StartFunctionalGroupHeader Method
Creates a new EDI functional group header segment on the current document.
Object Oriented Interface
public function doStartFunctionalGroupHeader();
Procedural Interface
ipworksedi_edifactwriter_do_startfunctionalgroupheader($res);
Remarks
When called, a new functional group start (GS or UNG) segment is created and set as the current segment. You should then set the values on said segment before adding a new transaction set within the document.