What are the best practices for handling CSS and HTML layout for printing documents in PHP?

When printing documents in PHP, it is important to consider the layout and styling of the HTML content to ensure it looks good on paper. Best practices include using media queries to create a separate print stylesheet, optimizing the layout for printing by removing unnecessary elements, and testing the print layout before finalizing the document.

<?php
// Define a print stylesheet to optimize layout for printing
echo '<style type="text/css" media="print">
    /* Add print-specific styles here */
</style>';

// Include your HTML content for printing
echo '<div class="print-content">
    <h1>Printable Document</h1>
    <p>This is the content that will be printed.</p>
</div>';
?>