ขอสอบถามการแสดงจำนวนแถวของ Textbox ตามที่เขียนวนลูปค่ะ

<?php include 'Connection.php'; ?>
  <table>    
<?php $selectsql = "SELECT      dbo.COSTESTIMATION_HD.EstimationHDID, dbo.COSTESTIMATION_HD.EstimationHDRevision, dbo.COSTESTIMATION_HD.RFQHDID, 
                                                        dbo.COSTESTIMATION_HD.RFQHDRevision, dbo.COSTESTIMATION_HD.EstimationArea, dbo.COSTESTIMATION_HD.EstimationTotalMat, 
                                                        dbo.COSTESTIMATION_HD.EstimationTotalInstall, dbo.COSTESTIMATION_HD.EstimationTotalCost, dbo.COSTESTIMATION_HD.EstimationCostArea, 
                                                        dbo.COSTESTIMATION_HD.EstimationRemark, dbo.COSTESTIMATION_HD.EstimationCreator, dbo.COSTESTIMATION_HD.EstimationCreateTimestamp, 
                                                        dbo.COSTESTIMATION_HD.EstimationModifier, dbo.COSTESTIMATION_HD.EstimationModifiedTimestamp, dbo.COSTESTIMATION_DT.EstimationDTID, 
                                                        dbo.COSTESTIMATION_DT.CostID, dbo.COSTESTIMATION_DT.EstimationCostDetail, dbo.COSTESTIMATION_DT.EstimationPICMat, 
                                                        dbo.COSTESTIMATION_DT.EstimationCostMat, dbo.COSTESTIMATION_DT.EstimationPICInstall, dbo.COSTESTIMATION_DT.EstimationCostInstall, 
                                                        dbo.COSTESTIMATION_DT.EstimationRemarkDT
                                            FROM        dbo.COSTESTIMATION_HD LEFT OUTER JOIN
                                                        dbo.COSTESTIMATION_DT ON dbo.COSTESTIMATION_HD.EstimationHDID = dbo.COSTESTIMATION_DT.EstimationHDID AND 
                                                        dbo.COSTESTIMATION_HD.EstimationHDRevision = dbo.COSTESTIMATION_DT.EstimationHDRevision
                                            WHERE       (dbo.COSTESTIMATION_HD.EstimationHDID = 'ES0009') AND (dbo.COSTESTIMATION_HD.EstimationHDRevision = 'ES0009-01')";
                          $querysql = sqlsrv_query($Conn,$selectsql);
                          for($i=0;$i<=50;$i++){
                          while($resultEstimateDetail = sqlsrv_fetch_array($querysql)){ ?>
                        
                        <tr id="trestimation">
                            <td>
                                <select name="cost_id[]" id="cost_id[]" class="loginform_shorter">
                                    <option value="" selected="selected">Please Select</option>
                                     <?php $sqlCostMT="select * from COST_MT ";
                                            $queryCostMT=sqlsrv_query($Conn,$sqlCostMT) or die ("Error");
                                            while($resultCostMT=sqlsrv_fetch_array($queryCostMT))
                                            { ?>
                                            <option value="<?php echo $resultCostMT['CostID']; ?>"<?php if($resultEstimateDetail['CostID']==$resultCostMT['CostID']) echo 'selected="selected"'; ?>><?php echo $resultCostMT['CostName']; ?></option>
                                            <?php } ?>
                                </select>
                            </td>
                            
                            <td><input type="text" name="cost_detail[]" id="cost_detail[]" class="loginform_medium" autocomplete="off" value="<?php echo $resultEstimateDetail['EstimationCostDetail'] ?>" /></td>
                            <td width="90"><input type="text" name="picmaterial[]" id="picmaterial[]" class="loginform_short" autocomplete="off" value="<?php echo $resultEstimateDetail['EstimationPICMat']; ?>" /></td>
                            <td width="90"><input type="text" name="material[]" id="material[]" class="costmat loginform_short" autocomplete="off" value="<?php echo $resultEstimateDetail['EstimationCostMat']; ?>" onKeyUp="fncTotalMat();"/></td>
                            
                        </tr>
                          <?php }} ?>
  </table>