### [分享一个WordPress面包屑导航代码](https://www.prosaas.cn/article/8282)

**Published:** 2021-05-06T02:13:33

**Author:** 5201314

**Excerpt:** 下面由WordPress教程栏目给大家分享一个WordPress面包屑导航代码，希望对需要的朋友有所帮助！转载…

下面由**WordPress**教程栏目给大家分享一个WordPress面包屑导航代码，希望对需要的朋友有所帮助！

转载分享一段WordPress面包屑导航代码，支持自定义帖子类型、自定义分类，但貌似在分类归档页面不能显示父子分类层级有点遗憾。

将代码添加到当前主题函数模板functions.php中：

/\*\*
 \* WordPress Breadcrumbs
 \*/
function tsh\_wp\_custom\_breadcrumbs() {
 
    $separator              = '/';
    $breadcrumbs\_id         = 'tsh\_breadcrumbs';
    $breadcrumbs\_class      = 'tsh\_breadcrumbs';
    $home\_title             = esc\_html\_\_('Home', 'your-domain');
 
    // Add here you custom post taxonomies
    $tsh\_custom\_taxonomy    = 'product\_cat';
 
    global $post,$wp\_query;
       
    // Hide from front page
    if ( !is\_front\_page() ) {
       
        echo '<ul id="' . $breadcrumbs\_id . '" class="' . $breadcrumbs\_class . '">';
           
        // Home
        echo '<li class="item-home"><a class="bread-link bread-home" href="' . get\_home\_url() . '" title="' . $home\_title . '">' . $home\_title . '</a></li>';
        echo '<li class="separator separator-home"> ' . $separator . ' </li>';
           
        if ( is\_archive() && !is\_tax() && !is\_category() && !is\_tag() ) {
              
            echo '<li class="item-current item-archive"><strong class="bread-current bread-archive">' . post\_type\_archive\_title('', false) . '</strong></li>';
              
        } else if ( is\_archive() && is\_tax() && !is\_category() && !is\_tag() ) {
              
            // For Custom post type
            $post\_type = get\_post\_type();
              
            // Custom post type name and link
            if($post\_type != 'post') {
                  
                $post\_type\_object = get\_post\_type\_object($post\_type);
                $post\_type\_archive = get\_post\_type\_archive\_link($post\_type);
              
                echo '<li class="item-cat item-custom-post-type-' . $post\_type . '"><a class="bread-cat bread-custom-post-type-' . $post\_type . '" href="' . $post\_type\_archive . '" title="' . $post\_type\_object->labels->name . '">' . $post\_type\_object->labels->name . '</a></li>';
                echo '<li class="separator"> ' . $separator . ' </li>';
              
            }
              
            $custom\_tax\_name = get\_queried\_object()->name;
            echo '<li class="item-current item-archive"><strong class="bread-current bread-archive">' . $custom\_tax\_name . '</strong></li>';
              
        } else if ( is\_single() ) {
              
            $post\_type = get\_post\_type();
 
            if($post\_type != 'post') {
                  
                $post\_type\_object = get\_post\_type\_object($post\_type);
                $post\_type\_archive = get\_post\_type\_archive\_link($post\_type);
              
                echo '<li class="item-cat item-custom-post-type-' . $post\_type . '"><a class="bread-cat bread-custom-post-type-' . $post\_type . '" href="' . $post\_type\_archive . '" title="' . $post\_type\_object->labels->name . '">' . $post\_type\_object->labels->name . '</a></li>';
                echo '<li class="separator"> ' . $separator . ' </li>';
              
            }
              
            // Get post category
            $category = get\_the\_category();
             
            if(!empty($category)) {
              
                // Last category post is in
                $last\_category = $category\[count($category) - 1\];
                  
                // Parent any categories and create array
                $get\_cat\_parents = rtrim(get\_category\_parents($last\_category->term\_id, true, ','),',');
                $cat\_parents = explode(',',$get\_cat\_parents);
                  
                // Loop through parent categories and store in variable $cat\_display
                $cat\_display = '';
                foreach($cat\_parents as $parents) {
                    $cat\_display .= '<li class="item-cat">'.$parents.'</li>';
                    $cat\_display .= '<li class="separator"> ' . $separator . ' </li>';
                }
             
