I have something like a json array output, it comes like :

```
{
  "data": [
    {
      "color"
      "size"
      "id"
      "weight"
    },
    {
      "color"
      "size"
      "id"
      "weight"
    },

```

And so on.
The array name is called $cars.
I need to loop through all the array and get all car sizes.

something like:

```
foreach ($cars as $value) {
    $carsize=[data][i][size]

```

Thanks.