https://www.webmaster-forums.net/crss/node/1019541 en https://www.webmaster-forums.net/server-side-scripting/instant-pin-calling-cards#comment-1119091 <p>I have done something similar with Pre-Paid Credit Cards.<br /> I used a mod 10 calculation to generate the numbers. </p> <p>I created cards and pins on the fly and inserted them into the database.</p> <p>Hope this helps.</p> Tue, 19 Nov 2002 21:24:24 +0000 mycoolross comment 1119091 at https://www.webmaster-forums.net https://www.webmaster-forums.net/server-side-scripting/instant-pin-calling-cards#comment-1118343 <p>heya, ive never sold calling cards so im not sure how it works. i assume you have a list of numbers to sell, so when someone purchases successfully assign a number to that customer and send it to them.</p> <p>probably not the answer you wanted, but im not exactly sure if thats what youre asking.</p> Wed, 13 Nov 2002 04:01:21 +0000 ROB comment 1118343 at https://www.webmaster-forums.net