Adds the REST API URL to the WP RSD endpoint.

Parses an RFC3339 time into a Unix timestamp.

Sends the “Allow” header to state all methods that can be sent to the current route.

Sends Cross-Origin Resource Sharing headers with API requests.

Retrieves the URL to a REST endpoint.

Filters an inline style attribute and removes disallowed rules.

Sanitizes a post field based on context.

Sets the scheme for a URL.

Set up global post data.

Retrieves languages available during the site/user sign-up process.