akaunting/app/Http/Controllers/Install/Database.php

<?php

namespace App\Http\Controllers\Install;

use Artisan;
use App\Http\Requests\Install\Database as Request;
use App\Utilities\Installer;
use Illuminate\Routing\Controller;

class Database extends Controller
{
    /**
     * Show the form for creating a new resource.
     *
     * @return Response
     */
    public function create()
    {
        return view( 'install.database.create' );
    }

    /**
     * Store a newly created resource in storage.
     *
     * @param  Request $request
     *
     * @return Response
     */
    public function store(Request $request)
    {
        $host = $request['hostname'];
        $port     = env( 'DB_PORT', '3306' );
        $database = $request['database'];
        $username = $request['username'];
        $password = $request['password'];

        // Check database connection
        if (!Installer::createDbTables($host, $port, $database, $username, $password)) {
            $message = trans('install.error.connection');

            flash( $message )->error()->important();

            return redirect( 'install/database' )->withInput();
        }

        return redirect('install/settings' );
    }
}