public static function underscoreToCamelcase($sString, $bLowerFirst = true)
    {
        $sString = explode('_', $sString);
        $sString = array_map('strtolower', $sString);
        $sString = array_map('ucfirst', $sString);
        $sString = implode($sString);
        $sString = $bLowerFirst ? lcfirst($sString) : $sString;
        return $sString;
    }