Laravel barryvdh/laravel-dompdf multiple components of view in one pdf

I am using barryvdh/laravel-dompdf to generate pdf.

I'm trying generate one pdf file with multiple pages from data collection the problem is that I get only first element and one page. Using foreach loop to generate pages. Also I was trying to use foreach in my blade, but then I get only the last page.

Controller:
public function multiplePagesPdf(Request $request)
    {
            $kuponai = Kuponas::all();
            //dd($kuponas);
            $html = '';
            foreach($kuponai as $kuponas)
            {
                $view = view('pdf.multiple')->with(compact('kuponas'));
                $html .= $view->render();
            }
            $pdf = PDF::loadHTML($html);            
            $sheet = $pdf->setPaper('a4', 'landscape');
            return $sheet->stream('sugeneruoti.pdf');             

    }

Maybe problem in my blade file:

    <!DOCTYPE html>
<html lang="en">
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
  <meta name="viewport" content="width=device-width, initial-scale=1.0" />
  <title>Dovanų kuponas</title>
</head>
<body>
  <div class="coupon">
    <div class="page">
      <div class="subpage">
        <div class="container" style="
              width: 21cm;
              height: 16cm;
              position: absolute;
              top: 6.8cm;
              font-family: DejaVu Sans;
              background: white;
            ">
         <h2>{{!! $kuponas->kupono_nr !!}}</h2>
          <h3 style="margin-left: 3.2cm">
            Dovanų kupono numeris:
            <span style="color: black"></span>
          </h3>
        </div>
      </div>
    </div>
  </div>
</body>

</html>
<style>
  @page {
    size: A4;
    margin: 0;
  }

  @media print {
    .page {
      margin: 0;
      border: initial;
      border-radius: initial;
      width: initial;
      min-height: initial;
      box-shadow: initial;
      background: initial;
      page-break-after: always;
    }
  }
</style>

Solution

There are certain things that are wrong in the code snippet you have provided, I will explain those first then provide correct way of doing it(for which I get results).

Firstly

you have used with & compact together, I don't know if it gets correct results but you should use any one of them or use array syntax of view method.

Secondly

what you are doing it you are rendering the view to html & then concating it, so , your html would look like,

<html>
.... content
</html>
<html>
.... content
</html>
& so on.

Thirdly

You css is messed up & not working as you want because of inline css you have added.

Solution

I would have used View Components to create similar views with different data. So we would create a component in resources/views/components/single.blade.php (here I have named it single). I have added your repeative code in the component single from your view. Now your coupon div class is in the component single.

<div class="coupon">
    <div class="page">
      <div class="subpage">
        <div>
         <h2>{{ $kuponas->kupono_nr }}</h2>
          <h3>
            Dovanų kupono numeris:
            <span></span>
          </h3>
        </div>
      </div>
    </div>
  </div>

Then in your view,

<!DOCTYPE html>
<html lang="en">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<head>
  <title>Dovanų kuponas</title>
  <style>
    .page-break {
    page-break-after: always;
}
  </style>
</head>
<body>
  @php $count = 0;@endphp
  @foreach ($kuponai as $kuponas)
  @php $count++ @endphp
    <div class="container {{ (count($kuponai)-1 >= $count) ? 'page-break' : '' }}">
        @component('pdf.components.single', ['kuponas' => $kuponas])
        @endcomponent
    </div>    
  @endforeach
</body>

</html>

use page-break class to create breaks, I have used count condition to remove one extra page break. I am passing the data of kuponas to the component.

Finally change your controller,

public function multiplePagesPdf(Request $request)
    {
        $kuponai = Kuponas::all();
        //dd($kuponas);
        
        $view = view('pdf.multiple', ['kuponai' => $kuponai]);
        $html = $view->render();
        $pdf = PDF::loadHTML($html)->setPaper('a4', 'landscape');            
        return $pdf->stream('sugeneruoti.pdf');
    }