I'm new to PCI and would like to use Stripe as my payment gateway. They don't charge monthly fees, and have a good php system to send funds from site to Stripe. Right now I know I can allow customers to put in their card information, use Stripe's framework, and allow the card information disappear. That's fine but my question is:
If I want to store card information in a database for using in Stripe's PHP framework, how do I learn to do it legally?