sidebar.php

<!-- Sidebar -->
    <ul class="navbar-nav bg-gradient-primary sidebar sidebar-dark accordion" id="accordionSidebar">

      <!-- Sidebar - Brand -->
      <a class="sidebar-brand d-flex align-items-center justify-content-center" href="index.php">
        <div class="sidebar-brand-icon rotate-n-15">
          <i class="fas fa-laugh-wink"></i>
        </div>
        <div class="sidebar-brand-text mx-3"> Magento Dashboard  </div>
      </a>

      <!-- Divider -->
      <hr class="sidebar-divider my-0">

      <!-- Nav Item - Dashboard -->
 
      <hr class="sidebar-divider">

      <!-- Heading -->
      <div class="sidebar-heading">
        Report
      </div>

      <!-- Nav Item - Pages Collapse Menu -->
      <li class="nav-item">
        <a class="nav-link collapsed" href="#" data-toggle="collapse" data-target="#collapseTwo" aria-expanded="true" aria-controls="collapseTwo">
          <i class="fas fa-fw fa-cog"></i>
          <span>Order Report</span>
        </a>
        <div id="collapseTwo" class="collapse" aria-labelledby="headingTwo" data-parent="#accordionSidebar">
          <div class="bg-white py-2 collapse-inner rounded">
            
                <a class="collapse-item" href="advancedreport.php">Advanced Orders Report</a>
         
          </div>
        </div>
      </li>
    
    
      
      
       <li class="nav-item">
        <a class="nav-link collapsed" href="#" data-toggle="collapse" data-target="#collapseTwo" aria-expanded="true" aria-controls="collapseTwo">
          <i class="fas fa-fw fa-cog"></i>
          <span>SALE REPORT</span>
        </a>
        <div id="collapseTwo" class="collapse" aria-labelledby="headingTwo" data-parent="#accordionSidebar">
          <div class="bg-white py-2 collapse-inner rounded">
            
                <a class="collapse-item" href="advancedsale2.php">Advanced Sale Report</a>
         
          </div>
        </div>
      </li>

      <!-- Nav Item - Utilities Collapse Menu -->
      
      

      <!-- Divider -->
     <div class="text-center d-none d-md-inline">
        <button class="rounded-circle border-0" id="sidebarToggle"></button>
      </div>

    </ul>