[mogant0]

Hiya am a newbie so be gentle please.
I am trying to discover how to update a blooming attribute on an existing xml file????? and its driving me mental.

I have loaded the wee besom into php.
Am using simplexml.
I can read the xml and display the atrribute
. . . I can write a new xml file with the attribute
BUT what I would so dearly love to do is read the xml file and then change the attrib . . . . .and then update the XML.
Is this possible I am beginning to ask myself.

Now normaly I would store the data in mysql but am using flash which is using the xml for data so would like to adjust the xml content.

Heres a wee snippet of the XML

<calendar>
<once>
<date year="2009" month="5" day="13">
<event>I went wobbly</event>
</date>
<date year="2009" month="5" day="14">
<event>I started to cry</event>
</date>
<date year="2009" month="5" day="15">
<event>I went completely mental</event>
</date>
</once>
<</calendar>

So what I would like to do is access the date attrib "year" and then let the user in a form change it to another value.


PLEASE someone HELLLLPPPPPP

[Nico]

PHP Code:

$string = '

<calendar>

    <once>

    <date year="2009" month="5" day="13">

    <event>I went wobbly</event>

    </date>

    <date year="2009" month="5" day="14">

    <event>I started to cry</event>

    </date>

    <date year="2009" month="5" day="15">

    <event>I went completely mental</event>

    </date>

    </once>

</calendar>';



// Convert to SimpleXML

$xml = new SimpleXMLElement($string);



// Get year

echo $xml->once->date[0]['year'];



// Modify year

$xml->once->date[0]['year'] = '2003';



// Get modified year

echo $xml->once->date[0]['year'];



// Get whole modified XML.

echo $xml->asXML(); 

[mogant0]

Thanks you are a star . . . .couldnt see the woods for the trees when looking at examples i found
Anyhow thanks again this is the test code i've setup

PHP Code:

<?php

  // Here am loading up the original calendar xml file

  $file = "calendar.xml"; //this will actualy be passed when php is invoced

  $xml = simplexml_load_file($file); //create the simplexml



  // Here am emulating form fields coming in for attributes and event node

  // And changing the contents of these in the simplexml string. Will have

  // identified the occurance of date i wanna change and passed this through too

  // in this case have hard coded the first element ie:[0]

  $formyear = "2009";

  $formmonth = "5";

  $formday = "16";

  $formevent = "The day I did it";

  $xml->once->date[0]['year'] = $formyear;

  $xml->once->date[0]['month'] = $formmonth;

  $xml->once->date[0]['day'] = $formday;

  $xml->once->date[0]->event = $formevent;



  // convert to DOM so we can rewrite the calendar xml file.

  $dom_xml = dom_import_simplexml($xml); 

  $dom = new DomDocument();

  $dom_xml = $dom->importNode($dom_xml, true);

  $dom_xml = $dom->appendChild($dom_xml);

  print $dom->save("calendar.xml")

?>

I do be a very happy bunny
mogant