How can PHP developers ensure data integrity when inserting records into a database?

To ensure data integrity when inserting records into a database, PHP developers can use prepared statements with parameterized queries. This helps prevent SQL injection attacks and ensures that the data being inserted is properly sanitized and validated before being sent to the database. 

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

// Prepare a SQL statement with placeholders for parameters
$stmt = $pdo->prepare("INSERT INTO users (username, email) VALUES (:username, :email)");

// Bind the parameters with values
$stmt->bindParam(':username', $username);
$stmt->bindParam(':email', $email);

// Set the parameter values
$username = 'john_doe';
$email = 'john.doe@example.com';

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

Keywords

SQL injection prepared statements PDO data validation transaction handling

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