Description:
------------
See the code, end of line comment "//" and "##" does 
not work with the PHP ending tag.
It could be not very important but, if you have a line 
like that :
echo "<?xml version=\"1.0\"?>";
You comment it with "//" and now the PHP script exit 
since it found the "?>" into line.
The only way is to use the "/* */" comment.

Reproduce code:
---------------
<?
echo "I'm ";
// ?>
echo "outside the PHP script";
?>

Expected result:
----------------
I'm outside the PHP script

Actual result:
--------------
I'm echo "outside the PHP script"; ?>