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Pro PHP Security: From Application Security Principles to the Implementation of XSS Defenses, Second Edition
book

Pro PHP Security: From Application Security Principles to the Implementation of XSS Defenses, Second Edition

by Chris Snyder, Michael Southwell, Thomas Myer
December 2010
Intermediate to advanced
363 pages
12h 21m
English
Apress
Content preview from Pro PHP Security: From Application Security Principles to the Implementation of XSS Defenses, Second Edition

Why Absolute Computer Security Is Impossible

As PHP programmers, we are almost completely isolated from binary code and memory management, so the following explanation may seem pretty abstract. But it's important to remember that everything we do comes down to the 1s and 0s, the binary digits, the bits, the voltages across a transistor, that are the language of the CPU. And it's especially important to remember that your PHP code does not exist in a vacuum but is compiled and executed by the kernel as part of a complex system.

This is a 1. And this is a 1. These 1s might be stored in different locations of a computer's memory, but when presented to the processor they are absolutely identical. There is no way to tell whether one was created before ...

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Publisher Resources

ISBN: 9781430233183Purchase book