M Mr. Dubey 🎓 Coach ⭐ 102.92K Points 📊 PHP Q. Which PHP flag is used for exclusive file locking? (A) LOCK_SH (B) LOCK_EX (C) LOCK_NB (D) LOCK_RW 👁️ Show Answer 💬 Discuss 🔗 Share ⚡Menu ✅ Correct Answer: (B) LOCK_EX Explanation: LOCK_EX requests an exclusive lock.