TinyButStrong is a template class for PHP that allows you to generate XML/HTML pages and any other files based on text source. The engine gives facilities to work with any databases, including in native PDO, MySQL, PostgreSQL, SQLite, PHP arrays, and more. It is possible to design templates using any visual editor (like Dreamweaver or FrontPage), and thus to make templates that are compatible with W3C standards for example. It features simple block management, useful display formats, conditional displaying for blocks and locators, remote XML/HTML attribute modification, a cache system, and the ability to include sub-templates and execute associated scripts. Plug-ins are supported since version 3.0.
lib4d_sql is a C library that provides the required functions (connect, prepare, execute, etc.) for writing an SQL client for 4D databases. It uses the public 4D SQL protocol, which is supported by 4D products since version 11. It is already used by the PDO_4D Open Source project, and it might be used to provide others drivers for JDBC, ADO, or ActiveRecord.