How can one ensure that the paths to the background images are correctly set in PHP when used within CSS?

When using background images in CSS with PHP, it's important to ensure that the paths to the images are correctly set so that they are displayed properly. One way to do this is by using PHP to echo out the correct file path within the CSS code. This can be done by defining a PHP variable that holds the path to the images and then using that variable within the CSS code.

<?php
$image_path = "images/background.jpg";
?>

<style>
    .background {
        background-image: url(<?php echo $image_path; ?>);
        /* other background properties */
    }
</style>