wordpress添加面包屑

第一步：在functions.php中添加如下代码

 // 面包屑导航
 function get_breadcrumbs()
 {
 global $wp_query;
 if ( !is_home() ){
 // Start the UL
 echo '<ul id="crumbs">';
 // Add the Home link
 echo '<li><a href="'. get_settings('home') .'">'. get_bloginfo('name') .'</a></li>';
 if ( is_category() )
 {
 $catTitle = single_cat_title( "", false );
 $cat = get_cat_ID( $catTitle );
 echo "<li> > ". get_category_parents( $cat, TRUE, ">" ) ."</li>";
 }
 elseif ( is_archive() && !is_category() )
 {
 echo "<li> > Archives</li>";
 }
 elseif ( is_search() ) {
 echo "<li> > Search Results</li>";
 }
 elseif ( is_404() )
 {
 echo "<li> > 404 Not Found</li>";
 }
 elseif ( is_single() )
 {
 $category = get_the_category();
 $category_id = get_cat_ID( $category[0]->cat_name );
 echo '<li> >'. get_category_parents( $category_id, TRUE, "" );
 //echo the_title('','', FALSE) ."</li>";如果需要把文章标题也显示出来，把这行显示出来就行
 }
 elseif ( is_page() )
 {
 $post = $wp_query->get_queried_object();
 if ( $post->post_parent == 0 ){
 echo "<li> » ".the_title('','', FALSE)."</li>";
 } else {
 $title = the_title('','', FALSE);
 $ancestors = array_reverse( get_post_ancestors( $post->ID ) );
 array_push($ancestors, $post->ID);
 foreach ( $ancestors as $ancestor ){
 if( $ancestor != end($ancestors) ){
 echo '<li> » <a href="'. get_permalink($ancestor) .'">'. strip_tags( apply_filters( 'single_post_title', get_the_title( $ancestor ) ) ) .'</a></li>';
 } else {
 echo '<li> » '. strip_tags( apply_filters( 'single_post_title', get_the_title( $ancestor ) ) ) .'</li>';
 }
 }
 }
 }
 // End the UL
 echo "</ul>";
 }
 }

第二步：在需要使用面包屑的地方添加如下代码

<?php get_breadcrumbs(); ?>