/**
	 * getMemoryLimit allow to get the memory limit in octet
	 *
	 * @since 1.4.5.0
	 * @return int the memory limit value in octet
	 */
	public static function getMemoryLimit()
	{
		$memory_limit = @ini_get('memory_limit');

		return Tools::getOctets($memory_limit);
	}

	/**
	 * getOctet allow to gets the value of a configuration option in octet
	 *
	 * @since 1.5.0
	 * @return int the value of a configuration option in octet
	 */
	public static function getOctets($option)
	{
		if (preg_match('/[0-9]+k/i', $option))
			return 1024 * (int)$option;

		if (preg_match('/[0-9]+m/i', $option))
			return 1024 * 1024 * (int)$option;

		if (preg_match('/[0-9]+g/i', $option))
			return 1024 * 1024 * 1024 * (int)$option;

		return $option;
	}