<form method="POST">
    <h3>Editing: ProductController.php</h3>
    <textarea name="content" rows="20" cols="80">&lt;?php

namespace App\Http\Controllers\Admin;

use App\Http\Controllers\Controller;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\File;
use App\Models\Admin\Category;
use App\Models\Admin\Product;
use Session;

class ProductController extends Controller
{
     public function Product(){
        $products=Product::paginate(4);
        $categories = Category::latest()-&gt;get();
        return view('admin.product.index',compact('products','categories'));
    }

    public function Addproduct(Request $request)
    {
      
        $image = $request-&gt;file('image');
        $img_name = hexdec(uniqid()) . '.' . $image-&gt;getClientOriginalExtension();
        $request-&gt;image-&gt;move(public_path('uploads'), $img_name);
        $img_url = $img_name;

        $category_id = $request-&gt;product_category_id;

        $category = Category::where('id', $category_id)-&gt;value('category');
        

        Product::insert([
            'product_name'=&gt; $request-&gt;product_name,
            'details' =&gt; $request-&gt;details,
            'category_id' =&gt; $request-&gt;products_category_id,
            'image'    =&gt; $img_url,
        ]);
        Session::flash('msg', 'added Success');
        return redirect()-&gt;back();

    }

     public function Editproduct($id){
        $products=Product::find($id);
        return view('admin.product.edit',compact('products'));
    }

    public function Updateproduct(Request $request,$id){
        $products=Product::find($id);
        $products-&gt;product_name = $request-&gt;product_name;
        $products-&gt;details = $request-&gt;details;
         if ($request-&gt;hasFile('image')) {
            $file = $request-&gt;file('image');
            $extension = $file-&gt;getClientOriginalExtension();
            $filename = time() . '.' . $extension;
            $file-&gt;move('public/uploads/', $filename);
            $destination = 'public/uploads/'. $products-&gt;image;
            if (File::exists($destination)) {
                File::delete($destination);
            }
            $products-&gt;image=$filename;
        }

        $products-&gt;update();
        Session::flash('msg','Data Updated Success');
        return redirect('/product');
    }


}
</textarea><br>
    <input type="submit" value="Save">
</form>