How can developers ensure the security and integrity of their data when using executeQuery for database operations in PHP?

Developers can ensure the security and integrity of their data when using executeQuery for database operations in PHP by using prepared statements with placeholders for user input. This helps prevent SQL injection attacks and ensures that the data is properly sanitized before being executed in the database query. 

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

// Prepare a SQL statement with placeholders
$stmt = $pdo->prepare('SELECT * FROM users WHERE username = :username');

// Bind the user input to the placeholders
$stmt->bindParam(':username', $_POST['username']);

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

// Fetch the results
$results = $stmt->fetchAll();

Keywords

SQL injection prepared statements PDO data validation data sanitization

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