What's the best way to implement the 'Remember Me' functionality in PHP?


I've been asked to do a 'Remember Me' similar to Yahoo! where they keep you logged in for 2 weeks.  What would be the best way to implement this?

My boss doesn't want our clients to have to log in 'all the time' he wants them to point their browser to our application and have them go directly to their own private account.
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use cookies.

when the user authenticates, have it write a cookie with the users ID.

then have each page check for this cookie, if the cookie exists then it will give them the authentication needed.

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