How can PHP classes be dynamically included and utilized within a larger application structure?

To dynamically include and utilize PHP classes within a larger application structure, you can use the `include` or `require` functions to load the class files as needed. Once the class files are included, you can create new instances of the classes and call their methods within your application.

// Dynamically include the class file
include 'path/to/YourClass.php';

// Create a new instance of the class
$object = new YourClass();

// Call methods on the class instance
$object->yourMethod();