不知道有插件，但可以使用wp\\u schedule\\u single\\u event函数。

首先创建一个元框，该框包含以下值：删除时间以及从功能中删除时要设置的类别。

 /* hook meta box */
add_action("admin_init", "admin_init");

/* hook meta box function */
function admin_init(){
    add_meta_box("Featured Removal", "Featured Removal", "Featured_Removal_options", "post", "normal", "high");
}

/* display meta box */
function Featured_Removal_options() {
    global $post;
    $custom = get_post_custom($post->ID);
    echo \'<input type="hidden" name="wp_meta_box_nonce" value="\', wp_create_nonce(\'Featured Removal\'), \'" />\';
    <?
    <table border=0>
    <tr>
        <th style="width:20%"><label for="Remove_after">Remove From Featured After:</label></th>
        <td><input type="text" name="Remove_after" id="Remove_after" value="<?php $custom[\'Remove_after\'] ? $custom[\'Remove_after\'] : \'\'; ?>"/><br/>
        Enter time in Seconds Ex: 1 Hour = 3600 Seconds , 1 Day = 86400 Seconds.
        </td>
    </tr>
    <tr>
        <th style="width:20%"><label for="Remove_after_to_cat">Remove From Featured To Category:</label></th>
        <td><input type="text" name="Remove_after_to_cat" id="Remove_after_to_cat" value="<?php $custom[\'Remove_after_to_cat\'] ? $custom[\'Remove_after_to_cat\'] : \'\'; ?>"/><br/>
        Enter the category id of the category you want to remove the post after the time has passed. if more then one separate by commas Ex: 12,13,24
        </td>
    </tr>
    </table>
<?php }

/* save meta box hook*/
add_action(\'save_post\', \'save_Featured_Removal_options\');

/* save meta box function*/
function save_Featured_Removal_options($post_id) {
    if (!wp_verify_nonce($_POST[\'wp_meta_box_nonce\'], "Featured Removal")) {
        return $post_id;
    }
    // check autosave
    if (defined(\'DOING_AUTOSAVE\') && DOING_AUTOSAVE) {
        return $post_id;
    }
    If (isset($_POST[\'Remove_after\']) && isset($_POST[\'Remove_after_to_cat\'])){
        //cerate scheduled event
        $time = time() + $_POST[\'Remove_after\'];
        wp_schedule_single_event($time, \'Clean_my_featured\',$post_id);
        //save meta data
        update_post_meta($post_id, \'Remove_after\', $_POST[\'Remove_after\']);
        update_post_meta($post_id, \'Remove_after_to_cat\', $_POST[\'Remove_after_to_cat\']);
    }    
}

现在观察save Meta Box函数，如果用户为新类别输入了删除时间和类别id，那么我们将使用wp_schedule_single_event 并将其挂到“Clean_my_featured“。

因此，现在我们只需要添加该挂钩的操作和移除本身的函数：

 /* hook removal event function */
    add_action(\'Clean_my_featured\',\'remove_post_from_featured\');

// the function that removes a post form a category and sets a new one
function remove_post_from_featured($post_id) {
    $cats = get_post_meta($post_id, \'Remove_after_to_cat\', true);
    wp_set_post_terms( $post_ID, $cats, \'category\');
}

我不知道这是否有效，但它应该将所有内容复制到插件文件或主题函数中。php文件，它应该可以工作。

如果不让我知道。