With PHP's popularity continuing to rise in the IBM i world, it's important that you program with security in mind. An article from eWeek lays the case out nicely, citing a study done by Fortify Software, which examined several popular PHP projects and made a list of the 10 most common vulnerabilities in PHP code. *Read more... [1]
Links:
[1] http://blogs.systeminetwork.com/isnblogs/industrybits/2009/08/must_read_avoid_security_mista_1.html