vTemplate is a PHP class that is intended to make splitting PHP from HTML a simple and natural task. It has easily understandable syntax that is much easier to use than other template classes. It compiles a template into native PHP code using one PCRE call, thus the parsing is extremely fast. It also has powerful caching and debugging classes to extend the functionality.
Kiwa is a Web-based, object-oriented development and run-time environment. The goal of this project is to allow site administrators to graphically design their site's businness workflows (XML automats). It uses a template system to display pages, and offers easily extendable object libraries that can be plugged as cartridges.
Turck MMCache is a free PHP accelerator, optimizer, encoder, and dynamic content cache. It increases performance of PHP scripts by caching them in a compiled state, so that the overhead of compiling is almost completely eliminated. It also uses some optimizations for speeding up PHP scripts' execution. It typically reduces server load and increases the speed of PHP code by 1-10 times. It is tested with PHP 4.1.0-4.3.3, and Apache 1.3 and 2.0 under Linux and Windows.
MidCOM, the Midgard Components Framework, is an MVC framework for the Midgard persistent storage platform. It provides mechanisms for building a Web site using components without much need for writing code to glue all this together. The administration site gets built automatically by using those components. Goodies like a caching engine and sub-requests make site building even easier.
Xapian is a search engine library, scalable to collections containing hundreds of millions of documents. It's written in C++ with bindings for Perl, Python, PHP, Java, Tcl, C#, Ruby, and Lua. It is a highly adaptable toolkit that allows developers to easily add advanced indexing and search facilities to their own applications. It supports the Probabilistic Information Retrieval model and also a rich set of boolean query operators. Omega is a Web search application built upon the Xapian library. It can index a Web server's document tree (including HTML, PDF, OpenOffice, MS Word/Excel/Powerpoint/Works, WordPerfect, RTF, PS, etc.), or data exported from arbitrary sources (e.g. SQL databases).
KTML is a browser-based WYSIWYG HTML editor that facilitates easy content formatting using its advanced table and image manipulation features. Unlike other online editors, it supports most platforms and configurations, providing users with advanced text and paragraph formatting capabilities as well as CSS support and easy HTML tag selection. It also features advanced image manipulation, an effective spell checking module, and a Server Behavior for Dreamweaver MX.
DB_eSession is a feature-packed PHP class that stores session data in a MySQL database rather than files. It is powerful, designed with security in mind, and is easy to utilize. The code contains lots of comments, and it comes with full documentation and examples of how to use the class including a basic authentication login/logout process. It includes member functions useful (to webmasters) for monitoring or viewing, deleting, and altering sessions validity for the case of locking one or more sessions upon detection of unauthorized use.