ขอถามเรื่องการ แปลงข้อมูล ใน Array หน่อยนะครับพอดีว่างงมาหลายวันแล้วครับ

              <?php
              $sql = "SELECT * FROM `bk_equipment` WHERE `status`='1'";
              $query = $mysqli->query($sql);
              $num_rows = mysqli_num_rows($query);
              ?>
              <div class="table-responsive">
                <table class="table table-hover table-bordered">
                  <thead>
                    <tr bgcolor="#0083CA">
                      <td width="100" align="center"><font color="#FFFFFF">อุปกรณ์ในห้อง          </font></td>
                      <td width="100" align="center"><font color="#FFFFFF">สถานะ          </font></td> 
                    </tr>
                  </thead>
                  <?php
                    while ($rows = mysqli_fetch_array($query))
                    {
                      ?>
                      <tr bgcolor="#EEEEEE">
                        <td><input  readonly type="text" name="id_equipment[]" class="form-control" id="id_equipment" 
                          value="<?php echo $rows["id_equipment"];?>"></td>
                        <?php
                      }
                      ?>
                    </table>
                  </div>

  พอดีว่าโค้ดข้างบนผิด 
<?php
              $sql = "SELECT * FROM `bk_equipment` WHERE `status`='1'";

              $query = $mysqli->query($sql);
              $num_rows = mysqli_num_rows($query);
              ?>
              <div class="table-responsive">
                <table class="table table-hover table-bordered">
                  <thead>
                    <tr bgcolor="#0083CA">
                      <td width="100" align="center"><font color="#FFFFFF">อุปกรณ์ในห้อง          </font></td>
                      <td width="100" align="center"><font color="#FFFFFF">สถานะ          </font></td> 
                    </tr>
                  </thead>

                  <?php
                    while ($rows = mysqli_fetch_array($query))
                    {

                      ?>
                      <tr bgcolor="#EEEEEE">
                        <td><input  readonly type="text" name="id_equipment[]" class="form-control" id="id_equipment" 
                          value="<?php echo $rows["equipment_name"];?>"></td>

                        <td><select id="id_status_em" name="id_status_em[]" class="form-control" placeholder="เจ้าหน้าที่ดูแลห้อง">

                          <?php
                          $strSQL = "SELECT * FROM `bk_equipment_status` ORDER BY `id_status_em` ASC";
                          $objQuery=$mysqli->query($strSQL); 
                          while($objResuut = mysqli_fetch_array($objQuery))
                          {

                            ?>
                            <option value="<?php echo $objResuut["id_status_em"];?>"><?php echo $objResuut["status_name"];?></option>
                            <?php
                          }
                          ?>
                        </select></td>

                        <?php
                      }

                      ?>
                    </table>

                  </div>

$idroom = $_POST['idroom'];  
//$id_status_em = $_POST['id_status_em'];  
//echo $id_equipment;

// print array ออกมาดู
print_r($_POST);
foreach($_POST['id_equipment'] as $row=>$art) {
            $id_equipment = mysql_real_escape_string($_POST['id_equipment'][$row]);
    foreach($_POST['id_status_em'] as $row=>$art){
          $id_status_em = mysql_real_escape_string($_POST['id_status_em'][$row]);
        }
        $sql = "insert into bk_room_equipment (idroom,id_equipment,id_status_em) values ('$idroom','$id_equipment','$id_status_em') ";
 
$result = mysqli_query($mysqli, $sql) or die ("Error in query: $sql " . mysqli_error());

       // echo $id_equipment;
       // echo $id_status_em; 


    }

<input  readonly type="text" name="id_equipment[<?php echo $rows["id_equipment"];?>]" class="form-control" id="id_equipment<?php echo $rows["id_equipment"];?>"    value="<?php echo $rows["equipment_name"];?>">

foreach($_POST['id_equipment'] as $row=>$art) {

<input  readonly type="text" name="id_equipment[]" class="form-control" id="id_equipment"   
                        value="<?php echo $rows["equipment_name"];?>">
<input  type="hidden" name="h_id_equipment[]"  value="<?php echo $rows["id_equipment"];?>">