[PHP] manipulating XML via php DOM

[pere roca]

please, I need some help with php DOM, for me it's becoming a hell!

After trying other methods (check message from 19th november, called "php
DOM question"), I'm getting a little more success to manipulate XML.

>From the code you can see below you generate this xml. Now I just want to
keep only the initial <Or> and the final </Or>. How can I access and delete
the other (the "between" tags)? 
I suppose there is no way to create an initial <Or> without the associated
</Or>.
Thanks a lot,

Pere
 
This is the WRONG XML generated from code. 
...
<And>

  <PropertyIsEqualTo>
    <PropertyName>genus</PropertyName>
    <Literal>ontophaugs332</Literal>
  </PropertyIsEqualTo>

<Or>

   <PropertyIsEqualTo>
     <PropertyName>genus</PropertyName>
        <Literal>copris</Literal>
   </PropertyIsEqualTo>
</Or>
<Or>

   <PropertyIsEqualTo>
     <PropertyName>genus</PropertyName>
        <Literal>copris2</Literal>
   </PropertyIsEqualTo>
</Or>
</And>

<?php
$species=array('ontophaugs332','copris','copris2');
$dom = new DOMDocument;
//XML we will insert the data to
$dom -> load('edit_iberia3.xml');


$count=count($species);

foreach ($species as $sp=>$value) {
//we pass parameters of the array

        $where_to_insert= $dom->getElementsByTagName('And')->item(0);
    
        $child = $dom->createElement('Or');             
        $or=$where_to_insert->appendChild($child);
        
        $child = $dom->createElement('PropertyIsEqualTo');              
        $first=$or->appendChild($child);
  
        $child2 = $dom->createElement('PropertyName');
        $first->appendChild($child2);
        
        $child3 = $dom->createElement('Literal');
        $first->appendChild($child3);

        //inserting the array data
        $values = $dom->createTextNode($value);
        $values = $child3->appendChild($values);
     }

echo $dom->save(nou_iberia);
?> 
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