R Ravi Shankar 🎓 Newbie ⭐ 4.19K Points 📊 MySQL Q. What does 'mysql_query()' return on failure? (A) 0 (B) 1 (C) -1 (D) a non-zero value 👁️ Show Answer 💬 Discuss 🔗 Share ⚡Menu ✅ Correct Answer: (D) a non-zero value Explanation: This question asks about how the `mysql_query()` function in MySQL behaves when it encounters an error.