What are some common security measures to implement in PHP applications to protect sensitive data?

One common security measure to protect sensitive data in PHP applications is to use parameterized queries when interacting with a database to prevent SQL injection attacks. By binding parameters to SQL queries, you can ensure that user input is properly sanitized and not executed as SQL code. 

// Example of using parameterized queries to protect against SQL injection
$stmt = $pdo->prepare('SELECT * FROM users WHERE username = :username');
$stmt->bindParam(':username', $username);
$stmt->execute();
$results = $stmt->fetchAll();

Keywords

SQL injection cross-site scripting password hashing SSL/TLS encryption input validation

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