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Posted by Kyriacos Sakkas on 04/08/05 17:41
first I would suggest you get the largest value from the auto increment
field (maybe use last_insert_id()). Then use rand(1,$cno_max) three
times to get three random cno numbers, then "select ... from ... where
cno=$val1 or cno=$val2 or cno=$val3" should return the three values.
rand() can also be directly in the sql statement.
Also manual suggests using mt_rand instead of rand for better performance.
K.Sakkas
Ryan A wrote:
> Hey,
> need some advise on what would be the best way to do this:
>
> I have a table with these fields:
> cno (just a auto_increment field),
> username,
> sex (2 values: man, woman),
> has_pic (0=no,1=yes),
> pic_name
>
> I need to randomly get 3 womens pictures and one guys picture from the above
> table...
> I know I need to use rand() and i thought maybe shuffle() but am getting a
> bit lost in the logic part...help please?
>
> Thanks,
> Ryan
>
>
>
--
Kyriacos Sakkas Netsmart Development Team
Tel: + 357 22 452565 Fax: + 357 22 452566
kyriacos(at)netsmart.com.cy http://www.netsmart.com.cy
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