Are there any specific guidelines or recommendations for handling data output from a database in PHP to ensure compatibility with different browsers and operating systems?

When handling data output from a database in PHP to ensure compatibility with different browsers and operating systems, it is important to properly format the data using appropriate HTML tags and encoding functions. This includes using htmlspecialchars() function to escape special characters and prevent XSS attacks, as well as ensuring that the content is displayed correctly across different platforms.

// Fetch data from the database
$data = fetchDataFromDatabase();

// Output the data with proper HTML formatting and encoding
echo '<div>' . htmlspecialchars($data, ENT_QUOTES, 'UTF-8') . '</div>';