public static function units()
    {
        // Helper Class Exists
        if (isset(self::$unitConverter)) {
            return self::$unitConverter;
        }
        // Initialize Class
        self::$unitConverter = new UnitConverter();
        // Return Helper Class
        return self::$unitConverter;
    }
public static function units()
    {
        // Helper Class Exists
        if (isset(self::$unitConverter)) {
            return self::$unitConverter;
        }
        // Initialize Class
        self::$unitConverter = new UnitConverter();
        // Return Helper Class
        return self::$unitConverter;
    }
public static function units ( ) { // Helper Class Exists if ( isset ( self :: $ unitConverter ) ) { return self :: $ unitConverter ; } // Initialize Class self :: $ unitConverter = new UnitConverter ( ) ; // Return Helper Class return self :: $ unitConverter ; }
Get a singleton Unit Converter Class

@return UnitConverter
Get a singleton Unit Converter Class