R Rati Dubey 🎓 Tutor III ⭐ 8.55K Points 📊 PHP Q. What is the use of the isset() function? (A) To destroy a variable (B) To check if a variable is set (C) To print a variable (D) To include a file 👁️ Show Answer 💬 Discuss 🔗 Share ⚡Menu ✅ Correct Answer: (B) To check if a variable is set Explanation: isset() returns true if the variable is set and not NULL.