Description:
------------
When parse_xml_into_structure parses an xml, it seems for me that it skips the CDATA section. 
Parser assumes the CDATA node as an usual value of its node.
But, it should be actually parsed into a new child node - CDATA section

Reproduce code:
---------------
test.xml:
<?xml version="1.0" encoding="UTF-8" ?>
<PlaceHolderList>
<![CDATA[
function fnShow()
{

}
]]>
</PlaceHolderList>

test.php
$strXml      = implode("", file("test.xml"));
$objParser   = xml_parser_create();
xml_parser_set_option($objParser, XML_OPTION_CASE_FOLDING, 0);
xml_parser_set_option($objParser, XML_OPTION_SKIP_WHITE,   1);
xml_parse_into_struct($objParser, $strXml, $arrParserValues, $arrParserIndexes);
print_r($arrParserValues);

Expected result:
----------------
Array
(
    [0] => Array
        (
            [tag] => PlaceHolderList
            [type] => complete
            [level] => 1
            [value] => 
    [1] => Array
        (
            [tag] => PlaceHolderList
            [type] => cdata
            [level] => 2
            [value] => function fnShow(){    var aAll = document.all;    var e = new Enumerator(aAll);    while (!e.atEnd())    {>        alert (e.item());        e.moveNext();    }}
        )

)

Actual result:
--------------
Array
(
    [0] => Array
        (
            [tag] => PlaceHolderList
            [type] => complete
            [level] => 1
            [value] => function fnShow(){    var aAll = document.all;    var e = new Enumerator(aAll);    while (!e.atEnd())    {>        alert (e.item());        e.moveNext();    }}
        )

)