wordpress教程：面包屑导航（更细版本）

2019年12月15日13:22:28 发表评论热度467 ℃

之前大叔分享过一例 wordpress面包屑的代码教程，详情可见：GO 今天再分享一款更加细化的 wordpress面包屑导航，教程依然很简单，往functions.php加代码，然后前端调用即可，至于样式，自由发挥吧。代码如下：

function wpmomo_breadcrumb_html($post_id,$separator){
$path[] = wpmomo_breadcrumb_output( home_url('/'), '首页');
if( get_post_type($post_id)=='post' ) {
$cats_id = array();
$categories = get_the_category($post_id);
if($categories){
foreach($categories as $category) {
if(!in_array($category->term_id,$cats_id)){
if ( $category->parent ){
$path[] = wpmomo_get_category_parents( $category->parent, $separator );
$cats_id[] = $category->parent;
}
$path[] = wpmomo_breadcrumb_output( get_category_link( $category->term_id ), $category->name);
$cats_id[] = $category->term_id;
}
}
}
}
if( is_singular() && !is_single() && !is_page() ){
$post_type = get_post_type();
$post_type_obj = get_post_type_object( $post_type );
$path[] = wpmomo_breadcrumb_output( get_post_type_archive_link( $post_type ), $post_type_obj->labels->singular_name);
}
$path[] = wpmomo_breadcrumb_output( get_permalink($post_id), get_the_title($post_id));
echo join( $separator ,$path);
}
function wpmomo_get_category_parents( $id, $separator='', $visited = array() ) {
$chain = '';
$parent = get_term( $id, 'category' );
if ( is_wp_error( $parent ) )
return $parent;
$name = $parent->name;
if ( $parent->parent && ( $parent->parent != $parent->term_id ) && !in_array( $parent->parent, $visited ) ) {
$visited[] = $parent->parent;
$chain .= wpmomo_get_category_parents( $parent->parent, $separator, $visited );
}
$chain .= wpmomo_breadcrumb_output( get_category_link( $parent->term_id ), $name);
return $chain;
}
function wpmomo_breadcrumb_output($url,$name){
return '<span">'.$name.'';
}