生成短网址

weixin_30617737

于 2011-11-04 14:24:00 发布

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CC 4.0 BY-SA版权

文章标签： php

原文链接：http://www.cnblogs.com/imrz/archive/2011/11/04/2236190.html

<?php
function base62($x)
{
$show = '';
while($x > 0) {
$s = $x % 62;
if ($s > 35) {
$s = chr($s+61);            
        } elseif ($s > 9 && $s <=35) {
$s = chr($s + 55);
        }
$show .= $s;
$x = floor($x/62);
    }
return $show;    
}

function urlShort($url)
{
$url = crc32($url);
$result = sprintf("%u", $url);
return base62($result);
}

echo urlShort("http://code.google.com/p/rfphp4zf");