PHP POST through $_REQUEST with WEBBUILD

Hi, i have app, that using php to store and use data from MySQL. All working fine in PC build and in editor play mode. But when i'm using Webbuild - application give nosing to PHP script. That is seem like webbuild can't give POST data, or i do something wrong. Anyway, there's C#:

  public IEnumerator SendDataToWeb(string answer, string id){
               if (coroutineInProcess == false){
                  coroutineInProcess = true;
                  WWWForm form = new WWWForm();
                  form.AddField( "UserID", id);
                  form.AddField( "Answer", answer );
          
          //wwwSendData get his value in diferent part of code
                  WWW download = new WWW( wwwSendData, form );
                  yield return download;        
                  if(!string.IsNullOrEmpty(download.error))
  {
                      Debug.Log ( "Error downloading: " + download.error );
                  } else {
                      Debug.Log ( download.text );
                  }
                  coroutineInProcess = false;
               }
              }

And there's php:

 <?php
 $userID = $_REQUEST['UserID'];
 $answer = $_REQUEST['Answer'];
 
 
 $host = 'localhost'; 
 $user = 'testUser'; 
 $password = '123qweasd'; 
 $db = 'testdb'; 
 $table = 'highscores'; 
 
 mysql_connect($host, $user, $password) or die(mysql_error()); 
 mysql_select_db($db); 
 
 $password = md5($password); 
 
 
 mysql_query("DELETE FROM `answers` WHERE  TO_DAYS(NOW())- TO_DAYS(dateValue) = 0 AND ID = '{$userID}' ") or die (mysql_error());
 
 
 mysql_query("INSERT INTO `answers` (ID, answer) VALUES ('{$userID}', '{$answer}')") or die (mysql_error());
 
 echo "Done";
 
 ?>

 

I adeed crossdomain.xml in root of my site. I Test all this stuff on denwer. Repeat: all working, exept post data from web build. In PC build and editor play mode all work without problems.

Sorry for bad knowlege of English.