The NetBeans IDE runs virtually anywhere given the fact that a JVM is installed. It is developed in Java. You can download it here: http://netbeans.org/downloads
CodeIgniter is a powerful PHP framework with a very small footprint, built for PHP coders who need a simple and elegant toolkit to create full-featured web applications. If you’re a developer who lives in the real world of shared hosting accounts and clients with deadlines, and if you’re tired of ponderously large and thoroughly undocumented frameworks, then CodeIgniter might be a good fit.