🐘 PHP Security Basics

Security in PHP isn’t optional. Here’s the lowdown on protecting your apps from common attacks and leaks.

📝 Example: Sanitizing User Input

📖 Key Security Tips

• Sanitize user input with htmlspecialchars() and strip_tags() to prevent XSS.
• Use prepared statements for database queries to avoid SQL injection.
• Never store plain passwords — always hash with password_hash() and verify with password_verify().
• Validate all inputs on server-side, never trust client-side only.
• Use HTTPS to encrypt data in transit.
• Set proper file permissions so no one can access sensitive files directly.