Function: Start preview theme output buffer.

Function: Private function to modify the current template when previewing a theme

Function: Formerly used to escape strings before searching the DB. It was poorly documented and never worked as described.

Function: Determines if the URL can be accessed over SSL.

Function: Scale down an image to fit a particular size and save a new copy of the image.

Function: Retrieve a single post, based on post ID.

Function: Callback formerly fired on the save_post hook. No longer needed.

Function: Check if the installed version of GD supports particular image type

Function: Converts an integer byte value to a shorthand byte value.