Giving users account access to for a certain amount of time?
<p>I am working on an website where users will have to pay a small fee to create an account, and having an account will give them access to all of the features of the website for a certain amount of time, lets say 6 months.</p>

<p>Right now, I am using php to create user accounts using a mysql database to store user account info, and users can freely login/out for free, for an unlimited amount of time. </p>

<p>My question is, how would I go about setting a time limit on every account created, and once expired, give users the option to re-new their memebership?</p>
