$returnHtml = "<div class='form-group field-users-created_at required'>";
for($i = 0; $i < count($items); $i++){
$returnHtml .= Html::beginTag('label', $labelOptions).$items[$i].Html::Tag('input','',$options)."<span></span>".Html::endTag('label');
}
$returnHtml .= "<span class='help-block'></span></div>";
return $returnHtml;