Description:
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The class "DOMCdataSection" inherits the function "splitText" from DOMText.
However, this function apparently always return bool(false), a return type not even mentioned in the DOMText::splitText documentation.

Test script:
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$CData = new DOMCdataSection('splithere!');
$CDataSplit = $CData->splitText(5);
var_dump($CData->data);			//string(10) "splithere!"
var_dump($CDataSplit->data);	//NULL

var_dump($CDataSplit);			//bool(false)

Expected result:
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The function $CData->splitText() should have returned a "DOMCdataSection" object with its "data" property containing "here!".
The object $CData should have its "data" property shortened to "split".

Actual result:
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The function $CData->splitText() returns boolean "false", and does not modify its object's "data" property.