The default value for Job::input should be null

[Aerendir]

Currently the signature is this:

public function __construct(string $command, $input = [], string $queue = Daemon::DEFAULT_QUEUE_NAME)

But the correct way of creating a new Job with input is this:

new Job('your:command', 'input-value --an-option', 'the_queue');

If the Job is created passing an array, the Job will behave wrongly.

So, the syntax required to create a new Job without input is a bit confusing:

new Job('your:command', [], 'the_queue');

It is better to use a null value:

new Job('your:command', null, 'the_queue');