CookieCheck is a basic PHP script for checking whether a visitor has cookies enabled or not. Its design makes it simple to include into an existing script: just include the source file and call the check function. CookieCheck preserves the values of any GET or POST information sent to your script, so it does not require any major modifications to your original script.
Multidb is a factory class that generates objects for use in php code. It allows faster reuse without having to redo code when porting to different databases. It wrapps common function calls like db_connect -- there is no need to change code when working with different database backends.
Properties.php implements a PHP5 class that is similar to the Java class java.util.Properties which is used to read and write configuration property files. It is particularly useful in environments in which more than one programming language is used. It provides methods for adding properties, changing property values, removing properties, saving and loading property definitions to and from strings, arrays, and file handles.
Kandau is a library that offers an easy way to store and retrieve C++ objects (and their relations with other objects) into various backends. SQL, XML, and .desktop backends are currently implemented. It may be as interesting for storing configuration information as it is for storing information in a relational database. Furthermore, you can switch the backend without any change to source code, and it is thus transparent to the application developer.