How can PHP developers ensure that database updates are successful and error-free?

To ensure that database updates are successful and error-free, PHP developers can use transactions in their code. By wrapping database update queries within a transaction, developers can ensure that either all the queries are executed successfully or none of them are, preventing partial updates and data inconsistencies. 

// Establish database connection
$pdo = new PDO("mysql:host=localhost;dbname=mydatabase", "username", "password");

// Begin transaction
$pdo->beginTransaction();

try {
    // Perform database update queries
    $pdo->exec("UPDATE table1 SET column1 = 'value1' WHERE id = 1");
    $pdo->exec("UPDATE table2 SET column2 = 'value2' WHERE id = 2");

    // Commit transaction if all queries are successful
    $pdo->commit();
} catch (PDOException $e) {
    // Rollback transaction if any query fails
    $pdo->rollBack();
    echo "Error: " . $e->getMessage();
}

Keywords

SQL queries error handling transactions PDO database connectivity

Related Questions