src/Language.php
public static function getCode($name = 'default')
    {
        if ($name == 'default') {
            $name = self::getName();
        }

        return self::codes([$name])[$name];
    }
public static function getCode($name = 'default')
    {
        if ($name == 'default') {
            $name = self::getName();
        }

        return self::codes([$name])[$name];
    }
Returns the language code.

@param string $name

@return string