日期:2014-05-17 浏览次数:20591 次
<?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://www.baidu.com");
?>