Question

我正在尝试使用cookie构建最近查看的WP小部件。

我的代码如下：

function complete_cookie() {    

        $data = get_the_ID();
        //$data = implode( ',' , get_the_ID() ); // not working
        setcookie( 'mp_last_viewed_cookie', json_encode( $data ), strtotime( '+30 days' ), COOKIEPATH, COOKIE_DOMAIN, false, false );
    }
    add_action( 'get_header', 'complete_cookie' );

在我的小部件中，我使用这样的cookie：

if ( $sortby == 'recently_viewed' ) {
        if ( isset( $_COOKIE['mp_last_viewed_cookie'] ) ) {

            $items = json_decode( stripslashes( $_COOKIE['mp_last_viewed_cookie'] ), true );

            if ( ! empty( $items ) ) {              
                $params['post__in'] = array($items);
                $params['orderby'] = 'post__in';
                $params['post__not_in'] = array($post_id);
            }
        } else {

        }
    }

当我执行var_dump($items);时，它只显示一个帖子ID，考虑到我使用$data = get_the_ID();

我尝试使用$data = implode( ',' , get_the_ID() );，但这不起作用。任何人都想知道如何获得已查看的帖子ID列表，而不仅仅是一个？我想展示4个最新观看的帖子。

非常感谢任何帮助。

Answer 1

如果json中的第一个元素是数组，那么json_decode将返回一个数组。您不需要创建另一个数组，只需要将返回值赋给变量。

$params['post__in'] = $items;

在最后评论后编辑

将新ID附加到现有ID

if ( isset( $_COOKIE['mp_last_viewed_cookie'] ) ) {
    $data = json_decode( stripslashes( $_COOKIE['mp_last_viewed_cookie'] ), true );
    $data[] = get_the_ID();

} else {
    $data = array(get_the_ID());
}

setcookie( 'mp_last_viewed_cookie', json_encode( $data ), strtotime( '+30 days' ), COOKIEPATH, COOKIE_DOMAIN, false, false );

Answer 2

花了一些时间，但我终于开始工作了。

function complete_cookie() {

    $viewed_posts = array();    

    if(isset($_COOKIE['mp_recently_viewed']) && $_COOKIE['mp_recently_viewed']!='') { 

        $viewed_posts =  unserialize($_COOKIE['mp_recently_viewed']);

        if (! is_array($viewed_posts)) {            
                $viewed_posts = array(get_the_ID()); 
        } else{          
         $viewed_posts = array_diff($viewed_posts, array(get_the_ID())); // for removing current post in cookie 
            array_unshift($viewed_posts,get_the_ID());// update cookie with current post
        }

     } else {
          $viewed_posts = array(get_the_ID());
     }

     setcookie( 'mp_recently_viewed', serialize($viewed_posts), strtotime( '+7 days' ), COOKIEPATH, COOKIE_DOMAIN, false, false );

}
add_action( 'get_header', 'complete_cookie' );

在小部件中我使用了这个：

$params = array(
        'post_type'      => 'download',
        'posts_per_page' => $limit,
        'post_status'    => 'publish',
        'offset'         => $offset,
     );

if ( $sortby == 'recently_viewed' ) {
        if(isset($_COOKIE['mp_recently_viewed']) && $_COOKIE['mp_recently_viewed']!='') {

            $viewed_posts =  unserialize($_COOKIE['mp_recently_viewed']);

            if ( ! empty( $viewed_posts ) ) {               
                $params['post__in'] = $viewed_posts;
                $params['orderby'] = 'post__in';
                $params['post__not_in'] = array( get_the_ID() );
            }
        } else {

        }
    }

$post_query = new WP_Query($params);

在Cookie中发布ID

2 个答案:

在最后评论后编辑