PHP can control the execution of server-side code and display the output that the server sends to the browser. Most browsers, including Internet Explorer, Firefox, Chrome, Edge, etc., also support it. PHP is mostly used for creating dynamic web pages, unlike HTML.

Language: HTML is a markup language it is used by front-end developers to develop web applications or websites. PHP is a server-side scripting language used for the development of the dynamic application. The result of HTML code is static and remains constant, whereas the result of PHP is dynamic.

php files, put them in your web directory and the server will automatically parse them for you. There is no need to compile anything nor do you need to install any extra tools. Think of these PHP-enabled files as simple HTML files with a whole new family of magical tags that let you do all sorts of things.

The packages for installing mod_php automatically enable the module for Apache HTTPD, and it's configured to work with . php and . phtml files. Dropping PHP files with these extensions into the document root of your server (or a configured virtual host) will recognize them and execute them using mod_php.