Creating a Task

Create a task class by extending Task. The execute function is abstract and it is here where your task processing takes place.

class MyTask extends Task
{
    public function execute(callable $statusCallback)
    {
        // Doing something really slow here...
        for($x = 0; $x < 100; $x++){
            sleep(1);
        }
    }
}

If you want to report your progress you should call the $statusCallback callback and pass a TaskStatus object giving a percentage complete and a message.

class MyTask extends Task
{
    public function execute(callable $statusCallback)
    {
        $length = 100;

        // Doing something really slow here...       
        for($x = 0; $x < $length; $x++){

            $statusCallback(
                new TaskStatus(
                    $x * 100 / $length,
                    "Sleeping quietly..."
                    )
                );

            sleep(1);
        }
    }
}