Ajax handler to renew the REST API nonce.

Retrieve a list of protocols to allow in HTML attributes.

Count number of sites grouped by site status.

Creates image sub-sizes, adds the new data to the image meta sizes array, and updates the image metadata.

Displays a list of contributors for a given group.

Displays the title for a given group of contributors.

Checks to see if all of the feed url in $check_urls are cached.

Retrieves the date, in localized format.

Kills WordPress execution and displays HTML page with an error message.

Checks if two numbers are nearly the same.