R Rati Dubey 🎓 Tutor III ⭐ 8.55K Points 📊 PHP Q. Which of the following is used to define an interface in PHP? (A) interface (B) class (C) implements (D) abstract 👁️ Show Answer 💬 Discuss 🔗 Share ⚡Menu ✅ Correct Answer: (A) interface Explanation: The 'interface' keyword is used to define an interface.