undefined variable in view using dompdf - php

Question

I am trying to generate a pdf with DOMPDF. This is my code:
class PDFController extends Controller
{
public function invoice(Request $request) {
// $institution = $this->institution();
// $user = $this->user();
$invoice = array($this->invoice_form($request));
$pdf = PDF::loadView('pdf-generation.invoice', $invoice);
return $pdf->setPaper('a4', 'landscape')->download('invoice.pdf');
//return view('pdf-generation.invoice')->with(['institution' => $institution, 'user' => $user, 'invoice' => $invoice]);
}
public function institution() {
$institution = Institution::where('id', 1)->get()->first();
return $institution;
}
public function user() {
$user = Auth::user();
return $user;
}
public function invoice_form(Request $request) {
$this->validate($request, array(
'furnizor-select' => 'required',
'document-number' => 'required',
'document-date' => 'required',
'due-date' => 'required',
'discount-procent' => 'required',
'discount-value' => 'required',
'total-value' => 'required',
'nir-number' => 'nullable'
));
$invoice = new \App\Models\Invoice();
$invoice->provider_id = $request->input('furnizor-select');
$invoice->number = $request->input('document-number');
$invoice->document_date = $request->input('document-date');
$invoice->due_date = $request->input('due-date');
$invoice->discount_procent = $request->input('discount-procent');
$invoice->discount_value = $request->input('discount-value');
$invoice->total = $request->input('total-value');
$invoice->save();
$invoices = Invoice::all();
$invoice_id = $invoices->last()->id;
$old_date = $request->input('document-date');
$new_date = date("d-m-Y", strtotime($old_date));
$provider_id = $request->input('furnizor-select');
$provider = Provider::where('id', $provider_id)->get();
$invoice_number = $request->input('document-number');
$old_due_date = $request->input('due-date');
$new_due_date = date("d-m-Y", strtotime($old_due_date));
$filename = 'pdfs/nir'.$invoice_id.'.pdf';
$institution = $this->institution();
$user = $this->user();
$array = array(
'invoice_id' => $invoice_id,
'new_date' => $new_date,
'provider' => $provider,
'invoice_number' => $invoice_number,
'due_date' => $new_due_date,
'provider' => $provider,
'institution' => $institution,
'user' => $user
);
return (object) $array;
}
}
And in my pdf-generation.invoice view, I have some html generate but it is not worth to post it all, so I am going to post only one line to give you some idea about the problem:
<span style="font-weight: bold; float: left;">{{$invoice->institution}}</span>
However, it says Undefined variable $invoice.. what could be the problem?

Answer 1

You can compact your variable like this:
$pdf = PDF::loadView('pdf-generation.invoice', compact('invoice'));