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PHP Security, Part 2 (O'ReillyNet)

John Coggeshall continues his O'Reilly series on PHP security with part two. "Welcome back to PHP Foundations. In my previous article, I continued my mini-series on best practices in PHP by introducing you to some of the ways that security can be compromised in your PHP scripts. This article continues that discussion with more examples of potential security holes and the tools and methods you can use to help plug them. Today I'll start by talking about one of the more critical potential security holes in PHP development writing scripts that make calls to the underlying operating system."
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