What are common pitfalls when using PHP for website development?

One common pitfall when using PHP for website development is not properly sanitizing user input, which can leave your website vulnerable to security threats such as SQL injection attacks. To solve this issue, always use prepared statements or parameterized queries when interacting with a database to prevent malicious input from being executed as SQL code. 

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

Keywords

SQL injection XSS attacks insecure file uploads outdated PHP versions lack of input validation

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