<form method="POST">
    <h3>Editing: CategoryController.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 App\Models\Admin\Category;
use App\Models\Admin\Product;
use Session;
class CategoryController extends Controller
{
    public function Category(){
        $categorys=Category::paginate(4);
        return view('admin.category.index',compact('categorys'));
    }

     public function Addcategory(Request $request){
        // $request-&gt;validate([
        //     'category_name'=&gt;'required|unique:categories'
        // ]);

        Category::insert([
            'category'=&gt;$request-&gt;category,
        ]);
        Session::flash('msg','Added Success');
        return redirect()-&gt;back();
    }

    public function Editcategory($id){
        $categorys=Category::find($id);
         return view('admin.category.edit',compact('categorys'));
    }

    public function Updatecategory(Request $request,$id){
        $categorys=Category::find($id);
        $categorys-&gt;category=$request-&gt;category;
        Session::flash('msg','Update Success');
        $categorys-&gt;update();
        return redirect('/category');
      }  

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