Php和XML为新手

Question

I have this simple xml file :

<iPhone> 
  <anEvent>
    <data1>some Data</data1>
    <data2>Some data here </data2>
  </anEvent>

  <anEvent>
    <data1>some Data</data1>
    <data2>Some data here </data2>
  </anEvent>

</iPhone>

I need to get remove it from this file and write it to another file.

To get the <anEvent> i want, i do (i just want to transfer only one anEvent) :

$dom = new DomDocument(); 
$dom->load('myFile.xml');
$myData = $dom->getElementsByTagName('anEvent')->item(0); 

I get my at index 0 it's cool. In order to remove it I simply use :

$customRequete->parentNode->removeChild($myData);   
$dom->preserveWhiteSpace = false;
$dom->formatOutput = true;
$dom->saveXML();
$dom->save("myFile.xml");

It works, that's cool. The problem is when I want to write the <anEvent> to another file. I know how to write to XML but not using DOM DOCUMENT :

$myNewFile = simplexml_load_file("myNewFile.xml");
$event = $myNewFile->addChild('anEvent'); 
$data1 = $event->addChild('data1','someData'); 
$data2 = $event->addChild('data2','some data here');

I was wondering if I could use $myData from my $dom in order to write something like :

$myNewFile -> addChild($myData); 
$myNewFile->save();

Or do I need to loop into $myData to get the node values?

Answer 1

If you want to move nodes from a document to another, you have to import them, using the importNode method on the new created DOMDocument. The latter parameter allows you to recursively import every node child.