Re: XPATH question

[Nigel S. <nig...@us...>]

Sorry this reply is so late... it's embarrasing.  I read it hoping =
someone else would reply cos I was busy, and then when I wasn't busy =
your question had dropped off the radar :o(

I am new to this class so please do not laugh if the question is =
elementary.  I am trying to user the following string as the query:=20

require_once("XPath.class.php");=20
$userID=3D'yyy';=20
$password=3D'xxx';=20

$url=3D"docs/userProfile.xml";=20
$xpath =3D new XPath($url);=20
$query =3D "/userProfiles/userProfile/general/userID=3D'$userID' AND =
/userProfiles/userProfile/general/password=3D'$password'";=20
$tree =3D $xpath->exportAsXml($query);=20

and I am keep getting the error:=20
Notice: Undefined index: =
/userProfiles/userProfile/general/userID=3D'yyy' AND =
/userProfiles/userProfile/general/password=3D'xxx' in c:\program =
files\apache group\apache\htdocs\plms\XPath.class.php on line 1235=20

Please help!=20

The exportAsXml() function takes as an arugment an "Absolute XPath".  =
This means that it must be the fully qualified address of a node in the =
XML document.  In the documentation introduction it describes this as:

| AbsoluteXPath: (xPath, xPathSet)
|     A absolute XPath is a string. It 'points' to *one* node in the =
XML-document. We use the
|     term 'absolute' to emphasise that it is not an xPath-query (see =
xPathQuery). A valid xPath=20
|     has the form like '/AAA[1]/BBB[2]/CCC[1]'. Usually functions that =
require a node (see Node)=20
|     will also accept an abs. XPath.

So what you probably want to do instead is:


require_once("XPath.class.php");=20
$userID=3D'yyy';=20
$password=3D'xxx';=20

$url=3D"docs/userProfile.xml";=20
$xpath =3D new XPath($url);=20
$query =3D "/userProfiles/userProfile/general/userID=3D'$userID' AND =
/userProfiles/userProfile/general/password=3D'$password'";=20
$aMatches =3D $xpath->match($query);
foreach($aMatches as $Match) {
    echo htmlspecialchars($xpath->exportAsXml($Match));=20
}

Cheers

Nigel