没有使用wp_Schedule_Event更新自定义字段的结果

我最近开发了一个新闻博客。我的客户要求提供一篇文章的facebook共享计数。

我可以使用facebook api获取共享数量，但是，根据我从各处的各种问题中找到的信息，facebook限制了api调用的数量。因此，我决定每小时提取一次共享计数信息，然后使用自定义元字段更新每个帖子的共享计数信息。我用过wp_schedule_event 用于自动化。但是，下面的代码是如何工作的。

register_activation_hook( __FILE__, \'cb_fb_share_count_activation\' );
function cb_fb_share_count_activation() {
    $timestamp = wp_next_scheduled( \'cb_update_fb_share_count\' );
    if( $timestamp == false ){
       wp_schedule_event( time(), \'hourly\', \'cb_update_fb_share_count\' );
    }
}
add_action( \'cb_update_fb_share_count\', \'cb_update_count\' );
function cb_update_count(){
    $posts = get_posts(array(\'numberposts\' => -1) );
    foreach($posts as $post) {
        setup_postdata($post);
        $url = get_the_ID();
        $fbcount = json_decode( file_get_contents( \'https://api.facebook.com/method/links.getStats?urls=\'.$url.\'&format=json\' ));
        $fb_share_count = $fbcount[0]->share_count; 
        update_post_meta(get_the_ID(), \'cb_fb_share_count\', $fb_share_count);
    }
    wp_reset_postdata();
}
register_deactivation_hook( __FILE__, \'cb_delete_fb_share_count_schedule\' );
function cb_delete_fb_share_count_schedule() {
    wp_clear_scheduled_hook( \'cb_update_fb_share_count\' );
}

然后，我尝试了“wp\\u footer”来测试get\\u帖子，它正在工作。定制挂钩有什么问题？我哪里做错了？

P.S: I am aware that Wp-cron requires a page view to operate properly.

$posts = get_posts(array(\'numberposts\' => -1) ); foreach($posts as $post) { $url = get_permalink( $post->ID ); $fbcount = json_decode( file_get_contents( \'https://api.facebook.com/method/links.getStats?urls=\'.$url.\'&format=json\' ) ); $fb_share_count = $fbcount[0]->share_count; update_post_meta( $post->ID, \'cb_fb_share_count\', $fb_share_count ); }

register_activation_hook( __FILE__, \'cb_fb_share_count_activation\' ); function cb_fb_share_count_activation() { wp_schedule_event( time(), \'hourly\', \'cb_update_fb_share_count\' ); } register_deactivation_hook( __FILE__, \'cb_delete_fb_share_count_schedule\' ); function cb_delete_fb_share_count_schedule() { wp_clear_scheduled_hook( \'cb_update_fb_share_count\' ); } add_action( \'cb_update_fb_share_count\', \'cb_update_count\' ); function cb_update_count(){ $posts = get_posts(array(\'numberposts\' => -1) ); foreach($posts as $post) { $url = get_permalink( $post->ID ); $response = wp_remote_get(\'https://api.facebook.com/method/links.getStats?urls=\'.$url.\'&format=json\' ); if( ! is_wp_error( $response ) ) { $fbcount = json_decode( wp_remote_retrieve_body( $response ) ); $fb_share_count = $fbcount[0]->share_count; update_post_meta( $post->ID, \'cb_fb_share_count\', $fb_share_count ); } else { //Do something if it was an error comunicating with Facebook } } }

如何在自定义主题的标题中添加附件的Facebook OpenGraph元标记？

当标题已经被调用，并且需要添加的值在正文中获得时，如何在标题中添加Facebook OpenGraph标记？这是一个高度定制的主题（我没有创建）。这是image.php 包含图像附件页的文件： <div class=\"posted-att\"> <?php echo wp_get_attachment_image($attachment_id,\'large\'); 我不知道在哪里$attachment_id 已设置。它没有设定imag

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如何在自定义主题的标题中添加附件的Facebook OpenGraph元标记？