Vòng lặp đa cấp trong PHP

Sau rất nhiều suy nghĩ, tôi đã đưa ra một logic hoàn toàn phù hợp với nhu cầu của mình. Dữ liệu được lan truyền trong đàn accordian đúng cách. Nhưng các tấm đàn accordian không được thu gọn theo mặc định. Tôi đang đặt ra một câu hỏi mới cho điều đó. Đây là Liên kết

 <?php 
            $fistForLoopEnds = false;
            $secondForLoopEnds = false;
            $thirdForLoopEnds = false;
            $fourthForLoopEnds = false;
             ?>
          <div class="panel-group" id="accordion" role="tablist" aria-multiselectable="true">
           <?php foreach ($this->data2['distinct'] as $key) { ?>

          <div class="panel panel-<?php if ($fistForLoopEnds != true) {
              echo "danger";
              $panelId = "headingOne";
              $accodianId = "collapseOne";
              $accordionExpanded = "true";
          } elseif ($fistForLoopEnds == true && $secondForLoopEnds != true) {
              echo "warning";
              $panelId = "headingTwo";
              $accodianId = "collapseTwo";
              $accordionExpanded = "false\" class=\"collapsed";
          } elseif ($fistForLoopEnds == true && $secondForLoopEnds == true && $thirdForLoopEnds != true) {
              echo "info";
              $panelId = "headingThree";
              $accodianId = "collapseThree";
              $accordionExpanded = "false\" class=\"collapsed";
          } else { echo "success";
              $panelId = "headingFour";
              $accodianId = "collapseFour"; 
              $accordionExpanded = "false\" class=\"collapsed";
              }?>">
            <div class="panel-heading" role="tab" id="<?php echo $panelId; ?>">
              <h4 class="panel-title">
                <a role="button" data-toggle="collapse" data-parent="#accordion" href="#<?php echo $accodianId; ?>" aria-expanded="<?php echo $accordionExpanded; ?>" aria-controls="<?php echo $accodianId; ?>">
                  <?php echo $key->sidebar_category; ?>
                </a>
              </h4>
            </div>
            <div id="<?php echo $accodianId; ?>" class="panel-collapse collapse in" role="tabpanel" aria-labelledby="<?php echo $panelId; ?>">
              <div class="panel-body">
            <?php 
                if ($fistForLoopEnds != true) {
                    foreach ($this->data2['results_railways'] as $key) { ?>
                        <h5><a href="<?php echo base_url(); ?>home/railways/<?php echo $key->post_id; ?>"><?php echo $key->sidebar_title; ?></a></h5>
                    <?php }
                    $fistForLoopEnds = true;
                    goto a;
                } 
                elseif ($secondForLoopEnds != true) {
                    foreach ($this->data2['results_ssc'] as $key) { ?>
                         <h5><a href="<?php echo base_url(); ?>home/ssc/<?php echo $key->post_id; ?>"><?php echo $key->sidebar_title; ?></a></h5>
                     <?php  }
                    $secondForLoopEnds = true;
                    goto a;
                }
                elseif ($thirdForLoopEnds != true) {
                    foreach ($this->data2['results_banks'] as $key) { ?>
                         <h5><a href="<?php echo base_url(); ?>home/banks/<?php echo $key->post_id; ?>"><?php echo $key->sidebar_title; ?></a></h5>
                     <?php  }
                    $thirdForLoopEnds = true;
                    goto a;
                }
                elseif ($fourthForLoopEnds != true) {
                    foreach ($this->data2['results_upsc'] as $key) { ?>
                         <h5><a href="<?php echo base_url(); ?>home/upsc/<?php echo $key->post_id; ?>"><?php echo $key->sidebar_title; ?></a></h5>
                     <?php  }
                    $fourthForLoopEnds = true;
                    goto a;
                }
                a:
             ?>
              </div>
            </div>
          </div>
           <?php } ?>
          </div>