You might come up with a situation where you want to check if a given Eloquent attribute was changed compared with its original stored value.
You have an Eloquent model that you retrieved from the database.
Now, you want to understand if a specific attribute changed prior to the update().
You can use:
if($model->isDirty('email'))
This means "if my current eloquent model has the attribute email different from its original value".
Useful in situations where you want to execute a business operation only in case an
attribute was changed.
Hope it helps,
Bruno
www.laraning.com