要在post permalink中使用所有标签，请尝试我的类似答案的变体How to use first tag in permalinks

• add_rewrite_tag( $tag, $regex ) 添加可在设置/永久链接中使用的新占位符。

  过滤器打开post_link 将占位符转换为有用的内容，这里是所有标记段塞的列表，由-.

  调整静态变量$default 和$placeholder 满足您的需求。

  然后将代码作为插件安装并激活，转到设置/永久链接，并使用如下新占位符：

  

add_action( \'init\', array ( \'T5_All_Tags_Permalink\', \'init\' ) );

/**
 * Adds \'%tag%\' as rewrite tag (placeholder) for permalinks.
 */
class T5_All_Tags_Permalink
{
    /**
     * What to use when there is no tag.
     *
     * @var string
     */
    protected static $default = \'tag\';

    /**
     * Used in Settings/Permalinks
     *
     * @var string
     */
    protected static $placeholder = \'%tags%\';

    /**
     * Add tag and register \'post_link\' filter.
     *
     * @wp-hook init
     * @return  void
     */
    public static function init()
    {
        add_rewrite_tag( self::$placeholder, \'([^/]+)\' );
        add_filter( \'post_link\', array( __CLASS__, \'filter_post_link\' ) , 10, 2 );
    }

    /**
     * Parse post link and replace the placeholder.
     *
     * @wp-hook post_link
     * @param   string $link
     * @param   object $post
     * @return  string
     */
    public static function filter_post_link( $link, $post )
    {
        static $cache = array (); // Don\'t repeat yourself.

        if ( isset ( $cache[ $post->ID ] ) )
            return $cache[ $post->ID ];

        if ( FALSE === strpos( $link, self::$placeholder ) )
        {
            $cache[ $post->ID ] = $link;
            return $link;
        }

        $tags = get_the_tags( $post->ID );

        if ( ! $tags )
        {
            $cache[ $post->ID ] = str_replace( self::$placeholder, self::$default, $link );
            return $cache[ $post->ID ];
        }

        $slugs = wp_list_pluck( $tags, \'slug\' );
        $cache[ $post->ID ] = str_replace( self::$placeholder, join( \'-\', $slugs ), $link );

        return $cache[ $post->ID ];
    }
}