Security Summary
PHP security layers: parameterised queries (SQLi), htmlspecialchars() (XSS), CSRF tokens, password_hash(), validated file uploads, session regeneration, security headers, and rate limiting. No single technique is sufficient alone.
PHP
Beginner
3 min read
PHP Security Summary
Example
// Quick security checklist
// [x] PDO prepared statements for all DB queries
// [x] htmlspecialchars() on all user-controlled output
// [x] @csrf in every Blade form (Laravel)
// [x] password_hash() + password_verify()
// [x] Validate + sanitise file uploads
// [x] session_regenerate_id(true) on login
// [x] Security headers via middleware
// [x] composer audit in CI Pro Tip
Run a security audit with OWASP ZAP or Burp Suite before launching any production PHP app.