navbar.php

  <?php
  session_start();
  if (empty($_SESSION['userLogin']) || $_SESSION['userLogin'] == '') {
    header("Location:index.php");
    die();
  }

  ?>
  <?php


  if (isset($_SESSION["user"])) {
    $d = $_SESSION["user"];

  ?>
  <?php
  }

  ?>


    <nav class="navbar navbar-expand-lg bg-light">
      <div class="container-fluid">
        <a class="navbar-brand" href="#">Navbar</a>
        <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarNavDropdown" aria-controls="navbarNavDropdown" aria-expanded="false" aria-label="Toggle navigation">
          <span class="navbar-toggler-icon"></span>
        </button>
        <div class="collapse navbar-collapse" id="navbarNavDropdown">
          <ul class="navbar-nav">
            <li class="nav-item">
              <a class="nav-link active" aria-current="page" href="#">Home</a>
            </li>
            <li class="nav-item">
              <a class="nav-link" href="#">Features</a>
            </li>
            <li class="nav-item">
              <a class="nav-link" href="#">Pricing</a>
            </li>
            <li class="nav-item dropdown">
              <a class="nav-link dropdown-toggle" href="#" role="button" data-bs-toggle="dropdown" aria-expanded="false">
                Dropdown link
              </a>
              <ul class="dropdown-menu">
                <li><a class="dropdown-item" href="#">Action</a></li>
                <li><a class="dropdown-item" href="#">Another action</a></li>
                <li>
                <li><a class="dropdown-item" onclick="logout();">logout</a></li>
            </li>
          </ul>
          </li>
          </ul>
        </div>
      </div>
    </nav>