Earthweb.com: On the Security of PHP, Part 1. Nowhere near as good as the other article ("A Study in Scarlet") I've seen on this topic, but a decent reminder to be careful.
That other weblog article I pointed to is an example of my poor early weblogging... one post for one topic... I hope I've since learned to be more careful. I couldn't find where I had referred to the article before because I didn't include the word "security" in the description. Google found the original article for me though when I searched for "php security".
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