Designing Secure PHP Web Architectures

Web application security is paramount, especially when aiming for national competitions like bestweb.lk. In this article, we cover key techniques such as PDO parameterized queries, secure session lifecycles, escaping output via htmlspecialchars, and password hashing using bcrypt.

Why Bcrypt Matters

Unlike old MD5 or SHA1 algorithms, Bcrypt implements a configurable work factor that slows down brute-force attacks, protecting credentials in database tables.