Re: please help.. serial number generator

I need to create some kind of 10 digits serial number where I can generate and check that it is valid. Sort of like a checksum.. "Jj Harrison" <webmaster@tececo.com> wrote in message news:20020730085118.73595.qmail@pb1.pair.com... > if u are looking for a simple random string try this php: > > echo md5(time()); > > or md5() a random number your choice. > > md5() genetates a one way non-reversable hash. which could be kept in a db. > > here is an example of the md5 hash of my library card number: > 11d560821fb027c227d837df53a5a73a > > md5() is often used to store passwords and make them non-viewable. > > if you are just looking for a unique number an auto-increment coloumn in > mysql or what ever should do it. > > > -- > JJ Harrison > webmaster@tececo.com > www.tececo.com > > "Rainydays Sunshine" <rainydays_sunshine@hotmail.com> wrote in message > news:20020730070037.88410.qmail@pb1.pair.com... > > Any ideas how to generate a unique serial number that you can check that > > it's valid.. > > > > Thanks... > > > > > >