Ajax response always coming up undefined

Question

Here is my JavaScript code:

$('check_username').addEvent('click', function(e) {
  var req = new Request({
    url: 'Namecheck.php?name='+$('user_name').get('value'),
    method: 'post',
    onRequest: function() { alert('Namecheck.php?name='+$('user_name').get('value')); },
    onComplete: function(response) { alert('The response is the following : ' + response); },
    onSuccess: function(txt){
      if(txt=="Success"){
        $('avail_status').set('html','Username is available.');
      }else{
        $('avail_status').set('html','Username is not available ,'+txt);
      }
    },
    onFailure: function(){
      alert("Failed!! Please try again.");
    }
  });

  req.send();
});

and my PHP code :

require_once('../include/DebugLog.class.php');
DebugLog::getInstance()->Debug('NAMECHECK : Checking name'.$_REQUEST["name"]);
$name=isset($_REQUEST["name"]) ? $_REQUEST["name"] : '';
$flag=false;
if(($name=="")||($name==null)){
  DebugLog::getInstance()->Debug('NAMECHECK : No Username specified');
  echo "No Username specified";
  exit;
}
else{
  require('../include/LoginSystem.class.php'); 
  $myObj=new LoginSystem();
  $sql="select * from client_info where binary UserName ='".$name."' AND CreatedBy=0 ";
  $result=$myObj->run_sql($sql);
  if($result!=false){
    $row = mysql_fetch_assoc($result);
    if($row['UserName']==$name){
      DebugLog::getInstance()->Debug('NAMECHECK : Name already exists !!');
      echo "Already exists!!";
      exit;
    }
    else{
      DebugLog::getInstance()->Debug('NAMECHECK : Name does not exists !!');
      echo "Success";
      exit;
    }
  }else{
    DebugLog::getInstance()->Debug('NAMECHECK : Query failed ,$sql: '.$sql);
    echo "Try Again!!";
    exit;
  }     
}

When the Ajax request is made, the PHP code is executed properly but with my JavaScript, I get a "undefined" response.

Answer 1

I have solved the problem already.

Thanks guys for you time.

Answer 2

Hi, it would be nice to post the solution you found for your pb. Cheers.