> I'm trying to make "shops" that sell virtual objects. They restock once > every 15 minutes. This is all set up. The problem is, I would like to > have objects in these shops with a random chance of being restocked. My > idea is to store two numbers in the restock list: chance, and outof. > (For a 1/5 chance on each restock, those values would be 1 for chance, > 5 for outof). The problem is, I need a way of generating a random > number within a certain range. I thought of going through php and > mt_rand(), but that would make for a very inefficient script. Any ideas?
MySQL has a RAND() function. Returns a random number between zero and one. Multiply it by your limit and add one to get a range. SELECT FLOOR(RAND()*5)+1 To get a random number between one and five. To make an update random, try something like this: UPDATE yourtable SET ... WHERE FLOOR(RAND()*5)+1 = 1 AND ... ---John Holmes... -- PHP Database Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
