Laravel 5.3 cannot use select value from collection - php

Question

Im trying to calculate the price including tax of a product in an ecommerce app. In table tax i have the following columns:
id - iso_code - vat.
My query to obtain vat information for a particular countryid:
$taxRate = DB::table('tax')
->select('vat')
->where('iso_code', $productcountryid)
->get();
If I print_r the $taxRate value I obtain
Illuminate\Support\Collection Object ( [items:protected]
=> Array ( [0] => stdClass Object ( [vat] => 1 ) ) )
To retrieve vat value I used:
$taxRates=$taxRate[0]['tax'];
and I obtain the following info:
Cannot use object of type stdClass as array
On the other hand, using
$taxRates = $taxRate->vat;
Error: Undefined property: Illuminate\Support\Collection::$vat
My idea is to use $taxRate value to obtain a simple calculation
priceamount = $productprice * $taxRate
UPDATE using #assada suggestion ------
$array = $taxRate->toArray();
(array)[0]['vat']
gives error:
Cannot use object of type stdClass as array
any help appreciated about how to process the value returned in a collection.
brgds.

Answer 1

https://laravel.com/docs/5.4/collections
You can use some like this:
$taxRate = DB::table('tax')
->select('vat')
->where('iso_code', $productcountryid)
->get();
$collection = collect($taxRate);
$array = $collection->toArray();
or just try
$taxRate = DB::table('tax')
->select('vat')
->where('iso_code', $productcountryid)
->get();
$array = $taxRate->toArray();