What could be causing a PHP script to distort elements when integrated into a different webpage?

The issue could be caused by conflicting CSS styles between the PHP script and the existing webpage. To solve this, you can encapsulate the PHP script in a separate container with its own unique class or ID, and then apply specific CSS styles to this container to prevent any interference with the rest of the webpage.

<div class="php-container">
    <?php
    // Your PHP script goes here
    ?>
</div>
```

Then, in your CSS file, target the `php-container` class to style the PHP script without affecting other elements on the webpage:

```css
.php-container {
    /* Add specific styles for the PHP script here */
}