public function hclass($classes, $raw = false)
{
if (is_array($classes)) {
$classes = join(' ', $classes);
}
$classes = preg_split('/ +/', trim($classes));
$classes = join(' ', $classes);
if ($raw) {
return $classes;
} else {
return $classes ? ' class="' . htmlspecialchars($classes) . '"' : '';
}
}