Eloquent update event, how to understand what data has been updated?

Question

Laravel

In the observer, you need to know which fields have changed in the model after the update, how to implement this?

Answer 1

The model has methods isDirty/ isClean/ hasChanges/ wasChangedand a couple of similar ones. Feel free to study the framework code.

Answer 2

Just as an example:

$item->save();
$changes = $item->getChanges();