Re: Normalized Numbers

Arpad Ray wrote: > Have you checked out the PEAR Validate packages? > http://pear.php.net/package/Validate_ISPN in particular might > help you > along ;) I figured that someone had probably done this before. I wanted to do it myself because I figured it's a nice simple exercise to get my feet wet, and it's something I will probably use (unlike something from a book). > And BTW, most servers are set up to display php files renamed to .phps > with syntax highlighting, so give that a try instead of .php.txt next time. This is good to know, I've tried it on the senecal.ca server a Microsoft IIS) and it doesn't seem to work. I think I have some space on another server, I'll have to dig up the username and password and give it a try. > Regards, > > Arpad > > Brian P. Giroux wrote: >> I am just learning PHP and as a practical exercise I've been working on >> a set of functions to process and manipulate what I call "normalized >> number" (ISBNs, EANs, UPCs, etc...) >> >> My ultimate goal is to create a normnum class and child classes for the >> different types of numbers. >> >> Because of my line of work, I am mostly interested in ISBN-10s, >> ISBN-13s, EANs and UPCs, but it can also be expanded to credit card >> numbers, Canadian Social Insurance Numbers, and many more. >> >> So far I have functions to validate ISBN-10s and EANs although I've run >> into a bit of a wall with the digit_sum function as explained in the B: >> section of that functions header comments. >> >> If anyone can help me out with that or provide any other advice about >> the rest of it, I'd be grateful. >> >> The file can be found at .ì >> ÒÏÿÓµ£7*WØïÊhttp://www.senecal.ca/normnums.php.txt >> >> Thanks. >> -- Brian P. Giroux