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请高手帮忙写几句代码

WBOY
Release： 2016-06-23 14:15:21
Original
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我需要在一个页面上显示一个随机数（5位）

要求，这个数字每天变一次，过了凌晨12点就变一下，  刷新不变。


回复讨论(解决方案)

session_start();
if (date("%h %s",time())=="00:00")
{
   $_SESSION['num']=rand(10000,99999);
}
echo $_SESSION['num'];
?>

相同的种子，就产生子昂同的随机数 

srand(date('Ymd'));echo rand(10000, 99999);
Copy after login
Copy after login
Copy after login

session_start();
if (date("%h %s",time())=="00:00")
{
$_SESSION['num']=rand(10000,99999);
}
echo $_SESSION['num'];
?>

似乎楼主不需要对用户分，好像只要网站上一天用同一个就行了

相同的种子，就产生子昂同的随机数 

srand(date('Ymd'));echo rand(10000, 99999);
Copy after login
Copy after login
Copy after login

版主正解

相同的种子，就产生子昂同的随机数 

srand(date('Ymd'));echo rand(10000, 99999);
Copy after login
Copy after login
Copy after login


使用版主的这个方法，一定要注意设置时区，否则可能不是0点变，而是其他时间点变。
date_default_timezone_set(‘Asia/Shanghai');

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请高手帮忙写几句代码
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