            }
 
            $taxonomy\_exists = taxonomy\_exists($tsh\_custom\_taxonomy);
            if(empty($last\_category) && !empty($tsh\_custom\_taxonomy) && $taxonomy\_exists) {
                   
                $taxonomy\_terms = get\_the\_terms( $post->ID, $tsh\_custom\_taxonomy );
                $cat\_id         = $taxonomy\_terms\[0\]->term\_id;
                $cat\_nicename   = $taxonomy\_terms\[0\]->slug;
                $cat\_link       = get\_term\_link($taxonomy\_terms\[0\]->term\_id, $tsh\_custom\_taxonomy);
                $cat\_name       = $taxonomy\_terms\[0\]->name;
               
            }
              
            // If the post is in a category
            if(!empty($last\_category)) {
                echo $cat\_display;
                echo '<li class="item-current item-' . $post->ID . '"><strong class="bread-current bread-' . $post->ID . '" title="' . get\_the\_title() . '">' . get\_the\_title() . '</strong></li>';
                  
            // Post is in a custom taxonomy
            } else if(!empty($cat\_id)) {
                  
                echo '<li class="item-cat item-cat-' . $cat\_id . ' item-cat-' . $cat\_nicename . '"><a class="bread-cat bread-cat-' . $cat\_id . ' bread-cat-' . $cat\_nicename . '" href="' . $cat\_link . '" title="' . $cat\_name . '">' . $cat\_name . '</a></li>';
                echo '<li class="separator"> ' . $separator . ' </li>';
                echo '<li class="item-current item-' . $post->ID . '"><strong class="bread-current bread-' . $post->ID . '" title="' . get\_the\_title() . '">' . get\_the\_title() . '</strong></li>';
              
            } else {
                  
                echo '<li class="item-current item-' . $post->ID . '"><strong class="bread-current bread-' . $post->ID . '" title="' . get\_the\_title() . '">' . get\_the\_title() . '</strong></li>';
                  
            }
              
        } else if ( is\_category() ) {
               
            // Category page
            echo '<li class="item-current item-cat"><strong class="bread-current bread-cat">' . single\_cat\_title('', false) . '</strong></li>';
               
        } else if ( is\_page() ) {
               
            // Standard page
            if( $post->post\_parent ){
                   
                // Get parents 
                $anc = get\_post\_ancestors( $post->ID );
                   
                // Get parents order
                $anc = array\_reverse($anc);
                   
                // Parent pages
                if ( !isset( $parents ) ) $parents = null;
                foreach ( $anc as $ancestor ) {
                    $parents .= '<li class="item-parent item-parent-' . $ancestor . '"><a class="bread-parent bread-parent-' . $ancestor . '" href="' . get\_permalink($ancestor) . '" title="' . get\_the\_title($ancestor) . '">' . get\_the\_title($ancestor) . '</a></li>';
                    $parents .= '<li class="separator separator-' . $ancestor . '"> ' . $separator . ' </li>';
                }
                   
                // Render parent pages
                echo $parents;
                   
                // Active page
                echo '<li class="item-current item-' . $post->ID . '"><strong title="' . get\_the\_title() . '"> ' . get\_the\_title() . '</strong></li>';
                   
            } else {
                   
                // Just display active page if not parents pages
                echo '<li class="item-current item-' . $post->ID . '"><strong class="bread-current bread-' . $post->ID . '"> ' . get\_the\_title() . '</strong></li>';
                   
            }
               
        } else if ( is\_tag() ) { // Tag page
               
            // Tag information
            $term\_id        = get\_query\_var('tag\_id');
            $taxonomy       = 'post\_tag';
            $args           = 'include=' . $term\_id;
            $terms          = get\_terms( $taxonomy, $args );
            $get\_term\_id    = $terms\[0\]->term\_id;
            $get\_term\_slug  = $terms\[0\]->slug;
            $get\_term\_name  = $terms\[0\]->name;
               
            // Return tag name
            echo '<li class="item-current item-tag-' . $get\_term\_id . ' item-tag-' . $get\_term\_slug . '"><strong class="bread-current bread-tag-' . $get\_term\_id . ' bread-tag-' . $get\_term\_slug . '">' . $get\_term\_name . '</strong></li>';
           
