一个php短网址的生成代码(仿微博短网址)_php技巧

 
 
 
 
 
 
 
 
 
 
header("Content-Type:text/html;charset=UTF-8"); 
function base62($x){ 
$show = ''; 
while($x>0){ 
$s = $x % 62; 
if ($s > 35){ 
$s = chr($s + 61); 
}else if ($s > 5 && $S<=35){ 
$s = chr($s + 55); 
} www.gxlcms.com 
$show .= $s; 
$x = floor($x/62); 
} 
return $show; 
} 
//生成短网址 
function url_short($url){ 
$url = crc32($url); 
$result = sprintf("%u",$url); 
return base62($result); 
} 

echo ("生成短网址为：".url_short($_POST['url'])."");