Zend Framework (ZF) is an open source, object-oriented web application framework implemented in PHP 5 and licensed under the New BSD License. Developed by Zend
License: Open Source
FuelPHP is a lightweight and modular PHP framework that focuses on simplicity and speed, making it ideal for small to medium projects. In contrast, Zend Framework is a comprehensive, enterprise-level framework that offers extensive features and robust security, suitable for large-scale applications.