In what ways can object-oriented mysqli functions improve the readability and maintainability of the code?

Using object-oriented mysqli functions can improve the readability and maintainability of the code by encapsulating database operations within objects, allowing for a more organized and modular code structure. This approach also simplifies error handling and reduces the risk of SQL injection attacks by using prepared statements.

// Create a mysqli object
$mysqli = new mysqli('localhost', 'username', 'password', 'database');

// Check connection
if ($mysqli->connect_error) {
    die("Connection failed: " . $mysqli->connect_error);
}

// Prepare a SQL statement
$stmt = $mysqli->prepare("SELECT id, name FROM users WHERE id = ?");

// Bind parameters
$id = 1;
$stmt->bind_param("i", $id);

// Execute the statement
$stmt->execute();

// Bind the result
$stmt->bind_result($id, $name);

// Fetch the result
$stmt->fetch();

// Display the result
echo "ID: $id, Name: $name";

// Close the statement and connection
$stmt->close();
$mysqli->close();