public function bootstrapClass($widthBT) { if (!is_array($widthBT)) { $obj = new OObject("obj"); $obj->setWidthBT($widthBT); $widthBT = $obj->getWidthBT(); } $class = ""; foreach ($widthBT as $key => $value) { if (substr($key, 0, 1) == "w" && $value > 0) { $class .= " col-" . substr($key, 1) . "-" . $value . " "; } if (substr($key, 0, 1) == "o" && $value > 0) { $class .= " col-" . substr($key, 1) . "-offset-" . $value . " "; } } return $class; }