Distinguishing a Folder from a File in PHP

Suppose you have a string containing a path to a file or folder. With the help of special functions is_file and is_dir we can distinguish whether the path points to a file or to a folder.

They work as follows:

php<?php
  $path = 'some path';
  
  var_dump(is_file($path)); // true for a file, false for a folder
  var_dump(is_dir($path));  // true for a folder, false for a file
?>