PHP: Hypertext Preprocessor is a server-side scripting language designed for Web development, but also used as a general-purpose programming language. PHP code may be embedded into HTML code, or it can be used in combination with various web template systems, web content management systems, and web frameworks.
Spring Boot is an open source Java-based framework used to create micro-services. It is developed by Pivotal Team and is used to build stand-alone and production-grade Spring applications.