PHPT and --FILEEOF--

I've been doing some research for a new document which details all sections of the PHPT file layout. It includes a description, any requirements, whether it's a required section, format and diverse examples for each and every section. When I ran into --FILEEOF--, I hit a wall. None of the descriptions I've found point to any real world usages. I then search all the PHPTs and only found 2 instances of it's usage in current use: /tests/lang/bug35382.phpt /tests/lang/comments2.phpt The reason for using --FILEEOF-- in either of these tests wasn't apparent to me. So I ran both tests and they both passed. But then I modified them swapping out the --FILEEOF-- for --FILE-- and reran the tests. Both passed again. This unfortunately leads me to believe that even these two tests don't present any real world reason for this construct. So I'm a little unsure what the use case for --FILEEOF-- is. Can anyone help me out? Eric Stewart ericleestewart@gmail.com