What potential pitfalls should beginners be aware of when using PHP to interact with databases?

Beginners should be aware of SQL injection attacks when interacting with databases using PHP. To prevent this, always use prepared statements with parameterized queries to sanitize user input and prevent malicious SQL code from being executed. 

// Example of using prepared statements to prevent SQL injection
$stmt = $pdo->prepare("SELECT * FROM users WHERE username = :username");
$stmt->bindParam(':username', $username);
$stmt->execute();

Keywords

SQL injection PDO prepared statements error handling database connection.

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