2019添加WordPress面包屑（Breadcrumbs）导航代码
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- WordPress
你在寻找一种方法来添加面包屑导航并在WordPress中显示它们吗？我们这有代码片段能实现，你可以使用它在WordPress中添加面包屑（Breadcrumbs）。
将此代码添加到主题的functions.php文件：
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function dimox_breadcrumbs() { $delimiter = '»'; $name = 'Home'; //text for the 'Home' link $currentBefore = '<span class="current">'; $currentAfter = '</span>'; if ( !is_home() && !is_front_page() || is_paged() ) { echo '<div id="crumbs">'; global $post; $home = get_bloginfo('url'); echo '<a href="' . $home . '">' . $name . '</a> ' . $delimiter . ' '; if ( is_category() ) { global $wp_query; $cat_obj = $wp_query->get_queried_object(); $thisCat = $cat_obj->term_id; $thisCat = get_category($thisCat); $parentCat = get_category($thisCat->parent); if ($thisCat->parent != 0) echo(get_category_parents($parentCat, TRUE, ' ' . $delimiter . ' ')); echo $currentBefore . 'Archive by category ''; single_cat_title(); echo ''' . $currentAfter; } elseif ( is_day() ) { echo '<a href="' . get_year_link(get_the_time('Y')) . '">' . get_the_time('Y') . '</a> ' . $delimiter . ' '; echo '<a href="' . get_month_link(get_the_time('Y'),get_the_time('m')) . '">' . get_the_time('F') . '</a> ' . $delimiter . ' '; echo $currentBefore . get_the_time('d') . $currentAfter; } elseif ( is_month() ) { echo '<a href="' . get_year_link(get_the_time('Y')) . '">' . get_the_time('Y') . '</a> ' . $delimiter . ' '; echo $currentBefore . get_the_time('F') . $currentAfter; } elseif ( is_year() ) { echo $currentBefore . get_the_time('Y') . $currentAfter; } elseif ( is_single() && !is_attachment() ) { $cat = get_the_category(); $cat = $cat[0]; echo get_category_parents($cat, TRUE, ' ' . $delimiter . ' '); echo $currentBefore; the_title(); echo $currentAfter; } elseif ( is_attachment() ) { $parent = get_post($post->post_parent); $cat = get_the_category($parent->ID); $cat = $cat[0]; echo get_category_parents($cat, TRUE, ' ' . $delimiter . ' '); echo '<a href="' . get_permalink($parent) . '">' . $parent->post_title . '</a> ' . $delimiter . ' '; echo $currentBefore; the_title(); echo $currentAfter; } elseif ( is_page() && !$post->post_parent ) { echo $currentBefore; the_title(); echo $currentAfter; } elseif ( is_page() && $post->post_parent ) { $parent_id = $post->post_parent; $breadcrumbs = array(); while ($parent_id) { $page = get_page($parent_id); $breadcrumbs[] = '<a href="' . get_permalink($page->ID) . '">' . get_the_title($page->ID) . '</a>'; $parent_id = $page->post_parent; } $breadcrumbs = array_reverse($breadcrumbs); foreach ($breadcrumbs as $crumb) echo $crumb . ' ' . $delimiter . ' '; echo $currentBefore; the_title(); echo $currentAfter; } elseif ( is_search() ) { echo $currentBefore . 'Search results for '' . get_search_query() . ''' . $currentAfter; } elseif ( is_tag() ) { echo $currentBefore . 'Posts tagged ''; single_tag_title(); echo ''' . $currentAfter; } elseif ( is_author() ) { global $author; $userdata = get_userdata($author); echo $currentBefore . 'Articles posted by ' . $userdata->display_name . $currentAfter; } elseif ( is_404() ) { echo $currentBefore . 'Error 404' . $currentAfter; } if ( get_query_var('paged') ) { if ( is_category() || is_day() || is_month() || is_year() || is_search() || is_tag() || is_author() ) echo ' ('; echo __('Page') . ' ' . get_query_var('paged'); if ( is_category() || is_day() || is_month() || is_year() || is_search() || is_tag() || is_author() ) echo ')'; } echo '</div>'; } } |
将此代码添加到主题的模板文件中（比如single.php），要显示面包屑导航的位置：
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<?php if (function_exists('dimox_breadcrumbs')) dimox_breadcrumbs(); ?> |
或者，你可以使用这个更简短的代码段。将此代码添加到主题的functions.php文件中：
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function the_breadcrumb() { echo '<ul id="crumbs">'; if (!is_home()) { echo '<li><a href="'; echo get_option('home'); echo '">'; echo 'Home'; echo "</a></li>"; if (is_category() || is_single()) { echo '<li>'; the_category(' </li><li> '); if (is_single()) { echo "</li><li>"; the_title(); echo '</li>'; } } elseif (is_page()) { echo '<li>'; echo the_title(); echo '</li>'; } } elseif (is_tag()) {single_tag_title();} elseif (is_day()) {echo"<li>Archive for "; the_time('F jS, Y'); echo'</li>';} elseif (is_month()) {echo"<li>Archive for "; the_time('F, Y'); echo'</li>';} elseif (is_year()) {echo"<li>Archive for "; the_time('Y'); echo'</li>';} elseif (is_author()) {echo"<li>Author Archive"; echo'</li>';} elseif (isset($_GET['paged']) && !empty($_GET['paged'])) {echo "<li>Blog Archives"; echo'</li>';} elseif (is_search()) {echo"<li>Search Results"; echo'</li>';} echo '</ul>'; } |
同样的，你可以将此代码添加到single.php文件或page.php以显示breadcrumbs菜单：
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<?php the_breadcrumb(); ?> |
原文连接：2019添加WordPress面包屑（Breadcrumbs）导航代码
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