Why do i get "Null" in mysql database?

Question

Hi
Im trying to update a flash movie quiz that records names and question answers which i didnt write. The quiz works except it replaces the name with null. All the other records work fine. I have deleted out the res2 - res12 just to shorten it up, they all work well. Thanks in advance for any light you can shed on this
From Name input page of the quiz. participname is the text field input
stop();
btn1.addEventListener(MouseEvent.MOUSE_UP,function():void {
var Name:String=participname.text.toString();
gotoAndPlay(3);
From the last page of the quiz
sendData();
        function sendData(){
                var messages:URLRequest = new URLRequest("./insertresult.php")
                messages.method = URLRequestMethod.POST
                var posts:URLVariables = new URLVariables()
                posts.Name = Name
                posts.DateCurrent = dtFormatted
                posts.Res01 = res01
                messages.data = posts
                trace(posts);
                var loader:URLLoader = new URLLoader()
                loader.dataFormat = URLLoaderDataFormat.TEXT
               // loader.addEventListener(Event.COMPLETE, dataOnLoad)
                loader.load(messages)
                trace(messages);
From the insertresult.php
<?php
      //Capture data from $_POST array
    $name = $_POST['Name'];
    $date = $_POST['DateCurrent'];
    $res1 = $_POST['Res01'];
/* if(!$name )
  echo "no input using default values <br>";
  $name = 'deleteme';
      $connect = mysql_connect("mydatabase");
      mysql_select_db ("PAlogindatabase", $connect);
      $result = mysql_query("INSERT into rhymeoddity1 (name,date,res1) values ('$name','$date','$res1')");
      if($result) echo "writing=Ok&";
      else echo "writing=Error";
?>

Answer 1

It's a difference of "scope". If you go in a timeline script and init the var outside of a function it will be a "global" var, available for shared use inside functions, like this:
var myname:String = "Bob";
function myFuncA():void
     trace("I can use myname: " + myname); // traces Bob
function myFuncB():void
     trace("I can use it too: " + myname); // traces Bob
myFuncA();
myFuncB();
However, if you make the variable inside a function, it will only exist inside that function. By 'make', I mean use the keyword 'var'. Consider this example where I try to change the var myname:
var myname:String = "Bob";
function myFuncA():void
     // use 'var' and set myname
     var myname:String = "Sam";
     trace("I can use myname: " + myname); // traces Sam
function myFuncB():void
     trace("I can use it too: " + myname); // traces Bob, not Sam
myFuncA();
myFuncB();
Notice the second function when used will trace "Bob" even though myFuncA traced "Sam". The reason why is when I used the keyword 'var' inside the function myFuncA I made a brand new variable 'scoped' to the function myFuncA. Once that function ends, the variable is destroyed.
Now consider this, where I don't use var:
var myname:String = "Bob";
function myFuncA():void
     // not using 'var' so I'm accessing the global var itself
     myname = "Sam";
     trace("I can use myname: " + myname); // traces Sam
function myFuncB():void
     trace("I can use it too: " + myname); // traces Sam
myFuncA();
myFuncB();
Because I didn't re-init the var and used a variable that's global scope directly inside the function, I changed the global value successfully. Now both functions will trace "Sam".
Here's more info from Adobe on variable scope:
http://help.adobe.com/en_US/ActionScript/3.0_ProgrammingAS3/WS5b3ccc516d4fbf351e63e3d118a9 b90204-7f9d.html#WS5b3ccc516d4fbf351e63e3d118a9b90204-7f8c