How to update value by Events in CodeIgniter 4

I did not test this but try it no time right now.

PHP Code:

use CodeIgniter\Events\Events;

Events::on('add_value_to_array', function() use (&$array) {
    error_log("add_value_to_array" . PHP_EOL, 3, "events.txt");
    array_push($array, "new");
}); 


What did you Try? What did you Get? What did you Expect?

Joined CodeIgniter Community 2009.  ( Skype: insitfx )