Description:
------------
---
From manual page: http://www.php.net/function.simplexml-load-string#refsect1-
function.simplexml-load-string-description
---
The simplexml_load_file() and simplexml_load_string() functions are documented 
to return a "object".
(Which prevents autocompletion in IDE's)

I propose to change the return value to SimpleXMLElement and the documentation 
to:

"Returns an SimpleXMLElement (or the specified descendant) with properties 
containing the data held within the xml document. On errors, it will return 
FALSE."

or the shorter:
"Returns a SimpleXMLElement or FALSE on failure."

That's used at http://www.php.net/manual/en/function.simplexml-import-dom.php