In this paper, we present a hybrid-based model transformation, according to the Architecture Driven Modernization (ADM) approach, intended for getting UML (Unified Modeling Language) models from the PHP (Hypertext Preprocessor) code. This latter has been done by offering a tool support for automated generation of UML platform independent models from PHP ASTM (Abstract Syntax Tree Metamodel) representations, which are specific platform models. The model transformation rules are expressed in ATL (Atlas Transformation Language), which is a widely used model transformation language based on the hybrid approach. This work aims to fill the gap between the web-based applications maintenance, especially PHP-based implementations, and the model transformation processes in the ADM context.