Please help me write some code

Please help me write a few codes. I need to display a random number (5 digits) on a page)

This number is changed once a day. it will change after a.m., and the refresh will not change.

Reply to discussion (solution)

Session_start ();
If (date ("% h % s", time () = "00:00 ")
{
$ _ SESSION ['num'] = rand (Random, 99999 );
}
Echo $ _ SESSION ['num'];
?>

If the same seed is used, a random number with the same sub-Ang is generated.

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

Session_start ();
If (date ("% h % s", time () = "00:00 ")
{
$ _ SESSION ['num'] = rand (Random, 99999 );
}
Echo $ _ SESSION ['num'];
?>

It seems that the landlord does not need to divide users, as long as the website uses the same one on the previous day.

If the same seed is used, a random number with the same sub-Ang is generated.

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

Moderator's positive solution

If the same seed is used, a random number with the same sub-Ang is generated.

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

When using this method, you must set the time zone. Otherwise, the time zone may not be changed by, but by other time points.
Date_default_timezone_set ('Asia/Shanghai ');