Extra content at the end of the document PHP and XML

Question

I having a strange problem when I\'m trying to produce an XML file with PHP. The problems is that, a strange question mark appears at the end of the source code. And I get t

Answer 1

You have a zero width space character at the end of your file - UTF-8 code E2 80 8B. It is placed right after . Have a look at your file in hex mode. This extra character prevents your browser from recognizing this as valid XML and - depending on the browser in use - shows up as a question mark or does not show up at all.

Remove that extra character and you will be fine.