如何创建主页/博客名称/类别/页面标题的通用面包屑？

Question

I am trying to create breadcrumbs for my site that is formatted Home / Blog / Category / Page or Post Name

I do not wish to use a plugin and I have tried to use the following code but its not working out well.

  function get_blog_breadcrumb() {

  echo '<a href="'.home_url().'" rel="nofollow">Home</a>&nbsp;/&nbsp;';
  echo '<a href="'.get_post_type_archive_link('post-id').'" rel="nofollow">'.get_the_archive_title().'</a>';

  if (is_category() || is_single()) {
      echo "&nbsp;/&nbsp;";
      the_category('&nbsp;/&nbsp;');
      
  } elseif (is_page()) {
      echo "&nbsp;/&nbsp;";
      echo the_title();

  } elseif (is_search()) {
      echo "&nbsp;/&nbsp;Search Results for... ";
      echo '"<em>';
      echo the_search_query();
      echo '</em>"';
  }
}

Answer 1

I like to build an array of the path of the breadcrumb first, using this format: ['name' => 'url'] . so first:

$arr_breadcrumbs['Home'] =  get_site_url();

Then I use is_home() , is_single() , is_category() to push for example ['Blog'=> get_option('page_for_posts', true)] and so on. Finish it by pushing last the title of page/post with value of null. Then you can use this simple routine to print the breadcrumb:

function itg_the_breadcrumbs($arr_breadcrumbs)
{
    foreach ($arr_breadcrumbs as $title => $url) {
        if ($url) {
            echo '<li class="breadcrumb-item"><a href="' . $url . '">' . $title . '</a></li>';
        } else {
            echo '<li class="breadcrumb-item active" aria-current="page">' . $title . '</li>';
        }
    }
}