delete previous uploaded image when update laravel
if($request->file('image'))
{
//to delete the prevous uploaded image
@unlink(public_path('backend/uploads/profile/'.$user->image));
//make the image name. here we are making name with current time
$imageName = time().'.'.$request->image->extension();
//time to upload to directroy you choose
$request->image->move(public_path('backend/uploads/profile'), $imageName);
//now save the image name to database
$user['image'] = $imageName;
}
//finally time to save all things to database
$user->save();