OPA is a Java GUI application framework that provides services common to mst GUI domains such as window, user option, resource, help, action, module, log, and directory management. It is based on a module architecture where modules (JAR files) are added at start-up and make use of the services provided.
arraymanip is a PHP class for manipulating data in arrays. It is capable of moving elements from one position to another, deleting elements, and inserting elements in specific positions. It supports mixed indexed arrays, although this isn't recommended. By default it works with integer indexed arrays.
NetCrypto is a library of functions and a framework to interface with crypto algorithms provided by the calling application, built-in, or provided through shared libraries. It was developed with some features from OpenSSL in mind and with some inspiration from OpenSSL's EVP layer and ENGINE framework.