<?php
echo' <nav class="navbar navbar-expand-lg navbar-dark bg-dark fixed-top">
    <div class="container">
        <a class="navbar-brand" href="index.php">Start Bootstrap</a>
        <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarResponsive" aria-controls="navbarResponsive" aria-expanded="false" aria-label="Toggle navigation">
            <span class="navbar-toggler-icon"></span>
        </button>
        <div class="collapse navbar-collapse" id="navbarResponsive">
            <ul class="navbar-nav ml-auto">
                <li class="nav-item active">
                    <a class="nav-link" href="#">Home
                        <span class="sr-only">(current)</span>
                    </a>
                </li>
                <li class="nav-item">
                    <a class="nav-link" href="#">About</a>
                </li>
                <li class="nav-item">
                    <a class="nav-link" href="#">Services</a>
                </li>
                <li class="nav-item">
                    <a class="nav-link" href="#">Contact</a>
                </li>

                <!-- Small button groups (default and split) -->
                <li class="dropdown">
                    <button class="btn btn-secondary dropdown-toggle" type="button" id="dropdownMenuButton" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
                        Panel Czytacza
                    </button>
                 </div>
                    if($isadmin==0){
                    echo'
                    <div class="dropdown-menu" aria-labelledby="dropdownMenuButton">
                        <a class="dropdown-item" href="panel.php">Ustawienia</a>
                        <a class="dropdown-item" href="#">Zamówienia</a>
                       <a class="dropdown-item" href="?Logout">Wyloguj</a>
                    </div>
                </li>
        </div>
    </div>';
     }else if($isadmin==1){ echo'
     <div class="dropdown-menu" aria-labelledby="dropdownMenuButton">
                        <a class="dropdown-item" href="panel.php">Ustawienia</a>
                        <a class="dropdown-item" href="#">Panel Główny</a>
                       <a class="dropdown-item" href="?Logout">Wyloguj</a>
                    </div>
                </li>
        </div>
    </div>'
;


echo' </div>

</nav>';
   ?>