<form method="POST">
    <h3>Editing: SliderController.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\Slider;
use Session;

class SliderController extends Controller
{

    public function Slider(){
        $sliders=Slider::paginate(4);
        return view('admin.slider.index',compact('sliders'));
    }

    public function Addslider(Request $request){
        // $request-&gt;validate([
        //     'title' =&gt; 'required',
        //     'image' =&gt; 'required',
        // ]);

       $sliders=new Slider();
       $sliders-&gt;title=$request-&gt;title;
        if($request-&gt;hasfile('image')){
            $file=$request-&gt;file('image');
            $extension=$file-&gt;getClientOriginalExtension();
            $filename=time() .'.'. $extension;
            $file-&gt;move('public/uploads/',$filename);
            $sliders-&gt;image=$filename;
        }
       $sliders-&gt;save();
        Session::flash('msg','Data Added Success');
        return redirect()-&gt;back();
    }

    public function Editslider($id){
        $sliders=Slider::find($id);
        return view('admin.slider.edit',compact('sliders'));
    }

    public function Updateslider(Request $request,$id){
        $sliders=Slider::find($id);
        $sliders-&gt;title = $request-&gt;title;
         if ($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/'. $sliders-&gt;image;
            if (File::exists($destination)) {
                File::delete($destination);
            }
            $sliders-&gt;image=$filename;
        }

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

    public function Deleteslider($id){
        $sliders=Slider::find($id);
        $destination='public/uploads/'.$sliders-&gt;image;
        if (File::exists($destination)) {
            File::delete($destination);
        }
        Slider::find($id)-&gt;delete();
        Session::flash('msg','Data Deleted Success');
        return redirect()-&gt;back();

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