Add has_tag function to determine if a post has a given tag
|Reported by:||Otto42||Owned by:||anonymous|
|Severity:||normal||Keywords:||has-patch 2nd-opinion has_tag tag|
As discussed on wp-hackers, this is a patch for a "has_tag" function. New Loop function which takes a tag slug, id, or name (or array of such) and returns true if the post has that tag, false if it doesn't. Also takes a null input and returns true if the post has any tag.
Useful for theme developers to produce different things depending on tags. Compare to "in_category", as this is basically the same thing but for tags.
Patch for trunk attached.