Are there best practices for implementing asynchronous processes in PHP to avoid blocking script execution?

When implementing asynchronous processes in PHP to avoid blocking script execution, it is recommended to use tools like PHP's `pcntl_fork()` function or libraries like ReactPHP or Amp. These tools allow you to spawn child processes to handle time-consuming tasks while the main script continues to execute. By using asynchronous processes, you can improve the performance of your PHP application and prevent it from becoming unresponsive.

// Example using pcntl_fork() to implement asynchronous processes
$pid = pcntl_fork();
if ($pid == -1) {
    // Fork failed
    die("Fork failed");
} elseif ($pid) {
    // Parent process
    pcntl_wait($status); // Wait for child process to finish
} else {
    // Child process
    // Perform time-consuming task here
    exit(); // Exit child process
}