I was just wondering if anyone has read Larry Ullman's book "PHP and MySQL for dynamic websites and if there are any bad practices in it. Anything that isn't good from a security point of view, usability wise, etc. I know usability is basically an XHTML thing, but as php generates it I think it's ok to ask about it in regards to this book. All things I have learned that are web related so far I have tried to do using standards, and good practices, so I just wanted to ask.