PHP ( server side scripting language ) which is a powerful and interactive tool for development of different types of websites. It can be easily to integrated with HTML files.
We need apache server for executing PHP code which is also open source HTTP server. For installation of php and apache, you can install xampp, wampp in you system and get started with development of dynamic webpages. Here are some examples of PHP code which you can easily copy and use in you own code and play around with this.