R Rati Dubey 🎓 Tutor III ⭐ 8.55K Points 📊 PHP Q. Which of the following is true about PHP variables? (A) They must start with a $ sign (B) They are case-sensitive (C) They cannot start with a number (D) All of the above 👁️ Show Answer 💬 Discuss 🔗 Share ⚡Menu ✅ Correct Answer: (D) All of the above Explanation: PHP variables start with $, are case-sensitive, and cannot begin with a number.