对于日常工作中整理出来的某些功能做个简单梳理:
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1. 短链生成算法
function code62($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 $show;} function shorturl($url) { $url = crc32($url); $result = sprintf("%u", $url); //return $url; //return $result; return code62($result);}br( shorturl("http://pai.game.weibo.com/love/") );br( shorturl("http://www.oschina.net/code/snippet_878945_22499") );登入後複製
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