On 77.4% of websites whose server-side language is known as of October 2018, PHP is being utilized. It is frequently used on websites to dynamically generate the web page content.

Use-cases include:

Websites and web applications (server-side scripting)

Coding in the command line

Desktop (GUI) software

It is typically used in the first form to create dynamic web page content. For instance, if you run a blog website, you might create some PHP scripts to show your blog entries after retrieving them from a database.

Among PHP programs' further applications are:

Processing and storing form data that contains user input

Using and managing cookies on websites

Limiting access to some of your website's pages

Facebook, the largest social networking site, is created in PHP.