How to Use async in PHP

The former method of task execution is called synchronous execution and the latter is called asynchronous execution. In this tutorial, we will learn how to perform multiple tasks in parallel in PHP by using the Spatie async library. The library uses the symfony/process component to create and manage different child processes. The content of each file is a random hexadecimal string that is 4096 bytes long. The content is just a random Hexadecinal string.