Q. How do you add a comment in PHP? (A) // This is a comment (B) # This is a comment (C) /* This is a comment */ (D) All of the above 👁️ Show Answer 💬 Discuss 🔗 Share ⚡Menu ✅ Correct Answer: (D) All of the above Explanation: PHP supports single line (// or #) and multi-line (/* */) comments.