Flash interacting with a simple XML database

[Treccia]

Hello, I need to build a simple database (3 elements total) using XML and make the swf interact with it.

What I need is an interface that pops out if you've done a better score (better than the 3 saved in the XML).

Then you insert your name, send it with the proper button (or clear the field with the reset one) and then get a new classification in the txt field below dividing the players with their score.

To do this, since I wasn't able to do it on my own, I've found a ready-script and this is it:

var input_xml = new XML();
input_xml.ignoreWhite = true;
input_xml.contentType = "text/xml";
input_xml.onLoad = function(success){
    if (success)    input_txt.text = this.firstChild.firstChild.nodeValue;
    else            input_txt.text = "Error loading input XML";
}

var output_xml = new XML();
output_xml.ignoreWhite = true;
output_xml.onLoad = function(success){
    if (success)    output_txt.text = this.firstChild.firstChild.nodeValue;
    else            output_txt.text = "Error loading output XML";
}

var xml_file = "readwrite/simple_edit.xml";
var server_file = "simple_save.php";

load_btn.onRelease = function(){
    input_txt.text = "Loading...";
    input_xml.load(xml_file + "?uniq=" + new Date().getTime());
}
send_btn.onRelease = function(){
    input_xml.parseXML("<edit> new text </edit>");
    input_xml.firstChild.firstChild.nodeValue = input_txt.text;
    input_xml.xmlDecl = ""; // declaration duplication bug
    input_xml.sendAndLoad(server_file, output_xml);
    output_txt.text = "Loading...";
}

clearin_btn.onRelease = function(){
    input_txt.text = "";
}

this must be integrated with the following PHP code:

<?php
$filename = "readwrite/simple_edit.xml";
$raw_xml = file_get_contents("php://input");

print $raw_xml;

$fp = fopen($filename, "w");
fwrite($fp, $raw_xml);
fclose($fp);
?>

as you can see the script is in AS2 and that's why it isn't working.

Could you help me "translating" it in AS3? Or even show me an AS3 working example?

[relaxatraja]

Below is a clean tutorial on xml AS3:

http://www.republicofcode.com/tutorials/flash/as3xml/

[Treccia]

Thank you for answering relaxatraja but this tutorial just read the XML (as its title'Loading XML data').

I also need to write my XML to insert into the new score and then read it again.

Shortly:

1) Read the XML to find the 3 best scores;

2) Compare the 3 scores with the actual score;

3) If the actual score is better than one of them the interface pop;

4) The user insert his name;

5) Name and score are written on the XML

5) Read again the XML.

[relaxatraja]

You'r not able to write data into xml directly from flash. you should use some server side scripting like php or asp to achieve.

[Treccia]

Yes, I know that.

In the script I've found in fact there is this PHP page:

<?php
$filename = "readwrite/simple_edit.xml";
$raw_xml = file_get_contents("php://input");

print $raw_xml;

$fp = fopen($filename, "w");
fwrite($fp, $raw_xml);
fclose($fp);
?>

The code I've added in the first post works properly and I would use that if it weren't in AS2.

[relaxatraja]

http://blog.turtlebite.com/send-and-load-variables-with-as3-and-php/

[Treccia]

This seems interesting but would you like to explain me some things?

First of all what's the difference between GET and POST?

And after that, how can I customize that example to make it work updating my XML instead of returning a simple txt message?