What is the difference between including a whole page and including an image in PHP?

When including a whole page in PHP, the entire content of the included file will be displayed within the current page. On the other hand, when including an image in PHP, only the image file itself will be displayed within the current page. To include a whole page in PHP, you can use the `include` or `require` function like this:

<?php
include 'page.php';
?>
```

To include an image in PHP, you can simply use the HTML `img` tag like this:

```php
<?php
echo '<img src="image.jpg" alt="Image">';
?>