        } elseif ( is\_day() ) { // Day archive page
               
            // Year link
            echo '<li class="item-year item-year-' . get\_the\_time('Y') . '"><a class="bread-year bread-year-' . get\_the\_time('Y') . '" href="' . get\_year\_link( get\_the\_time('Y') ) . '" title="' . get\_the\_time('Y') . '">' . get\_the\_time('Y') . ' Archives</a></li>';
            echo '<li class="separator separator-' . get\_the\_time('Y') . '"> ' . $separator . ' </li>';
               
            // Month link
            echo '<li class="item-month item-month-' . get\_the\_time('m') . '"><a class="bread-month bread-month-' . get\_the\_time('m') . '" href="' . get\_month\_link( get\_the\_time('Y'), get\_the\_time('m') ) . '" title="' . get\_the\_time('M') . '">' . get\_the\_time('M') . ' Archives</a></li>';
            echo '<li class="separator separator-' . get\_the\_time('m') . '"> ' . $separator . ' </li>';
               
            // Day display
            echo '<li class="item-current item-' . get\_the\_time('j') . '"><strong class="bread-current bread-' . get\_the\_time('j') . '"> ' . get\_the\_time('jS') . ' ' . get\_the\_time('M') . ' Archives</strong></li>';
               
        } else if ( is\_month() ) { // Month Archive
               
            // Year link
            echo '<li class="item-year item-year-' . get\_the\_time('Y') . '"><a class="bread-year bread-year-' . get\_the\_time('Y') . '" href="' . get\_year\_link( get\_the\_time('Y') ) . '" title="' . get\_the\_time('Y') . '">' . get\_the\_time('Y') . ' Archives</a></li>';
            echo '<li class="separator separator-' . get\_the\_time('Y') . '"> ' . $separator . ' </li>';
               
            // Month display
            echo '<li class="item-month item-month-' . get\_the\_time('m') . '"><strong class="bread-month bread-month-' . get\_the\_time('m') . '" title="' . get\_the\_time('M') . '">' . get\_the\_time('M') . ' Archives</strong></li>';
               
        } else if ( is\_year() ) { // Display year archive
 
            echo '<li class="item-current item-current-' . get\_the\_time('Y') . '"><strong class="bread-current bread-current-' . get\_the\_time('Y') . '" title="' . get\_the\_time('Y') . '">' . get\_the\_time('Y') . ' Archives</strong></li>';
               
        } else if ( is\_author() ) { // Author archive
               
            // Get the author information
            global $author;
            $userdata = get\_userdata( $author );
               
            // Display author name
            echo '<li class="item-current item-current-' . $userdata->user\_nicename . '"><strong class="bread-current bread-current-' . $userdata->user\_nicename . '" title="' . $userdata->display\_name . '">' . 'Author: ' . $userdata->display\_name . '</strong></li>';
           
        } else if ( get\_query\_var('paged') ) {
               
            // Paginated archives
            echo '<li class="item-current item-current-' . get\_query\_var('paged') . '"><strong class="bread-current bread-current-' . get\_query\_var('paged') . '" title="Page ' . get\_query\_var('paged') . '">'.\_\_('Page') . ' ' . get\_query\_var('paged') . '</strong></li>';
               
        } else if ( is\_search() ) {
           
            // Search results page
            echo '<li class="item-current item-current-' . get\_search\_query() . '"><strong class="bread-current bread-current-' . get\_search\_query() . '" title="Search results for: ' . get\_search\_query() . '">Search results for: ' . get\_search\_query() . '</strong></li>';
           
        } elseif ( is\_404() ) {
               
            // 404 page
            echo '<li>' . 'Error 404' . '</li>';
        }
 
        echo '</ul>';  
    }
}

将调用代码放到主题模板适当位置比如header.php中：

<?php if (function\_exists('tsh\_wp\_custom\_breadcrumbs')) tsh\_wp\_custom\_breadcrumbs(); ?>

配套样式：

#tsh\_breadcrumbs .separator{
    font-size:20px;
    color:#ccc;
    font-weight:100;
}
#tsh\_breadcrumbs{
    overflow:hidden;
    text-align: center;
    list-style:none;
    margin:11px 0;
}
#tsh\_breadcrumbs li{
    margin-right:14px;
    display:inline-block;
    vertical-align:middle;
}

以上就是分享一个WordPress面包屑导航代码的详细内容，更多请关注知企PROSAAS其它相关文章！

**Tags:** php, WordPress, 函数模板, 子类

**Categories:** WordPress

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