Dom Document PHP

[kardon33]

Hello all,

I am having trouble using the Dom Document classes in php5. Ill just go through a run down of what i need to accomplish, I need to be able to create a xml file and write to with log data with a few elements deep. When that is done it needs to be saved, but i need to be able to open it back up and add a entry to it.

I have figured out how to write to the file and save it using arrays as input, but after it is saved i cant figure out how to append the top element and add new childes.

Here is my xml structure:

<LOG>
  <ENTRY>
    <DATE>07:03:47 AM (07:03:47)</DATE>
    <ERLVL>1</ERLVL>
    <TYPE>User</TYPE>
    <DEVICE>Control Page</DEVICE>
    <MSG>User pressed play Best of Waters video</MSG>
  </ENTRY>
</LOG>
 

Here is my code of what ive done so far:

  $logs = array();
  $logs [] = array(
  'DATE' => '05/01/08',
  'ERLVL' => '1',
  'TYPE' => "System",
  'DEVICE' => "Firefly",
  'MSG' => "The Firefly did not respond to ping."
  );
  $logs [] = array(
  'DATE' => '05/01/08',
  'ERLVL' => '2',
  'TYPE' => "User",
  'DEVICE' => "Control Page",
  'MSG' => "User pressed ping firefly"
  );
 
  $doc = new DOMDocument();
  $doc->load( 'test.xml' );
  print_r($doc);
 
  $doc->formatOutput = true;
 
  $r = $doc->createElement( "LOG" );
  $doc->appendChild( $r );
 
  foreach( $logs as $log )
  {
  $b = $doc->createElement( "ENTRY" );
 
  $date = $doc->createElement( "DATE" );
  $date->appendChild(
  $doc->createTextNode( $log['DATE'] )
  );
  $b->appendChild( $date );
 
  $erlvl = $doc->createElement( "ERLVL" );
  $erlvl->appendChild(
  $doc->createTextNode( $log['ERLVL'] )
  );
  $b->appendChild( $erlvl );
 
  $type = $doc->createElement( "TYPE" );
  $type->appendChild(
  $doc->createTextNode( $log['TYPE'] )
  );
  $b->appendChild( $type );
 
  $device = $doc->createElement( "DEVICE" );
  $device->appendChild(
  $doc->createTextNode( $log['DEVICE'] )
  );
  $b->appendChild( $device );  
 
  $msg = $doc->createElement( "MSG" );
  $msg->appendChild(
  $doc->createTextNode( $log['MSG'] )
  );
  $b->appendChild( $msg );  
 
  $r->appendChild( $b );
  }
 
  echo $doc->save('test.xml');
 

Really all i need to know is how to append the element LOG and add another entry to it.

[Atli]

Hi.

Would something like this work?

<?php
// Load the file
$doc = new DOMDocument('1.0');
$doc->load("test.xml");
 
// Get the first LOG note
$nodes = $doc->getElementsByTagName("LOG");
 
if($nodes->length <= 0) 
    die("Unable to find root note");
else 
    $root = $nodes->item(0);
 
// Append some stuff
$entry = $root->appendChild(
    $doc->createElement('ENTRY')
);
 
$date = $entry->appendChild(
    $doc->createElement('DATE')
);
$dateText = $date->appendChild(
    $doc->createTextNode("2008-05-08")
); 
 
// Save
$doc->save("test.xml");
?>