Replace child in xml document

[socox11]

Hi all,

 

I can't get this code to work, if you can tel me what I am doing wrong I would be gratefull.

 

This is my XML file:

 

<?xml version="1.0" encoding="UTF-8"?>
<popis>
     <student>
          <prezime>Brkic</prezime>
          <ime>Ivica</ime>
          <index>D-142</index>
     </student>
     <student>
          <prezime>Cizek</prezime>
          <ime>Pero</ime>
          <index>D-143</index>
     </student>
</popis>

 

This is the form I wanna use to change nodes:

 

<form action="zamjena.php" method="post" enctype="multipart/form-data">
<table>
   <tr>  
     <td colspan="2"class="labelcell"><label for="ime">Ime:</label></td>
     <td colspan="2"class="fieldcell"><input type="text" id="ime" name="ime"  tabindex="1"/></td>
   </tr>
      <tr>  
     <td colspan="2"class="labelcell"><label for="prezime">Prezime:</label></td>
     <td colspan="2"class="fieldcell"> <input type="text" id="prezime" name="prezime"  tabindex="2"/><br />
</td>
   </tr>
        <tr>  
     <td colspan="2"class="labelcell"><label for="index">Index:</label></td>
     <td colspan="2"class="fieldcell"> <input type="text" id="index" name="index"  tabindex="3"/> <br />
</td>
   </tr>
<tr>  
     <td colspan="2"class="labelcell"><label for="index">ID:</label></td>
     <td colspan="2"class="fieldcell"> <input type="text" id="id" name="id"  tabindex="4"/> <br />
</td>
   </tr>
   <td colspan="4"><input type="submit" name="upload" class="box" value="Zamjeni" tabindex="5" /></td>
  </table>
</form>

 

"id" is the mark which node to change

 

And this is code for changin nodes, I found it on: http://us.php.net/manual/en/domnode.replacechild.php :

 

<?php
// Create a new document fragment to hold the new <student> node
$student = new DomDocument;
$student_node = $student ->createElement('student');

// Add some children
$student_node->appendChild($student->createElement('ime', '$_POST['ime']'));
$student_node->appendChild($student->createElement('prezime', '$_POST['prezime']'));
$student_node->appendChild($student->createElement('index', '$_POST['index']'));


// Add the keywordset into the new document
// The $student variable now holds the new node as a document fragment
$student->appendChild($student_node);
?>

Next, we need to locate the old node:

<?php
// Load the XML
$dom = new DomDocument;
$dom->loadXML($xml);

// Locate the old student node
$xpath = new DOMXpath($dom);
$nodelist = $xpath->query('/popis/student');
$oldnode = $nodelist->item($_POST['id']);
?>

We then import and replace the new node:

<?php
// Load the $student document fragment into the current document
$newnode = $dom->importNode($student->documentElement, true);

// Replace
$oldnode->studentNode->replaceChild($newnode, $oldnode);

// Display
echo $dom->saveXML();
?>

 

thx for help

 

[socox11]

maybe someone have better idea?? anything?

[BlueSkyIS]

i don't do anything with xml, but you need to remove quotes from around the $_POST variables. one example.

 

$student_node->appendChild($student->createElement('ime', $_POST['ime']));

 

the code should not even compile with those quotes in there. are you not getting syntax errors?

[socox11]

sry i forgot to remove those...

 

still doesnt work...

[socox11]

i solved it, problem was the path to node...

 

http://www.w3.org/TR/xpath/