PHP Security Collection

The nice thing about the Internet is that anyone can access your web site. This can also be a drawback. PHP (and the other components of LAMP) make it very easy to produce afunctional, useful website. Of course, "easy" and "secure" are orthogonal concepts. If you care about your data or your customers' data, you need to think about security. How can you keep out the bad guys? How can you prevent and, if needed, recover from errors? How will you know if things are working correctly or if someone