getnamingo-registry/cp/app/Controllers/ReportsController.php

<?php

namespace App\Controllers;

use App\Models\RegistryTransaction;
use Psr\Http\Message\ResponseInterface as Response;
use Psr\Http\Message\ServerRequestInterface as Request;
use Psr\Container\ContainerInterface;
use Nyholm\Psr7\Stream;

class ReportsController extends Controller
{
    public function view(Request $request, Response $response)
    {
        if ($_SESSION["auth_roles"] != 0) {
            return $response->withHeader('Location', '/dashboard')->withStatus(302);
        }

        return view($response,'admin/reports/index.twig');
    }
    
    public function exportDomains(Request $request, Response $response)
    {
        if ($_SESSION["auth_roles"] != 0) {
            return $response->withHeader('Location', '/dashboard')->withStatus(302);
        }
        
        // Fetch domain data from the database
        $db = $this->container->get('db');
        $domains = $db->select("SELECT name, crdate, exdate FROM domain");

        // Create a temporary memory file for the CSV data
        $csvFile = fopen('php://memory', 'w');
        
        // Define CSV headers
        $headers = ['Domain Name', 'Creation Date', 'Expiration Date'];
        
        // Write the headers to the CSV file
        fputcsv($csvFile, $headers);
        
        // Write the domain data to the CSV file
        foreach ($domains as $domain) {
            fputcsv($csvFile, [
                $domain['name'], 
                $domain['crdate'], 
                $domain['exdate']
            ]);
        }
        
        // Rewind the file pointer to the beginning of the file
        fseek($csvFile, 0);
        
        // Create a stream from the in-memory file
        $stream = Stream::create($csvFile);
        
        // Prepare the response headers for CSV file download
        $response = $response->withHeader('Content-Type', 'text/csv')
                             ->withHeader('Content-Disposition', 'attachment; filename="domains_export.csv"')
                             ->withHeader('Pragma', 'no-cache')
                             ->withHeader('Expires', '0');

        // Output the CSV content to the response body
        return $response->withBody($stream);
    }
}