Flex 2.0 with connection to mysql database using php

Hi,

I have created a little application in Flex using FlexBuilder 2.0 for getting some data from a mysql server.

I use a php script for requesting the Mysql server.

Here is the mxml script :

<mx:Script>
    <![CDATA[
     function logIn():void
     {
        userRequest.send();   
     }
 
     function userCount(event:Object):void
      {   
        //mx.controls.Alert.show(event.result.doc.user, 'Callback');
        user.text = event.result.doc.user;
     }
     
     function httpError(event:Object):void
      {   
        mx.controls.Alert.show(event.toString(), 'Callback');
     }     
     ]]>
    </mx:Script>
       
    <mx:Form width="200" height="255" id="form1">
        <mx:Panel width="128" height="143" layout="absolute" title="Test" id="panel1">
            <mx:Text x="0" y="0" text="# user" width="108" textAlign="center"/>
            <mx:TextInput x="25" y="20" width="58" height="20" id="user" editable="true" enabled="true" fontSize="10" color="#ff0000" textAlign="center" fontWeight="bold"/>
        </mx:Panel>
        <mx:Button label="Count" click="logIn()" id="button1"/>
    </mx:Form>
<mx:HTTPService id="userRequest" url="functions.php" useProxy="false" method="POST" showBusyCursor="true" result="userCount(event)" fault="httpError(event.fault)"/>
</mx:Application>

 I have a "Count" button. When I click on the button, a request is send to the mysql server. The TextInput "user" is updated with the number of user found.

here is the php script in the functions.php:

<?php

?>

The script works fine only the first time I have open the browser.

When I make change in the mysql server (I add a new user) and I click on the "Count" button, the result is the same as previous...

If a close the browser and open a new one, the result is good.

So, is my method bad for querying the mysql database ? what is wrong ? Is something in the browser cache ?

Thanks in advance

Olivier