Any city and county or county having or that may hereafter erect a joint city and county workhouse, or county workhouse, may receive as inmates of such joint city and county workhouse, or county workhouse, persons sentenced thereto as provided by law, from counties and municipal corporations having no workhouse, upon such terms and for such length of time as may be agreed upon by the commissioners of such county or the council of such municipal corporation, and the board of such joint city and county workhouse directors, or county workhouse directors: Provided, That such convicts so received shall, in all respects, be and remain under control of the directors of such workhouse, and subject to the rules, regulations and discipline of such workhouse the same as other convicts therein detained.