How does PHP treat objects internally as associative arrays or hashes?

PHP treats objects internally as associative arrays or hashes by allowing you to access object properties using either the object operator (->) or array syntax (['key']). This means you can interact with objects in a way similar to how you would with associative arrays.

// Creating a new object
$person = new stdClass();
$person->name = 'John Doe';
$person->age = 30;

// Accessing object properties using array syntax
echo $person['name']; // Output: John Doe

// Accessing object properties using object operator
echo $person->age; // Output: 30