A Admin 🎓 Coach ⭐ 38.23K Points 📊 PHP Q. Which PHP function is used to check whether a variable is empty? (A) is_null() (B) isset() (C) empty() (D) check() 👁️ Show Answer 💬 Discuss 🔗 Share ⚡Menu ✅ Correct Answer: (C) empty() Explanation: empty() checks whether a variable is empty.