我创建了一个自定义的帖子类型，具有简单的永久链接结构。现在我想用一些额外的信息来增强这个permalink结构。

public function custom_post_mission() {
        $labels = array(
           ...
        );

        $args = array(
            \'labels\'        => $labels,
            \'description\'   => __( \'Holds our missions and specific data\', TEXT_DOMAIN ),
            \'public\'        => true,
            \'menu_position\' => 5,
            \'supports\'      => array( \'title\', \'author\', \'editor\' ),
            \'has_archive\'   => true,
            \'menu_icon\'     => plugin_dir_url( __FILE__ ).\'img/mission.png\',
            \'register_meta_box_cb\' => array( $this, \'add_custom_box\' )
        );
        register_post_type( \'mission\', $args ); 
    }

通过上述编码，我得到了以下permalink结构：http://localhost/wordpress/mission/<post-title>/

我想将此结构改进为以下结构：http://localhost/wordpress/mission/<year>/<month>/<post-title>/

我该怎么做？如果有办法将旧的permalink结构转移到新的permalink结构，那就太好了，但这不是必需的。

BR&；谢谢

麦贝克

/E： 使用ravi提供的代码示例增强了我的代码

public function custom_post_mission() {
            global $wp_rewrite;
            $labels = array(
               ...
            );

            $args = array(
                \'labels\'        => $labels,
                \'description\'   => __( \'Holds our missions and specific data\', TEXT_DOMAIN ),
                \'public\'        => true,
                \'menu_position\' => 5,
                \'supports\'      => array( \'title\', \'author\', \'editor\' ),
                \'has_archive\'   => true,
                \'menu_icon\'     => plugin_dir_url( __FILE__ ).\'img/mission.png\',
                \'register_meta_box_cb\' => array( $this, \'add_custom_box\' )
            );
            register_post_type( \'mission\', $args );

            $wp_rewrite->add_permastruct(\'mission\', \'mission/%year%/%monthnum%/%mission%/\', true, 1);
            add_rewrite_rule(\'mission/([0-9]{4})/(.+)/?$\', \'index.php?mission=$matches[2]\', \'top\');
            $wp_rewrite->flush_rules(); // !!! 
        }

这将创建以下永久链接结构：

http://localhost/wordpress/mission/%year%/%monthnum%/<mission-title>/

但是%year% 和%monthnum% 占位符无法替换为相应的值。

/E2：我终于开始工作了。我需要一个过滤器来解析占位符：

add_filter(\'post_type_link\', \'mission_permalink\', 10, 3);

function mission_permalink( $permalink, $post_id, $leavename ) {
    $post = get_post($post_id);
        $rewritecode = array(
            \'%year%\',
            \'%monthnum%\',
            \'%day%\',
            \'%hour%\',
            \'%minute%\',
            \'%second%\',
            $leavename? \'\' : \'%postname%\',
            \'%post_id%\',
            \'%category%\',
            \'%author%\',
            $leavename? \'\' : \'%pagename%\',
        );

        if ( \'\' != $permalink && !in_array($post->post_status, array(\'draft\', \'pending\', \'auto-draft\')) ) {
            $unixtime = strtotime($post->post_date);

            $category = \'\';
            if ( strpos($permalink, \'%category%\') !== false ) {
                $cats = get_the_category($post->ID);
                if ( $cats ) {
                    usort($cats, \'_usort_terms_by_ID\'); // order by ID
                    $category = $cats[0]->slug;
                    if ( $parent = $cats[0]->parent )
                        $category = get_category_parents($parent, false, \'/\', true) . $category;
                }
                // show default category in permalinks, without
                // having to assign it explicitly
                if ( empty($category) ) {
                    $default_category = get_category( get_option( \'default_category\' ) );
                    $category = is_wp_error( $default_category ) ? \'\' : $default_category->slug;
                }
            }

            $author = \'\';
            if ( strpos($permalink, \'%author%\') !== false ) {
                $authordata = get_userdata($post->post_author);
                $author = $authordata->user_nicename;
            }

            $date = explode(" ",date(\'Y m d H i s\', $unixtime));
            $rewritereplace =
            array(
                $date[0],
                $date[1],
                $date[2],
                $date[3],
                $date[4],
                $date[5],
                $post->post_name,
                $post->ID,
                $category,
                $author,
                $post->post_name,
            );
            $permalink = str_replace($rewritecode, $rewritereplace, $permalink);

            // wp_die($permalink );
        } else { // if they\'re not using the fancy permalink option
        }
        return $permalink;
    }

我发现add\\u rewrite\\u规则regexp中有一个小错误。正确的一个：add_rewrite_rule(\'mission/([0-9]{4})/([0-9]{2})/(.+)/?$\', \'index.php?mission=$matches[3]\', \'top\');

add_action(\'init\', \'my_rewrite\');
function my_rewrite() {
    global $wp_rewrite;
    $wp_rewrite->add_permastruct(\'typename\', \'typename/%year%/%postname%/\', true, 1);
    add_rewrite_rule(\'typename/([0-9]{4})/(.+)/?$\', \'index.php?typename=$matches[2]\', \'top\');
    $wp_rewrite->flush_rules(); // !!!
}