On Mon, May 2, 2011 at 3:16 PM, Ron Piggott <ron.piggott@xxxxxxxxxxxxxxxxxx> wrote: Is it possible to write a function with an optional flag? What would the syntax look like? So far I have: function load_advertisement( $web_page_reference , $web_advertising_sizes_reference ) { Hi Ron: I'm not sure what you mean by "optional flag"? Do you mean an optional parameter? Richard Correct Richard. Ron