回403。那么这里的问题是什么？这是我对表单的处理函数。你会注意到我每次都打印$video\\u id，以确保它是正确的。

function video_process_form( $query ) {
  global $error_output; 
  if ( $query->is_page( \'submit-video\' ) && isset( $_POST[\'title\'] )) {

    $output = null; 

    if ( ! function_exists( \'wp_handle_upload\' )) {
        require_once(ABSPATH . "wp-admin" . \'/includes/image.php\');
        require_once(ABSPATH . "wp-admin" . \'/includes/file.php\');
        require_once(ABSPATH . "wp-admin" . \'/includes/media.php\');
    }

    $file = $_FILES;

    // Do some minor form validation to make sure there is content
    if ($_POST[\'title\'] != null && $_POST[\'title\'] != \'Video Title\') {
        $title =  $_POST[\'title\'];
    } else {
        $error_output .= \'Please enter a video  title<br/>\';
    }

    if ($_POST[\'description\'] != null && $_POST[\'description\'] != \'Video Description\') {
        $description = $_POST[\'description\'];
    }

    if ($_POST[\'video_url\'] != null && $_POST[\'video_url\'] != \'Youtube URL\') {
        $vid_url = $_POST[\'video_url\'];
        $video_id = getVideoId($vid_url);
        if ($video_id) {
          printf($video_id);
          $video_response =    wp_remote_retrieve_response_code(wp_remote_get(\'http://gdata.youtube.com/feeds/api/videos/\' . 

          $video_id));
          printf($video_response);
          if ($video_response == 200) {
              $video_url = $vid_url;
          } else {
              $error_output .= \'This is not an existing youtube video<br/>\';
          }
        } else {
          $error_output .= \'This is not an existing youtube video<br/>\';
        }
    } else {
          $error_output .= \'This is not an existing youtube video<br/>\';
    }
    $tags = $_POST[\'post_tags\'];

    // Add the content of the form to $post as an array
    $new_post = array(
        \'post_title\'    => $title,
        \'post_content\'  => $description,
        \'tags_input\'    => array($tags),
        \'post_category\' => array(12),
        \'post_status\'   => \'publish\',           // Choose: publish, preview, future, draft, etc.
        \'post_type\' => fod_videos  // Use a custom post type if you want to
    );

    // If No Errors, Save Post and Redirect //
    if ($error_output == null) {
        $pid = wp_insert_post($new_post);
        update_post_meta($pid,\'video_code\',$video_url);
        wp_redirect( get_permalink($pid)); 
    // If Errors, Return Errors for Display in Template //
    }
 }
 do_action(\'wp_insert_post\', \'wp_insert_post\');
}
add_action( \'pre_get_posts\', \'video_process_form\' );