征集常用的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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