How can PHP developers ensure that their scripts are efficiently handling multiple requests and avoiding conflicts in data processing?

To ensure that PHP scripts efficiently handle multiple requests and avoid conflicts in data processing, developers can utilize locking mechanisms such as mutex or semaphores to control access to shared resources. By implementing these mechanisms, developers can prevent race conditions and ensure that data is processed correctly without conflicts.

$lockFile = fopen("lock.txt", "w");

if (flock($lockFile, LOCK_EX)) {
    // Critical section of code where shared resources are accessed
    // Process data here

    flock($lockFile, LOCK_UN); // Release the lock
} else {
    echo "Unable to acquire lock, please try again later.";
}

fclose($lockFile);