Add different ids for dynamically generated elements

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PHP

HTML5

I had already asked for help to resolve this issue. But I have got an advise to describe my issue in more details for increasing chances to get an answer. And I will try to do it. I have a checkout page in my website. There are 3 payment methods (Bank transfer, PayPal, Hello).(please see the image_checkout1). "Hello" is the payment method added by myself. I need to stylize using CSS, Hello payment method. I found in the Dev. dashboard html code which creates these payment methods in a browser.(please see the image_checkout2). After that I found php file, below is code which dynamically creates these label tags(if I understand this process correctly).

//13.getRadioPaymode
 function getRadioPaymode($var, $default, $disabled, $type){
   $app = JFactory::getApplication();
   $db  = JFactory::getDbo();
   $html = '';
   $gatewayType = 'TRUE';
   $i = 0;

   $option = '';
   if($disabled == 1)
     $option = 'disabled';

   if($type == 'deposit')
     $gatewayType = 'is_deposit=1';
   if($type == 'subscription')
     $gatewayType = 'is_subscription=1';

   $query = "SELECT gwcode AS value, gateway_name AS text FROM #__jblance_paymode ".
        "WHERE published=1 AND ".$gatewayType." ".
        "ORDER BY ordering";
   $db->setQuery($query);
   $paymodes = $db->loadObjectList();

   if(empty($paymodes)){
     $html = '<p class="alert alert-error">'.JText::_('COM_JBLANCE_NO_PAYMENT_GATEWAY_ENABLED').'</p>';
     return $html;
   }

   foreach($paymodes as $item){
     $checked = $img = '';
     $imgPath = "components/com_jblance/gateways/images/$item->value.png";

     //keep the first element checked
     if(++$i == 1) $checked="checked";

     if(JFile::exists($imgPath))
       $img = '<img class="img-polaroid" title="" src="'.$imgPath.'" alt="'.$item->text.'" style="margin-left:10px; width:100px; height:30px;">';


 $html .=  "\n\t".
           '<label class="radio"  style="min-height:42px;">'. "\n".
           '<input type="radio" style="float:none;" name="'.$var.'" id="'.$var.'" value="'.$item->value.'" '.$checked.'>'.
           $img.
           '<span style="margin-left: 10px;">'.JText::_($item->text).'</span>'.
           '</label>';


    }


  $html .= "\n";
   return $html;


   }

Below is a part of code of php file which is rendering the page with the issue. And in this code is function which added above.

<div class="sp10"> </div>
    <div id="div-gateway" class="well well-small white">
      <div class="control-group">
        <label class="control-label" for="delivery"><?php echo JText::_('COM_JBLANCE_PAYMENT'); ?>:</label>
        <div class="controls">
          <?php 
          $list_paymode = $model->getRadioPaymode('gateway', '', '', 'subscription');
          echo $list_paymode;
          var_dump($list_paymode);
          ?>
        </div>
      </div>
    </div>

What I have tried:

After that as I asked for help on this site in the first time. I have got a solution. I have inserted a code from this solution. This is my code after adding the code from the solution

$idlist = array("ida", "idb", "idc");
     foreach($idlist as $id){
     $html .=  "\n\t".

          '<label id="' . $id . '" class="radio" style="min-height:42px;">'. "\n".

           '<input type="radio" style="float:none;" name="'.$var.'" id="'.$var.'" value="'.$item->value.'" '.$checked.'>'.
           $img.
           '<span style="margin-left: 10px;">'.JText::_($item->text).'</span>'.

             '</label>';

     }

   }

   $html .= "\n";
   return $html;

Ids were added into the label tags, but now I have 9 payment methods instead of 3 on the page (3 Bank transfer, 3 PayPal, 3 Hello)(please see the checkout_image3). I am new to php, I am just creating websites using CMS. Please help me to resolve this issue.