[Vuejs]-Fetch Data and Populate in Text Boxes if Selected Dropdown Option

I don’t know Laravel 5.7 or vue but the concept remains the same

1- I would give an example of what I would do, I’ll make a php file that has a select * from database and echo the result in json
2- Then use ajax, fetch to the php file and get that json, I will use the data retrieved in the javascript file
3 – I will have a function like on Dropdown Option onclick fetch or ajax, make the dropdown options equal to to the json fetched.