是否仅在其他元数据中的日期值结束时才显示元数据？

可能是个奇怪的问题。我正在使用自定义MetaBox and CustomFields Class Github上的jaredatch。

我有这个“事件日期”元框：

$meta_boxes[] = array(
        \'id\'         => \'event_date\',
        \'title\'      => \'Event Date\',
        \'pages\'      => array( \'wr_event\', ),
        \'context\'    => \'normal\',
        \'priority\'   => \'high\',
        \'fields\'     => array(
            array(
                \'name\' => \'Test Date Picker (UNIX timestamp)\',
                \'desc\' => \'field description (optional)\',
                \'id\'   => $prefix . \'event_date\',
                \'type\' => \'text_date_timestamp\',
            )
        ),
    );

我还有一个叫做“事件回顾”的metabox

$meta_boxes[] = array(
    \'id\'         => \'wr_event_review\',
    \'title\'      => \'Event Review\',
    \'pages\'      => array( \'wr_event\', ), // Post type
    \'context\'    => \'normal\',
    \'priority\'   => \'high\',
    \'show_names\' => true, // Show field names on the left
    \'fields\'     => array(
        array(
            \'name\'    => \'Event Review\',
            \'id\'      => $prefix . \'event_wysiwyg\',
            \'type\'    => \'wysiwyg\',
            \'options\' => array( \'textarea_rows\' => 5, ),
        )
    ),
);

我想知道是否有可能仅在日期结束时才显示event review metabox？

类似于…

if ( date(\'U\') > date(\'U\', $_POST["_wr_event_date"] ) ) {
     $meta_boxes[] = array(
        \'id\'         => \'wr_event_review\',
        \'title\'      => \'Event Review\',

然而，我不知道这是否可能，甚至不知道如何得到电流event_date 这在输入中。

对此有何想法？

function myplugin_add_my_custom_box($post_type,$post){ //Get event date as a timestamp $event_date = (int) get_post_meta($post->ID,\'_wr_event_date\',true); //Check date exists and is in the past. If not, return: don\'t add metabox. if( empty($event_date) || current_time(\'timestamp\') < $event_date) return; add_meta_box( \'myplugin_sectionid\', __( \'My Post Section Title\', \'myplugin_textdomain\' ), \'myplugin_metabox_callback\', \'event\' ); }

$meta_boxes[] = array( \'id\' => \'wr_event_review\', \'title\' => \'Event Review\', \'pages\' => array( \'wr_event\', ), // Post type \'context\' => \'normal\', \'priority\' => \'high\', \'show_names\' => true, // Show field names on the left \'visible\' => array(\'event_date\', \'>\', \'2015-08-25\'), \'fields\' => array( array( \'name\' => \'Event Review\', \'id\' => $prefix . \'event_wysiwyg\', \'type\' => \'wysiwyg\', \'options\' => array( \'textarea_rows\' => 5, ), ) ), );

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