wordpress中的类别永久链接

Question

What is category permalink in wordpress?

     get_post_meta($post->ID, '_category_permalink', true);

What is the output for this?

Answer 1

永久链接意味着seo友好的类别网址，为了获得永久链接，你可以使用下面的代码

$category_link = get_category_link( $category_id );

Answer 2

The given code will output nothing because get_post_meta is useful for the meta_values associated with the post .

So to get category link, there is one function in wordpress which is get_category_link but it has required parameter category_id . So you eventually you also need category ID also to get category link.

To get category ID,you can use get_the_category and you can do something like ,

$cat_name = get_the_category($post->ID);

So it will give you an array of object(If you want to see that array object, simply do var_dump($cat_name) ) and you can get category_ID from that object.

So now you will have category link which you can get by get_category_link($cat_name[0]->cat_ID) .

Final code to get category link :

    $cat_name = get_the_category($post->ID);
    echo get_category_link($cat_name[0]->cat_ID);

NOTE : If you want link in loop, you can simply use the_category