Inserts a comment into the database.

Insert or update a post.

Check or set whether WordPress is in “installation” mode.

Determines if the variable is a numeric-indexed array.

Displays or retrieves the HTML list of categories.

Filters ‘img’ elements in post content to add ‘srcset’ and ‘sizes’ attributes.

Determines if the date should be declined.

Sends a comment moderation notification to the comment moderator.

Sends a notification of a new comment to the post author.

Normalize a filesystem path.