This paper presents different PHP-based frameworks used for building robust, enterprise-level web applications. The paper focuses on the main features of the two frameworks, and then analyze some of the advantages and disadvantages of using each of them. DotKernel is a custom concept built by Apidemia, mainly used internally but present in the open-source environment. It is a collection of middleware applications built on top of the Zend Expressive microframework, implementing customized versions of some of the Zend Framework components. Symfony is also a concept consisting of a web application framework, a set of reusable, heavily used PHP components, and a community sharing a common philosophy.