如何将actionscript3.0与php通信？

我正试图将数据从actionscript发送到php文件。但无法与php文件通信。我收到如下错误：“未定义索引：C:\xampp\htdocs\As\basics.php第2行中的用户名”。 我的代码如下。 /*********动作脚本******************/

 var str:String = "hi";
 var myscore = 0;
 submit.addEventListener(MouseEvent.CLICK, fl_ClickToGoToAndStopAtFrame_7);

 function fl_ClickToGoToAndStopAtFrame_7(event: MouseEvent): void {
 var myrequest:URLRequest = new URLRequest("http://localhost/As/basics.php");
 myrequest.method = URLRequestMethod.POST;
 var variables:URLVariables = new URLVariables();
 variables.username = str;
 variables.score = myscore;
 myrequest.data = variables;
 var loader:URLLoader = new URLLoader();
 loader.dataFormat = URLLoaderDataFormat.VARIABLES;
 loader.addEventListener(Event.COMPLETE, dataOnLoad);
 loader.load(myrequest);
}
 function dataOnLoad(evt:Event)
 {
   submit.alpha=100;
     //status is a custom flag passed from back-end
  }

   <?php
     $name = $_POST['username'];
    echo "Result:<input type='text' value='$name'>";
    echo "<param name='movie' value='cmphp.swf' />";
     echo "<object type='application/x-shockwave-flash' data='cmphp.swf'width='1024'  height='500'>";
    echo "<param name='movie' value='FlashVars_AS2.swf' />";

 ?>

/*********php代码**********************/

 var str:String = "hi";
 var myscore = 0;
 submit.addEventListener(MouseEvent.CLICK, fl_ClickToGoToAndStopAtFrame_7);

 function fl_ClickToGoToAndStopAtFrame_7(event: MouseEvent): void {
 var myrequest:URLRequest = new URLRequest("http://localhost/As/basics.php");
 myrequest.method = URLRequestMethod.POST;
 var variables:URLVariables = new URLVariables();
 variables.username = str;
 variables.score = myscore;
 myrequest.data = variables;
 var loader:URLLoader = new URLLoader();
 loader.dataFormat = URLLoaderDataFormat.VARIABLES;
 loader.addEventListener(Event.COMPLETE, dataOnLoad);
 loader.load(myrequest);
}
 function dataOnLoad(evt:Event)
 {
   submit.alpha=100;
     //status is a custom flag passed from back-end
  }

   <?php
     $name = $_POST['username'];
    echo "Result:<input type='text' value='$name'>";
    echo "<param name='movie' value='cmphp.swf' />";
     echo "<object type='application/x-shockwave-flash' data='cmphp.swf'width='1024'  height='500'>";
    echo "<param name='movie' value='FlashVars_AS2.swf' />";

 ?>

---

当您从AS3发送请求时，它是否填充了您的
$\u POST
数组？另外，您还可以阅读Apache日志，了解您作为请求收到的数据是什么？最有可能的是，
username
没有作为顶级层次结构项嵌入到URLRequest变量中。我不知道这些事情。要将数据从actionscript发送到php文件，我必须遵循哪些步骤？我想在将url变量加载到加载程序时，它会嵌入到URLRequest中。