Using WordPress ‘get_search_comments_feed_link()’ PHP function
Retrieves the permalink for the search results comments feed.
HTTPS
Using WordPress ‘js_escape()’ PHP function
Escape single quotes, specialchar double quotes, and fix line endings.
Using WordPress ‘is_user_option_local()’ PHP function
Check whether a usermeta key has to do with the current blog.
Using WordPress ‘is_trackback()’ PHP function
Determines whether the query is for a trackback endpoint call.