Retrieves the tags for a post formatted as a string.

Retrieves the tags for a post.

Determines whether the post has a custom excerpt.

Determines whether the query is for an existing tag archive page.

Checks that the taxonomy name exists.

Determines whether the taxonomy object is hierarchical.

Check if Term exists.

Convert float number to format based on the locale.

Print the permalink to the RSS feed.

Create and modify WordPress roles for WordPress 2.3.