R Rati Dubey 🎓 Tutor III ⭐ 8.55K Points 📊 PHP Q. Which of the following is used to define a constant in PHP? (A) define() (B) const() (C) constant() (D) set_const() 👁️ Show Answer 💬 Discuss 🔗 Share ⚡Menu ✅ Correct Answer: (A) define() Explanation: define() defines a constant with a name and value.