Revonzy Mini Shell

<?php
require_once('header.php');

require_once('header-left-section.php');

	$flag				=	0;
	$success_flag		=	0;
	$class_error		=	0;
	$division_error		=	0;
	$class				=	"";
	$division			=	"";
	$medium				=	"";
	$medium_error		=	"";
	if(isset($_POST['submit_btn']))
	{
		$class			=	$_POST['class'];
		$division		=	$_POST['division'];
		$medium			=	$_POST['medium'];
		echo $medium;
		if($class=="Select Class")
		{
			$class_error	=	1;
			$flag	=	1;
		}
		if($division=="Select Division")
		{
			$division_error	=	1;
			$flag	=	1;
		}
		if($medium=="Select Medium")
		{
			$medium_error	=	1;
			$flag	=	1;			
		}
		if($flag==0)
		{	
			//$db_name	=	$db->get_student_name_from_id($stud_id);
			
			$_SESSION['inserted_student_class']			=	$class;
			$_SESSION['inserted_student_division']		=	$division;
			$_SESSION['year']							=	$medium;
			
		?>
		<script>
			
			window.location = "multiple_id_card.php";
		</script>
		<?php
			//header("Location:multiple_id_card.php");
			
		}
	}
?> 
 
 <!-- Content Wrapper. Contains page content -->
  <div class="content-wrapper">
    <!-- Content Header (Page header) -->
    <section class="content-header">
      <div class="container-fluid">
        <div class="row mb-2">
          <div class="col-sm-6">
            <h1>MULTIPLE ID CARD</h1>
          </div>
          <div class="col-sm-6">
            <ol class="breadcrumb float-sm-right">
              <li class="breadcrumb-item"><a href="dashboard.php">Home</a></li>
              <li class="breadcrumb-item active">Student</li>
			  <li class="breadcrumb-item active">Multiple ID Card</li>
            </ol>
          </div>
        </div>
      </div><!-- /.container-fluid -->
    </section>
	
    <!-- Main content -->
	 
 <form method="POST" autocomplete="off" action="<?php echo $_SERVER['PHP_SELF'] ?>">
    <section class="content">
      <div class="row">
        <div class="col-md-12">
          <div class="card card-primary">
            <div class="card-header">
              <h3 class="card-title">Multiple Id Card</h3>

              <div class="card-tools">
                <button type="button" class="btn btn-tool" data-card-widget="collapse" data-toggle="tooltip" title="Collapse">
                  <i class="fas fa-minus"></i></button>
              </div>
            </div>
				<?php
					if($class_error==1)
					{
				?>
					
					<div class="alert alert-danger">
					<span class="alert-link">Failed! </span>Please Select Department.
					</div>	
				<?php
					}
				?>
				
				<?php
					if($division_error==1)
					{
				?>
					
					<div class="alert alert-danger">
					<span class="alert-link">Failed! </span>Please Select Division.
					</div>	
				<?php
					}
				?>
				<?php
					if($medium_error==1)
					{
				?>
					
					<div class="alert alert-danger">
					<span class="alert-link">Failed! </span>Please Select Year.
					</div>	
				<?php
					}
				?>	
          <div class="card-body">
            <div class="row">
			 <div class="form-group col-lg-3">
					<label>Select Department:</label>
					<select name="class" class="form-control">
						<?php
							if($class!="")
							{
								$class_data = $db->get_class_title_master_details($class);
								$res_class 	= $class_data[1];
								
						?>
						<option value="<?php echo $class; ?>"><?php echo $res_class; ?></option>
						<?php
							}
						?>
						<option value="Select Class"> Select Department</option>
						<?php
							$class_data	=	array();
				
							$class_data	=	$db->get_all_class_title_master_data();
							
							if(!empty($class_data))
							{
								$counter	=	0;
								
								foreach($class_data as $record)
								{
									$res_id				=	$class_data[$counter][0];
									$res_class_title 	=	$class_data[$counter][1];
									$res_date			=	$class_data[$counter][2];
									
							?>
							<option value="<?php echo $res_id; ?>"><?php echo $res_class_title; ?></option>
							<?php
									$counter++;
								}
							}
						?>											
					</select>
					<!--<span class="error_indicator"><?php echo $main_title_error; ?></span>-->
				</div>
				<div class="form-group col-lg-3" >
				<label>* Select Year:</label>
				<select class="form-control" name="medium">
					<?php
						if($medium!="")
						{
					?>
					<option value="<?php echo $medium; ?>"><?php echo $medium; ?></option>
					<?php
						}
					?>
					<option value="Select Medium">Select Year</option>
					<option value="1st Year">1st Year</option>
					<option value="2nd Year">2nd Year</option>
					<option value="3rd Yeaar">3rd Yeaar</option>
				</select>
			</div>
				<div class="form-group col-lg-3">
					<label> Division: </label>
					<select name="division" class="form-control">
						<?php
							if($division!="")
							{
								
						?>
						<option value="<?php echo $division; ?>"><?php echo $division; ?></option>
						<?php
							}
						?>
						<option value="Select Division">Select Division</option>
						<?php
				
							$division_data	=	array();
							
							$division_data	=	$db->get_all_division_master_data();
							
							if(!empty($division_data))
							{
								$counter	=	0;
								
								foreach($division_data as $record)
								{
									$res_id			=	$division_data[$counter][0];
									$res_division	=	$division_data[$counter][1];
									$res_date		=	$division_data[$counter][2];
									
							?>
							<option value="<?php echo $res_division; ?>"><?php echo $res_division; ?></option>
						<?php
								$counter++;
								}
							}
						?>	
					</select>
				</div>
				
			<div class="form-group col-lg-3">
				<label>-</label><br />
				<button type="submit" class="btn btn-success" name="submit_btn">Generate Multiple ID Card</button>
			</div>
			</div>
              <!-- /.col --
            </div>-->
            <!-- /.row -->
              </div>
              <!-- /.col -->
            </div>
            <!-- /.row -->
      
    </section>
	</form>					

      </div>
      <!-- /.card -->
  </div>
  </div>
  </section>
  <?php
require_once('footer.php');
?>