PHP random n. problem?
| From: | Jacek | Date: | Fri, 14 Jul 2000 17:46:34 +0000 |
| Subject: | PHP random n. problem? | ||
| Groups: | php.general | ||
| Request: | Send a blank email to php-general+get-6680@lists.php.net to get a copy of this message | ||
Are there any known problems with generating random numbers in PHP?
I'm using php 4.0.1pl2 on RH 6.2.
I installed the banner script phpAds - which works fine, with one
exception: random banner selection seems not to be very "random".
Instead of each banner having the same probability, and thus - periodity
of display, some banners get displayed very often, whereas others don't
get displayed at all!
All banners belong to the same group - so they really SHOULD get displayed
equally often! I suspect some major random number generator bug - if I
change the banners database (change order, delete and put back again
etc.) - different banners "dominate' while some other banners get
'discriminated'.
...or have done something wrong with the phpAds itself?
Any clues?
Jacek Juda