可以自定义产生什么字符串以及多长
[PHP]代码
function random($length)
{
$hash = ;
$chars = ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz;
$max = strlen($chars) - 1;
mt_srand((double)microtime() * 1000000);
for($i = 0; $i
{
$hash .= $chars[mt_rand(0, $max)];
}
return $hash;
}