收集常用的PHP简单代码

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") );

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