我正在尝试为一个名为“测试”的特定类别中的单个帖子创建永久链接。因此，我用一个过滤器设置了存根，该过滤器在保存帖子时反过来设置永久链接。目前，我已将其硬编码为“测试/发布1”。Stub和permalink设置得很好。然后我有一个重写规则，它将“test/post1/”写入“索引”。php？pagename=测试/post1”（再次硬编码，仅用于测试）。

这看起来很有效，但wordpress只显示了没有帖子的索引（404），所以我看到的是所有帖子页面，而不是单个帖子页面。有人知道怎么回事吗？

add_filter( \'wp_unique_post_slug\', \'filter_wp_unique_post_slug\', 10, 4 ); 
add_filter(\'rewrite_rules_array\',\'wp_insertMyRewriteRules\');
add_filter(\'init\',\'flushRules\'); 

function filter_wp_unique_post_slug( $slug, $post )
{
// Get the categories for the post
$category = get_the_category($post->ID); 
if (  !empty($category) && $category[0]->cat_name == "Test" )
{
    $slug = \'test/post1\';
}
return $slug; 
};

// Adding a new rule
function wp_insertMyRewriteRules($rules)
{
$newrules = array();
$newrules[\'(.*)/(.*)/$\'] = \'index.php?pagename=test/post1\';
return $newrules + $rules;
}

// Remember to flush_rules() when adding rules
function flushRules(){
global $wp_rewrite;
$wp_rewrite->flush_rules();
}

Edit 1

@米洛，我试过permalink过滤器，但当它不起作用时，我注意到鼻涕虫是不同的，我想可能有问题。我以前用过这个（下面）。permalink看起来像“测试/post1”，而slug看起来像“post1”。现在，我看到的所有帖子页面本身都有正确的帖子预览-它仍然不是该帖子的单个帖子页面。

add_filter( \'post_link\', \'custom_permalink\', 10, 3 ); 
add_filter(\'rewrite_rules_array\',\'wp_insertMyRewriteRules\');
add_filter(\'init\',\'flushRules\'); 

function custom_permalink( $permalink, $post, $leavename ) {
  $category = get_the_category($post->ID); 
  if (  !empty($category) && $category[0]->cat_name == "Test" )
  {
      $permalink = trailingslashit( home_url(\'test/\' . $post->post_name ) );
  }
  return $permalink;
}

function flushRules(){
  global $wp_rewrite;
  $wp_rewrite->flush_rules();
}

function wp_insertMyRewriteRules($rules)
{
  $newrules = array();
  $newrules[\'(.*)/(.*)/$\'] = \'index.php?name=post1\';
  return $newrules + $rules;
}

add_filter( \'post_link\', \'custom_permalink\', 10, 3 ); 
add_filter(\'rewrite_rules_array\',\'wp_insertMyRewriteRules\');
add_filter(\'init\',\'flushRules\'); 

function custom_permalink( $permalink, $post, $leavename ) {
  $category = get_the_category($post->ID); 
  if (  !empty($category) && $category[0]->cat_name == "Test" )
  {
      $permalink = trailingslashit( home_url(\'test/\' . $post->post_name ) );
  }
  return $permalink;
}

function flushRules(){
  global $wp_rewrite;
  $wp_rewrite->flush_rules();
}

function wp_insertMyRewriteRules($rules)
{
  $newrules = array();
  $newrules[\'^test/(.*)$\'] = \'index.php?name=$matches[1]\';
  return $newrules + $rules;
}