如何从mysql中随机地从10,000个中选择最多10个数据，即使用php一次选择一个？

Question

Goodday all, please am developing an online game like 'who want to be a millionaire'. I have 10,000 questions with answers, in mysql database and I want the players to answer 10 shufled questions but one at a time with timer.At the end of the ten questions the page should echo number of questions answered correctly. Mysql table look does:

question_id  question  optiona  optionb  optionc  optiond  answer

I have tried the following but no limitation to the number of questions

I will appreciate it, if anyone could reply soonest.

Answer 1

You can use mysql order by rand function

Eg: General Sample

Answer 2

If the table becomes too big there is a faster way to do it:

http://www.dasprids.de/blog/2008/06/07/fetching-random-rows-of-mysql-efficiently