How can CSS pseudo-classes like :hover be combined with PHP logic to create dynamic navigation styling effects?

To combine CSS pseudo-classes like :hover with PHP logic to create dynamic navigation styling effects, you can use PHP to dynamically generate CSS classes based on certain conditions or variables. By adding inline styles or classes to your HTML elements using PHP, you can create dynamic styling effects that change based on user interactions or backend data.

```php
<?php
// Assume $activePage is a variable that holds the current active page
$pages = array("Home", "About", "Services", "Contact");

foreach($pages as $page) {
    // Check if the current page matches the active page
    if($page == $activePage) {
        echo '<a href="#" class="nav-link active">' . $page . '</a>';
    } else {
        echo '<a href="#" class="nav-link">' . $page . '</a>';
    }
}
?>
```

In the above PHP code snippet, we are dynamically generating navigation links based on the $activePage variable. If a page matches the activePage, we apply the "active" class to the link, which can then be styled using CSS pseudo-classes like :hover to create dynamic navigation styling effects.