PHPCallGraph generates static call graphs for PHP source code using the CodeAnalyzer of the InstantSVC project and the DOT tool. The graphs can be leveraged to gain a better understanding of large software systems or even to debunk design flaws in them.
The BlazeFramework is a Java like Framework which provides a nice API for developers. It offers developers a real OOP feeling in PHP like in Java. It's an event-based MVC web framework which uses XML for view definitions and the navigationsystem.
If you like to use the Twick.it API you should take a look at this wrappers. By simply calling some static methods you can read data from the API and don't have to care about all the REST stuff like sending HTTP request or parsing XML data.
Widgetize is a php micro-framework that helps developing almost-static web pages. It's goal to allow almost completely declarative website building, so very little php knowledge is required.
Smart Publisher is a web-based application which helps you to publish a static or dynamic website on the internet. Compare files and database (MySQL) between local and remote systems. Uploading only the difference between the two systems.
Arasphp is a simple and flexible web development framework for non-gigantic sites. Following the MVC pattern, provides a lot of features: URL mapper, fully-featured models, search engine, paginator and static content controller, relationships and more.
'genpasta' is a simple command-line tool written in PHP to generate static web pages from a source tree containing HTML fragments, which are annotated with special directives.
NORS 4 is a complex redaction system (CMS). Features: WYSIWYG editor, arcticles publishing, comments, web pages, categories, RSS channels, static URL generating, article searching...
DynaHTML combines the advantages of static HTML pages with the flexibility of dynamic pages that employ server side scripting like php. This goal is reached using static HTML with inline script code that is converted to HTML on manual triggering.
dothelp is a MySQL-PHP generic documentation editor and viewer for applications and OOP classes with multi-language support. Help files can be viewed dynamically or exported to static content in a number of styles.
A small testing framework for PHP based off some of .net's nUnit contracts. It uses a static assertion class rather than protects/public methods on an extended class.
The Open Code Quality Project offers Static Code Analyses as an free Online-Service for Open Source Code. Simply send your code, start the scan, receive the results.