PHP and XML

[tvks]

Hi,I have a simple PHP code

$dom = new DomDocument;$dom->Load('test.xml');$xpath = new DOMXpath($dom);$node = $xpath->query('/contacts')->item(0);echo $node->nodeName . "\n";$GLOBALS['dom']->removeChild($GLOBALS['dom']->lastChild);$dom->save('test.xml');

and an XML file named 'test.xml'

<?xml version="1.0" encoding="ISO-8859-1"?>   <contacts>	  <entry uri="sip:vinayg@company.org">		<name>Vinay</name>		<sip> sip:vinayg@company.org </sip>		<Number> 9885821530 </Number>	  </entry>	  <entry uri="sip:vivek@company.org">		<name>Vivek</name>		<sip> sip:vivek@company.org </sip>		<Number> 9885821530 </Number>	  </entry>   </contacts>

My intention of this program is to delete only the entry tag with uri as 'sip:vivek@company.org' and all its child nodes (name, sip and Number). When I execute the above code the whole file is erased and there is no error or warning. Where am I wrong ?I would be happy for any help in correcting my code or redoing it as I am new to PHP and XML.My desired output of test.xml after execution is:

<?xml version="1.0" encoding="ISO-8859-1"?>   <contacts>	  <entry uri="sip:vinayg@company.org">		<name>Vinay</name>		<sip> sip:vinayg@company.org </sip>		<Number> 9885821530 </Number>	  </entry>   </contacts>

Thanx in advance.Regards,tvks

[boen_robot]

Try something like this:

$dom = new DomDocument;$dom->Load('test.xml');$xpath = new DOMXpath($dom);$node = $xpath->query("//*[@uri='sip:vivek@company.org'");echo $node->nodeName . "\n";$dom->removeChild($node);$dom->save('test.xml');

If I'm guessing right, by selecting

$GLOBALS['dom']->lastChild

you've actually been removing the last child of root of the complete document, which as it so happens is the root element and all of it's content.

[kvnmck18]

Err that PHP5...you know it, boen_robot

[tvks]

Hi Robot,My compiler is throwing me an error on execution of your program.

Warning: DOMXPath::query() [function.DOMXPath-query]: Invalid predicate in try_me.php on line 5Warning: DOMNode::removeChild() expects parameter 1 to be DOMNode, boolean given in try_me.php on line 7

I am new to php and am hence dumb folded. Kindly help me.With regards,tvks

[boen_robot]

I am much of a noob with this myself .For the first error, I had a typo in the query. I missed a "]" that would close the predicate:

$node = $xpath->query("//*[@uri='sip:vivek@company.org']");

and for the second error... maybe looping and selecting the item() would do:

while($i<=$node->length)  {$dom->removeChild($node->item($i));  $i++;  }