Php url Shortening code (generating short URLs) _ PHP Tutorial

Shorten the php url code (generate a short URL ). The short website is now used more and more jump websites will be generated, such as the original Weibo also has this function, next, I would like to recommend a PHP URL Shortening code. each URL uses 6 characters to replace the short url. Currently, many jump websites are generated, this function is also available on weibo. I would like to recommend a PHP URL Shortening code for you.

Each URL is replaced by 6 characters, and (32 ^ 6) can have up to 1,073,741,824 short URLs. Of course, you can also record more detailed information, such as access records and creation time. If it is not enough, you can delete it for a long time.

The code is as follows:

Function compute URL ($ input ){ $ Base32 = array ( 'A', 'B', 'C', 'D', 'e', 'e', 'F', 'G', 'H ', 'I', 'J', 'K', 'L', 'M', 'n', 'O', 'P ', 'Q', 'R', 'S', 'T', 'u', 'V', 'W', 'X ', 'Y', 'z', '0', '1', '2', '3', '4', '5' ); $ Hex = md5 ($ input ); $ HexLen = strlen ($ hex ); $ SubHexLen = $ hexLen/8; $ Output = array (); For ($ I = 0; $ I <$ subHexLen; $ I ++ ){ $ SubHex = substr ($ hex, $ I * 8, 8 ); $ Int = 0x3FFFFFFF & (1 * ('0x '. $ subHex )); $ Out = ''; For ($ j = 0; $ j <6; $ j ++ ){ $ Val = 0x0000001F & $ int; $ Out. = $ base32 [$ val]; $ Int = $ int> 5; } $ Output [] = $ out; } Return $ output; } Sample code to test/use the above function: $ Input = 'http: // www. bKjia. c0m/1 '; $ Output = response URL ($ input ); Echo "Input: $ inputn "; Echo "Output: {$ output [0]} n "; Echo "{$ output [1]} n "; Echo "{$ output [2]} n "; Echo "{$ output [3]} n "; Echo "n "; $ Input = 'http: // www. bKjia. c0m/2 '; $ Output = response URL ($ input ); Echo "Input: $ inputn "; Echo "Output: {$ output [0]} n "; Echo "{$ output [1]} n "; Echo "{$ output [2]} n "; Echo "{$ output [3]} n "; Echo "n "; Output: Http://www.bKjia. c0m/1 Output: h0xg4r Bdr3tw Osk2d3 4 azfqa Http://www.bKjia. c0m/2 Output: tm5kxb Ceoj2s Yw3dvl Nrmrxl

Each URL is replaced by 6 characters...