ReplaceData() with "0" problem

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Hi !!!

I think this problem is already known - but I could not find anything in the
latest messages:
When I try put the value "0" into a node it just gives me:

<selectvalue/>0

instead of:

<selectvalue>0</selectvalue>

------------  The test.php file: ------------------------------

<html>
<head>
<title>Untitled Document</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
<?
require_once("xpath.class.php");
$xmlfile="file.xml";
$xpath = new XPATH($xmlfile);

if (isset($HTTP_POST_VARS["SUBMIT"])){

$xpath->replaceData("/DogTag[1]/selectvalue[1]",$HTTP_POST_VARS["select"]);
  $xpath->exportToFile($xmlfile,'','<?xml version="1.0"
encoding="iso-8859-1"'.'?'.'>');

}
?>
<body bgcolor="#FFFFFF">
<form method="post" action="">
  <select name="select">
    <option value="0" <? if
($xpath->getData("/DogTag[1]/selectvalue[1]")==0){ echo
"selected";}?>>0</option>
    <option value="1" <? if
($xpath->getData("/DogTag[1]/selectvalue[1]")==1){ echo
"selected";}?>>1</option>
  </select>
  <input type="submit" name="SUBMIT" value="Submit">
</form>
</body>
</html>

------------  The file.xml file:  ------------------------------

<?xml version="1.0" encoding="iso-8859-1"?>
<DogTag>
  <selectvalue>1</selectvalue>
</DogTag>

----------------------------------------------------------------

By the way:

565    $xmlString = $this->exportAsXml($absoluteXPath); //Nothing modified
here
566    $newline="\n";  //New
567    if (!fwrite($hFile, $xmlHeader.$newline.$xmlString)) { //New

makes the head of the written xml look nicer (new Line after <? ... ?>
part).

Ok, till next time ...

Jan