accessing parsed JSON (generated via php) in native Actionscript3 (Flash) - php

Question

Okay, here goes. I'm sure I'm only missing a small thing somewhere.
I'm trying to do a little Highscore System for my game and thus I have a php script on a webspace for the programm to access (I have literally 0 experience with php):
<?php
$json = json_encode($_REQUEST);
$fileSave = fopen("processdata.txt", "a+") or die ("Can't create processdata.txt");
fwrite($fileSave, $json);
fclose($fileSave);
print($json);
?>
processdata.php
then, in actionscript, I juse this code to access the file and parse it:
//set variables to send to the php script
var variables:URLVariables = new URLVariables();
variables["name"] = "Player1";
variables["points"] = 123;
//set request to load php script
var request:URLRequest = new URLRequest("processdata.php");
request.method = URLRequestMethod.POST;
request.data = variables;
var loader:URLLoader = new URLLoader();
loader.addEventListener(Event.COMPLETE, httpRequestComplete);
loader.load(request);
//php script finished
function httpRequestComplete(_e:Event){
//load processdata.txt
var uLoader:URLLoader = new URLLoader();
var uReq:URLRequest = new URLRequest("processdata.txt");
uLoader.addEventListener(Event.COMPLETE, getProcessdata);
uLoader.load(uReq);
}
//loading of processdata.txt finished
function getProcessdata(_e:Event){
var rawData : String = _e.target.data;
//convert the input string in readable JSON
rawData = rawData.split('"').join("\\\"");
rawData = "\"" + rawData + "\"";
//convert into JSON
var proData:Object = JSON.parse(rawData);
}
here is what processdata.txt looks like (for example)
{"name":"Player1","points":"123"}{"name":"Player2","points":"234"}
this is then converted in my AC into this (to make it readable for the JSON.parse):
"{\"name\":\"Player1\",\"points\":\"123\"}{\"name\":\"Player2\",\"points\":\"234\"}"
Now, how to I access the parsed JSON String? I tried all of those and nothing works:
proData.name;
proData[name];
proData["name"];
proData[0];
proData[name[0]];
for (var obj : String in proData){
obj;
}
Any help is appreciated. Doesn't matter where you find a possibility to make this work (PHP, AC3, JSON, etc)
Also, if you have a simple possibility for me to change my php in a way that it creates xml instead of php, I can do the rest from there, I get my Code to work with a XML File.
Thanks in advance.

Answer 1

You should know that your JSON content is not valid and that's why you can get nothing from it in the ActionScript side.
As you are saving players scores, you can store your data as an array :
[
{
"name": "Player1",
"points": "123"
}, {
"name": "Player2",
"points": "234"
}
]
but to get that, you've to edit your PHP code like this, for example :
<?php
$json_file = 'scores.json';
$new_score = $_REQUEST;
if(file_exists($json_file))
{
// get stored scores
$scores = json_decode(file_get_contents($json_file));
} else {
// create an empty array to store scores
$scores = array();
}
// add the new score to scores array
array_push($scores, $new_score);
// persist scores array as json content
file_put_contents($json_file, json_encode($scores));
?>
then in the ActionScript side, you can do :
function getProcessdata(e:Event) : void
{
var rawData:String = e.target.data;
var data:Array = JSON.parse(rawData) as Array;
for(var i:int = 0; i < data.length; i++){
trace(data[i].name); // gives for example : "Player1"
}
}
Hope that can help.