Multiple files upload in laravel

I want to upload multiple files and save their path into one column using comma separator, i am trying it but not get 100% result.

Right now images or files are uploaded into path but it save only first file name in db.

here is my form

    <form role="form" method="post" action="{{ action('ProjectsController@projectCommunication') }}" enctype="multipart/form-data">
             <input type="hidden" name="_token" value="{{ csrf_token()}}">
            
            <div class="form-group">
                <label for="message">Enter Comment:</label>
                <textarea class="form-control" rows="3" id="message" name="message" placeholder="Enter Comment here!"></textarea>
            </div>
            
            <div class="form-group">
                <label for="media">Upload File:</label>
                <input type="file" class="form-control" name="media[]" id="media" multiple>
            </div>

    <button class="btn btn-primary">Send</button>
        </form>

here is controller code

    if($request->file('media'))
    {
        foreach($request->file('media') as $media)
        {
            if(!empty($media))
            {
            $destinationPath = 'uploads/companies/award';
            $filename = $media->getClientOriginalName();
            $media->move($destinationPath, $filename);
            
            $projectcommunication->media = $filename;
            }
        }
        }