unlink image only if exists in laravel - laravel

Question

While updating the user image unlink image from public folder if exists otherwise do update the user with image. Currently I have no image for user. And while updating user from profile section I am getting this error unlink('images/users') is a directory. I want if image exists for user then unlink the image and upload the new one otherwise just upload the new image.
My controller:
public function changeUserImage(Request $request)
{
$this->validate($request, [
'image' => 'required|mimes:jpeg,jpg,png|max:10000',
]);
$image = $request->file('image');
if (isset($image)) {
$imageName = time() . '.' . $request->image->getClientOriginalExtension();
if (!file_exists('images/users')) {
mkdir('images/users', 0777, true);
}
if (file_exists('images/users')){
unlink('images/users/' . \auth()->user()->image);
$image->move('images/users', $imageName);
User::find(\auth()->user()->id)->update(['image'=>$imageName]);
}else if (!file_exists('images/users')){
$image->move('images/users', $imageName);
User::find(\auth()->user()->id)->update(['image'=>$imageName]);
}
}
return redirect()->back();
}

Answer 1

Try this. I haven't test it yet. Let me know if you have any questions.
Make sure to Import File: use File;
UPDATED
public function changeUserImage(Request $request)
{
$this->validate($request, [
'image' => 'required|mimes:jpeg,jpg,png|max:10000',
]);
// Let get the current image
$user = Auth::user();
$currentImage = $user->image;
// Let compare the current Image with the new Image if are not the same
$image = $request->file('image');
// The Image is required which means it will be set, so we don't need to che isset($image)
if ($image != $currentImage) {
// To make our code cleaner let define a directory for DRY code
$filePath = public_path('images/users/');
$imageName = time() . '.' . $request->image->getClientOriginalExtension();
if (!File::isDirectory($filePath)){
File::makeDirectory($filePath, 0777, true, true);
}
$image->move($filePath, $imageName);
// After the Image has been updated then we can delete the old Image if exists
if (file_exists($filePath.$currentImage)){
#unlink($filePath.$currentImage);
}
} else {
$imageName = $currentImage;
}
// SAVE CHANGES TO THE DATA BASE
$user->image = $imageName;
$user->save();
return redirect()->back();
}

Answer 2

To store the image: $request->image->storeAs('images/users/', $file_name);
To delete an image: Storage::delete('images/users/'. $file_name);