How can one ensure compatibility with future PHP versions when working with database queries?

To ensure compatibility with future PHP versions when working with database queries, it is important to use parameterized queries instead of directly inserting variables into SQL queries. This helps prevent SQL injection attacks and ensures that the queries will work across different PHP versions. 

// Example of using parameterized queries with PDO
$pdo = new PDO('mysql:host=localhost;dbname=test', 'username', 'password');
$stmt = $pdo->prepare('SELECT * FROM users WHERE username = :username');
$stmt->execute(['username' => $username]);
$results = $stmt->fetchAll();

Keywords

PDO prepared statements mysqli SQL injection backward compatibility

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