using tim's idea: get a uniqid, convert it to numbers and shift the difference :) - get a uniqid - convert the chars to numbers using php.net/ord - use the 8 first numbers
(would be an alternative to rand() for 8-digits) On Tue, Mar 10, 2009 at 9:48 AM, Tim Gales <[email protected]> wrote: > chad qian wrote: > >> Hi, >> I need to generate random 8-digit numbers continuously.And no duplication >> among all those numbers.In other word,every single 8-digit number must be >> unique.How to do php programming? >> > Change your specification to 13 characters and use the function uniqid > > Uniqid is driven by the system clock -- so it's granularity is a > microsecond. > > > > > > > _______________________________________________ > New York PHP User Group Community Talk Mailing List > http://lists.nyphp.org/mailman/listinfo/talk > > http://www.nyphp.org/show_participation.php >
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