Get the main network ID.

Gets the main site ID.

Retrieve the number of database queries during the WordPress execution.

Retrieve the description for the HTTP status.

Return RegEx body to liberally match an opening HTML tag.

Determine a writable directory for temporary files.

Get the week start and end from the datetime or date string from MySQL.

Determine whether global terms are enabled.

Convert a duration to human readable format.

Check if IIS 7+ supports pretty permalinks.