php - Laravel: Check if variable is being passed from controller

I'm trying to check if variable is being passed from controller but isn't working, the controller function looks like here:

public function editClient($id)
    {
        $client = Client::find($id);
       // $client_project = DB::table('client_project')->where('client_id',$id)->first()->project_id;
        //$project = DB::table('projects')->where('id',$client_project)->first();
        $client_projects = Client::find($id)->projects;
        return view('cms.public.views.clients.editclient', ['client' => $client, 'client_projects' => $client_projects]);

    }
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In the client blade I show the projects of each one with this code:

<h3 >Proyectos de {{$client->name}}</h3>

     @foreach ($client_projects as $project)

      <div >
       <h4 ><a href="/admin/project/{{$project->id}}/edit" >{{$project->title}}</a></h4>
       <a href="/admin/project/{{$project->id}}/edit"><img src="{{ asset('/storage/projects/'.$project->slug.'/header.jpg') }}" ></a>
      </div>

@endforeach
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But I only want to show it when have projects if not i don't want to show de .

I'm trying to do it with this code:

@if ( !empty($client_projects['slug']))

//code

@endif
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