Mini Shell

<!-- Main Header -->
  <header class="main-header">

    <!-- Logo -->
    <a href="index.php" class="logo">
      <!-- mini logo for sidebar mini 50x50 pixels -->
      <span class="logo-mini"><b>S</b>P</span>
      <!-- logo for regular state and mobile devices -->
      <span class="logo-lg"><b>ระบบ</b>บุคลากร CCP</span>
    </a>

    <!-- Header Navbar -->
    <nav class="navbar navbar-static-top" role="navigation">
      <!-- Sidebar toggle button-->
      <a href="#" class="sidebar-toggle" data-toggle="offcanvas" role="button">
        <span class="sr-only">Toggle navigation</span>
      </a>
      <!-- Navbar Right Menu -->
      <div class="navbar-custom-menu">
        <ul class="nav navbar-nav">
          <!-- Messages: style can be found in dropdown.less-->
          
           <?php    
             $teacherID = $session_teacherID;
             $sql_header = "SELECT * FROM teacher  WHERE teacherID='$teacherID'";
             $result_header = mysqli_query($link, $sql_header);
             $row_header = mysqli_fetch_assoc($result_header);
        
          // การใช้งาน
                $dd=$row_header['licenseDate']; //กำหนดวันที่ปัจจุบัน
              if ($dd == "0000-00-00"){
                    $date = "";
                }else{
                $dr=expdate($dd,1825); //ส่งค่าให้ฟังก์ชั่น วันที่ปัจจุบัน พร้อมจำนวนวัน
                $df=date("Y-m-d",$dr); //จัดรูปแบบวันที่ก่อนแสดง
                $date=displaydate($df);//แสดงวันที่ออกมา
                }
           ?> 
   <?php
    // Variables Date
   if ($dd == "0000-00-00"){
            $date2 = "";
        }else{       
    $start_date = $dd;
    $expire_date = $df;
    $today_date = date("Y-m-d");

    /* Start Date */
    $start_explode = explode("-", $start_date);
    $start_year = $start_explode[0];
    $start_month = $start_explode[1];
    $start_day = $start_explode[2];


   /* Expire Date */
   $expire_explode = explode("-", $expire_date);
   $expire_year = $expire_explode[0];
   $expire_month = $expire_explode[1];
   $expire_day = $expire_explode[2];

  /* Today Date */
   $today_explode = explode("-", $today_date);
   $today_year = $today_explode[0];
   $today_month = $today_explode[1];
   $today_day = $today_explode[2];

  $start = gregoriantojd($start_month,$start_day,$start_year);
  $expire = gregoriantojd($expire_month,$expire_day,$expire_year);
  $today = gregoriantojd($today_month,$today_day,$today_year);

  $date_current = $expire-$today; //หาวันที่ยังเหลืออยู่
  $date2 = $date_current;
        }
        
   ?>
         
          <!-- /.messages-menu -->
    <ul class="nav navbar-nav">
      <li><a href="../admin_gard_new/home.php"><span class="glyphicon glyphicon-education"></span> ระบบนักเรียน</a></li>
    </ul>
          <!-- Notifications Menu -->
         
             <?php 
              if ($date2 <= "90" ){
               ?>
           <li class="dropdown notifications-menu">
            <!-- Menu toggle button -->
            <a href="#" class="dropdown-toggle" data-toggle="dropdown">
              <i class="fa fa-bell-o"></i>
              <span class="label label-danger">1</span>
            </a>
            <ul class="dropdown-menu">
                <li class="header"><span class="label label-warning">คุณมี 1 การแจ้งเตือน</span></li>
              <li>
                <!-- Inner Menu: contains the notifications -->
                <ul class="menu">
                  <li><!-- start notification -->
                    <a href="#">
                      <i style="color:#FF0000;" class="fa fa-calendar-times-o"></i> เหลือเวลาอีก <?php echo $date2." วัน ใบประกอบวิชาชีพ";?>  
                      <p>
                       หมดอายุ
                    </p>
                    </a>

                  </li>
                  <!-- end notification -->
                </ul>
              </li>
              <li class="footer"><a href="#">ทั้งหมด</a></li>
            </ul>
          </li>
          <?php
               }else{  
                   
               ?>           
             <li class="dropdown notifications-menu">
            <!-- Menu toggle button -->
            <a href="#" class="dropdown-toggle" data-toggle="dropdown">
              <i class="fa fa-bell-o"></i>
              
            </a>
            <ul class="dropdown-menu">
                <li class="header"><span class="label label-info">คุณไม่มีการแจ้งเตือน</span></li>
              <li>
                <!-- Inner Menu: contains the notifications -->
                <ul class="menu">
                  <li><!-- start notification -->
                    <p class="text-center">
                  <i class="fa fa-folder-open-o" ></i>
                    </p>                   
                  </li>
                  <!-- end notification -->
                </ul>
              </li>
              <li class="footer"><a href="#">ทั้งหมด</a></li>
            </ul>
          </li>
       
             <?php
               } 
               ?>
          
          <!-- Tasks Menu -->

        
          <!-- User Account Menu -->
          <li class="dropdown user user-menu">
            <!-- Menu Toggle Button -->
            <a href="#" class="dropdown-toggle" data-toggle="dropdown">
              <!-- The user image in the navbar-->
                <?php
                 $pic_name = $s_picture;
                 if (empty($pic_name)){
                 $pic_name = 'noimg.jpg';
                  }
                  ?>
              <img src="dist/img/<?php echo $pic_name; ?>" class="user-image" alt="<?php echo $pic_name; ?>">
              <!-- hidden-xs hides the username on small devices so only the image appears. -->
              <span class="hidden-xs"><?php echo $s_name; ?>&nbsp; <?php echo $s_lastName; ?></span>
            </a>
            <ul class="dropdown-menu">
              <!-- The user image in the menu -->
              <li class="user-header">
                <img src="dist/img/<?php echo $pic_name; ?>" class="img-circle" alt="<?php echo $pic_name; ?>">

                <p>
                   <?php echo $s_titleName; ?><?php echo $s_name; ?>&nbsp; <?php echo $s_lastName; ?>
                  <small>ตำแหน่ง&nbsp; <?php echo $s_typePersonnel; ?> </small>
                </p>
              </li>
           
              </li>
              <!-- Menu Footer-->
              <li class="user-footer">
                <div class="pull-left">
                    <a href="show_teacheruser.php?teacherID=<?php echo $session_teacherID; ?>" class="btn btn-default btn-flat"><i class="fa fa-user-circle-o"></i>&nbsp;ข้อมูลส่วนตัว</a>
                </div>
                <div class="pull-right">
                    <a href="logout.php" class="btn btn-default btn-flat"><i class="fa fa-sign-out"></i>&nbsp;ออกจากระบบ</a>
                </div>
              </li>
            </ul>
          </li>
          <!-- Control Sidebar Toggle Button -->
          
        </ul>
      </div>
    </nav>
  </header>