R Rati Dubey 🎓 Tutor III ⭐ 8.55K Points 📊 PHP Q. Which of these is not a valid PHP variable name? (A) $var1 (B) $1var (C) $_var (D) $var_1 👁️ Show Answer 💬 Discuss 🔗 Share ⚡Menu ✅ Correct Answer: (B) $1var Explanation: Variable names cannot start with a digit.