Description:
------------
DOMDocument::createCdataSection is leaving ascii control character \x10 which  
makes the resulting xml invalid.  It seems like this character should be handled 
by the function.  Otherwise it ahs to be escaped with:
$dom->createCDATASection(preg_replace('/[\x10]/', '', $value));

Test script:
---------------
header("Content-type: application/xml; charset=UTF-8");
$dom = new DOMDocument('1.0', 'UTF-8');
$e = $dom->createElement('element');
$dom->appendChild($e);
$e->appendChild($dom->createCDATASection("something\x10something"));
print $dom->saveXml();
exit();

Expected result:
----------------
I would expect clean xml.

Actual result:
--------------
Attempting to read it with DomDocument gives:
DOMDocument::loadXML() [<a href='domdocument.loadxml'>domdocument.loadxml</a>]: 
CData section not finished

Opening the above script in chrome gives:

This page contains the following errors:
error on line 2 at column 19: Input is not proper UTF-8, indicate encoding !
Bytes: 0x10 0x73 0x6F 0x6D