NYCPHP Meetup

[Fernando Gabrieli]

the easiest:

$isInUse = 0 ;
while ($isInUse == 0) {
 $yourNumber = rand(0,9) . rand(0,9) . rand(0,9) .... (8 times)

 /* check here if $yourNumber is already in use and save the value in
$isInUse */
}

without saving the previous you will never be sure if you have duplicates


best,
fernando


On Mon, Mar 9, 2009 at 10:56 PM, chad qian <nynj.tech at hotmail.com> 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?
>
> Thanks a lots!
>
> chad
>
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