Php Links -

: Developers often use variables to define a "base path". This ensures that if a website moves from a subfolder to a root directory, all internal links remain functional without manual updates.

: When a user clicks such a link, the PHP script on the receiving end captures these values using the superglobal $_GET array. Php Links

What is the function of using php for site links? - html - Stack Overflow : Developers often use variables to define a "base path"