<?php
02 function code62($x) {
03 $show = '';
04 while($x > 0) {
05 $s = $x % 62;
06 if ($s > 35) {
07 $s = chr($s+61);
08 } elseif ($s > 9 && $s <=35) {
09 $s = chr($s + 55);
10 }
11 $show .= $s;
12 $x = floor($x/62);
13 }
14 return $show;
15 }
16
17 function shorturl($url) {
18 $url = crc32($url);
19 $result = sprintf("%u", $url);
20 //return $url;
21 //return $result;
22 return code62($result);
23 }
24
25 echo shorturl("此处为网址");
26 ?>