This presentation: http://www.sklar.com/talks/nyphp-security]]>

PHP Manual - Chapter 5 ("Security"): http://www.php.net/security]]>

Programming PHP]]> - Chapter 8 ("Security")

Open Web Application Security Project: http://www.owasp.org]]>

PHP and the OWASP Top Ten: http://www.sklar.com/page/article/owasp-top-ten]]>

PHP Cookbook]]> Recipes:

Validating Data: 9.7, 14.3

XSS: 8.8, 9.8

Command Injection: 10.9, 18.20