Anyone have some basic security tips for PHP-programmers?

["Matthews, Chris" <CMatthews () MAIL co washoe nv us>]

Good Morning (at least here in Nevada)

I am a graphics guy by trade, who happens to have some proficiency with
code.

Since my PHP knowledge is pretty much self-taught, however, I am certain
that I'm probably doing some hack-prone stuff.

Anyone have any hints for good PHP practices  (Looking for kind of a "This
is one of the most common PHP security flaws" kind of thing)?

Chris Matthews
E-Government Information Officer
Community Relations, Washoe County
http://www.co.washoe.nv.us
775.328.3719