How to profile MySQL

How do I profile a MySQL database. I want to see all the SQL being run against a database.

I know you can do this:

• set profiling=1;
• Run your slow query (eg SELECT * FROM messages WHERE fromaddress='xxx';
• SHOW PROFILES;

But this seem to only apply to stuff run on the command line, I want to see the results from running a website.

You want the query log - but obviously doing this on a heavy production server could be... unwise.