Y Yami Thakur 🎓 Tutor II ⭐ 10.27K Points 📊 PHP Q. Which PHP operator checks if a value exists and is not null? (A) isset() (B) empty() (C) ?? (D) !== 👁️ Show Answer 💬 Discuss 🔗 Share ⚡Menu ✅ Correct Answer: (A) isset() Explanation: isset() checks if a variable exists and is not null.