Image Upload duplication - php

Question

I am trying to allow users to upload three images(optional) when they make a review of the product. I am encountering a problem with the code below, which is that the images duplicate when the form is submitted which means that i sometimes get two of the same images or all three the same. Does anyone know the solution to this issue or a better way to do three image optional image uploads?
Html:
{{Form::label('image', 'Image(optional')}}
{{Form::file('image')}}
{{Form::label('image2', 'Image(optional')}}
{{Form::file('image2')}}
{{Form::label('image3', 'Image(optional')}}
{{Form::file('image3')}}
Laravel PHP:
$picture = new Picture();
if($request->hasFile('image')){
$image = $request->file('image');
$filename = time() . '.' . $image->getClientOriginalExtension();
$location = public_path('images/' . $filename);
Image::make($image)->save($location);
$picture->image = $filename;
}
$picture->products()->associate($product);
$picture->user_id = $request->user()->id;
$picture->reviews()->associate($review);
$picture->save();
$picture2 = new Picture();
if($request->hasFile('image2')){
$image = $request->file('image2');
$filename = time() . '.' . $image->getClientOriginalExtension();
$location = public_path('images/' . $filename);
Image::make($image)->save($location);
$picture2->image = $filename;
}
$picture2->products()->associate($product);
$picture2->user_id = $request->user()->id;
$picture2->reviews()->associate($review;
$picture2->save();
$picture3 = new Picture();
if($request->hasFile('image3')){
$image = $request->file('image3');
$filename = time() . '.' . $image->getClientOriginalExtension();
$location = public_path('images/' . $filename);
Image::make($image)->save($location);
$picture3->image = $filename;
}
$picture3->products()->associate($product);
$picture3->user_id = $request->user()->id;
$picture3->reviews()->associate($review);
$picture3->save();