What are some common pitfalls that PHP beginners may encounter when working with databases?

One common pitfall for PHP beginners when working with databases is not properly sanitizing user input, which can lead to SQL injection attacks. To prevent this, always use prepared statements or parameterized queries to securely interact with the database. 

// 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 mysqli error handling data validation

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