What best practices should be followed when displaying dynamic data from a database in PHP?

When displaying dynamic data from a database in PHP, it is important to use prepared statements to prevent SQL injection attacks. Additionally, sanitize user input to prevent cross-site scripting attacks. Finally, consider implementing pagination to improve performance when displaying large datasets.

// Connect to the database
$pdo = new PDO('mysql:host=localhost;dbname=mydatabase', 'username', 'password');

// Prepare a statement to retrieve data from the database
$stmt = $pdo->prepare('SELECT * FROM mytable WHERE id = :id');

// Bind parameters and execute the statement
$stmt->bindParam(':id', $id);
$stmt->execute();

// Fetch data and display it
while ($row = $stmt->fetch()) {
    echo $row['column1'] . ' - ' . $row['column2'] . '<br>';
}