What are the best practices for ensuring that background images are included when printing a webpage generated dynamically with PHP?

When printing a webpage generated dynamically with PHP, background images may not automatically be included in the printout. To ensure that background images are included, you can use CSS media queries to specify that background images should be printed. This can be achieved by adding a specific CSS rule for printing that includes the background images.

<style>
@media print {
  body {
    background-image: url('path/to/background-image.jpg');
    background-repeat: no-repeat;
    background-size: cover;
  }
}
</style>