fuelphp / common

	 * @param   string  $encoding  default UTF-8

	 * @return  string

	 */

	public function lcfirst($str, $encoding = null)

	{

		$encoding or $encoding = $this->encoding;

		return function_exists('mb_strtolower')

			? mb_strtolower(mb_substr($str, 0, 1, $encoding), $encoding).

				mb_substr($str, 1, mb_strlen($str, $encoding), $encoding)

			: lcfirst($str);

	}

	/**

	 * ucfirst

	 * @param   string $encoding  default UTF-8

	 * @return   string

	 */

	public function ucfirst($str, $encoding = null)

	{

		$encoding or $encoding = $this->encoding;

		return function_exists('mb_strtoupper')

			? mb_strtoupper(mb_substr($str, 0, 1, $encoding), $encoding).

				mb_substr($str, 1, mb_strlen($str, $encoding), $encoding)

			: ucfirst($str);

	}

	/**

	 * ucwords