How can error handling be improved in the provided PHP code?
The provided PHP code does not have proper error handling mechanisms in place. To improve error handling, we can use try-catch blocks to catch exceptions and handle errors gracefully. This will help in identifying and resolving any issues that may arise during the execution of the code.
try {
$db = new PDO('mysql:host=localhost;dbname=testdb', 'username', 'password');
$db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
// Perform database operations
} catch (PDOException $e) {
echo "Connection failed: " . $e->getMessage();
}