i18nHTML is a collection of scripts that can be used to write Web pages that visitors can translate into their respective native languages. It uses a database to match sentences from the Web page against translations and defines a set of PHP functions that generate either the translated HTML sentences or the original (typically English) text with decorations that allow users to provide translations. It requires that internationalized pages be written using the functions but does not constrain the page design in any way. Internationalized pages can be updated without losing existing translations for sentences that were not changed.
Envolution is a Content Management System which allows easy management and publication of information from a simple Web browser. In addition to managing content, it can be configured to allow Website visitors to submit articles, comment on previously submitted articles, participate in surveys or polls, and manage their own accounts with simple registration and account management tools.
Expose is a PHP template engine. It supports server and client-sided caching, a plugin system (to simplify common tasks like inserting a date picker) and internationalization (to write templates in multiple languages using external translation files). Unlike most template engines, Expose's template script language is based on PHP itself, which means you don't have to learn a new syntax. You can use most of the PHP language elements and functions in the way with which you're familiar.