我想用这个page_template template 来自WP论坛，目的与原作者相同：

我正在尝试为一篇文章使用两个单独的永久链接/模板-每个都提供不同的文章视图（通过不同的模板）。http://example.com/category/post-name -> 使用模板1。phphttp://example.com/category/post-name/details -> 使用模板2。php

我已经根据线程中讨论的更改修改了代码，但我的备用模板（用于自定义帖子类型）没有加载-/post name/detail只是重定向到/post name/。

有什么想法吗？

// Add \'detail\' to the permalink structure / query string 
function detail_rewrite_rules( $rules ) {
    $newrules = array();
    $newrules[\'(.+?)/([^/]+)(/[0-9]+)?/detail/?$\'] = \'index.php?category_name=$matches[1]&name=$matches[2]&page=$matches[3]&detail=1\'; 

    return $newrules + $rules;
}
add_filter( \'rewrite_rules_array\',\'detail_rewrite_rules\' );

function detail_flush_rules(){
    $rules = get_option( \'rewrite_rules\' );

    if ( ! isset( $rules[\'(.+?)/([^/]+)(/[0-9]+)?/detail/?$\'] )   ) {

        global $wp_rewrite;
        $wp_rewrite->flush_rules();
    }
}
add_action( \'init\',\'detail_flush_rules\' );

// Open up \'detail\'
function detail_queryvars( $qvars ) {
  $qvars[] = \'detail\';
  return $qvars;
}
add_filter(\'query_vars\', \'detail_queryvars\' );

// Switch between templates
function filter_single_template($template){

    $object = get_queried_object();
    $templates = array();

    /* If detail is in the query string, create a list of templates to use */
    // if($_GET[\'detail\']) {
    // if( get_query_var(\'detail\') ) {
    global $wp_query;
    if ( $wp_query->query_vars[\'detail\'] ) {    
        echo "<script>console.log(\'Detail template activated\');</script>";
        $templates[] = "single-photos-detail.php";
        // $templates[] = "detail-single.php";
        // $templates[] = "detail-single-{$object->post_type}.php";
    }

    /* If one of our custom detail templates exists, return it.
     * Otherwise return the original template
     */
    $templateSwitch = locate_template($templates);
    return (!empty($templateSwitch)) ? locate_template($templates) : $template;
}
add_filter(\'page_template\', \'filter_single_template\');