public static function has(string $category, string $setting) : bool
    {
        return isset(self::$settings[$category]) && isset(self::$settings[$category][$setting]);
    }
public static function has(string $category, string $setting) : bool
    {
        return isset(self::$settings[$category]) && isset(self::$settings[$category][$setting]);
    }
public static function has ( string $ category , string $ setting ) : bool { return isset ( self :: $ settings [ $ category ] ) && isset ( self :: $ settings [ $ category ] [ $ setting ] ) ; }
Gets whether or not a setting has a value

@param string $category The category whose setting we're checking
@param string $setting The setting to check for
@return bool True if the setting exists, otherwise false
Gets whether or not a setting has a value