Each

                            
<?php
 
namespace App\Http\Controllers;
 
use App\Models\Example;
 
class ExampleController extends Controller
{
    public function show($id)
    {
        $extensions = [
            "jpg" => 0,
            "png" => 0,
            "gif" => 0,
        ];
 
        $item = Example::findOrFail($id);
 
        $item->images->each(function ($image) use (&$extensions) {
            $extensions[$image->getExtension()]++;
        });
 
        return view("example.show", ["item" => $item, "extensions" => $extensions]);
    }
}