How can the output of database query results be properly managed to avoid conflicts with PDF generation in PHP?

When generating a PDF in PHP based on database query results, it's important to properly manage the output to avoid conflicts. One way to do this is to store the query results in an array or variable before generating the PDF. This ensures that the database connection is closed before starting the PDF generation process, preventing any conflicts. Additionally, using proper error handling techniques can help identify and resolve any issues that may arise during the process.

// Perform database query and store results in an array
$query = "SELECT * FROM table";
$result = mysqli_query($connection, $query);
$data = mysqli_fetch_all($result, MYSQLI_ASSOC);

// Close the database connection
mysqli_close($connection);

// Generate PDF using stored data
// Add your PDF generation code here