PHP로 HTML에서 값을 표시하는 방법 echo

Question

도와주세요. PHP에서 반향을 사용하여 html로 값을 표시하는 데 문제가 있습니다.

여기 내 코드입니다. 입력 상자에서

<input type="text" value ="123" id="addorderquantity[<?php echo $count - 1; ?>]" name="quantity[<?php echo $count - 1; ?>]" onChange="addordercalculate(<?php echo $count - 1; ?>)"> 

, 값은 항상 심지어 "0"으로 표시되었다 나는 이미를 "123"

하지만 난 아이디에 "addorderquantity[<?php echo $count; ?>]"(없는 마이너스 1) 를 작성하는 경우 값이 올바르게 작동 할 수 있습니다.

이것은 대단히 감사합니다,

<?php 
        $queryorder = "select * from orderitem,product where (orderitem.productid = product.productid) and orderitem.orderid = '$orderid' and orderitem.actype != 'D'"; 
        $resultorder = mysql_query($queryorder); 
        $count = 1; 
        while ($order = mysql_fetch_array($resultorder)){ 
         ?> 
         <tr> 
          <td><?php echo $count; ?></td> 
          <td> 
           <select id="addordercategory[<?php echo ($count - 1); ?>]" name="category[<?php echo ($count - 1); ?>]" onChange="loadproduct(<?php echo ($count - 1); ?>)"> 
           <option></option> 
           <?php 
            for($i=0; $i<count($datacategorys)-1; $i++){ 
             $data1 = explode ("||",$datacategorys[$i]); 
             if ($order['category'] == $data1[0]){ 
              echo "<option value='$data1[0]' selected>$data1[1]</option>"; 
             } 
             else{ 
              echo "<option value='$data1[0]'>$data1[1]</option>"; 
             } 
            } 
           ?> 
           </select> 
          </td> 
          <td> 
           <select id="addorderproduct[<?php echo ($count - 1); ?>]" name="product[<?php echo ($count - 1); ?>]" onChange="loadpriceweight(<?php echo ($count - 1); ?>)"> 
            <?php 
             $queryproduct = "select * from product where category = '".$order['category']."' and actype != 'D'"; 
             $resultproduct = mysql_query($queryproduct); 
             while ($product = mysql_fetch_array($resultproduct)){ 
              if ($order['productid'] == $product['productid']){ 
               echo "<option value='".$product['productid']."' selected='selected'>".$product['name']."</option>"; 
              } 
              else{ 
               echo "<option value='".$product['productid']."'>".$product['name']."</option>"; 
              } 
             } 
            ?> 
           </select> 
           <script type="text/javascript">loadpriceweight(<?php echo ($count - 1);?>);</script> 
          </td> 
          <td> 
           <input type="hidden" id="addorderprice[<?php echo ($count - 1); ?>]" name="price[<?php echo ($count - 1); ?>]" value="0"> 
           <input type="text" id="addorderdisprice[<?php echo ($count - 1); ?>]" disabled="disabled" value=""> 
          </td> 
          <td> 
           <input type="hidden" id="addorderweight[<?php echo ($count - 1); ?>]" name="weight[<?php echo ($count - 1); ?>]" value="0"> 
           <input type="text" id="addorderdisweight[<?php echo ($count - 1); ?>]" disabled="disabled" value="0"> 
          </td> 
          <td><input type="text" value ="123" id="addorderquantity[<?php echo ($count - 1); ?>]" name="quantity[<?php echo ($count - 1); ?>]" onChange="addordercalculate(<?php echo ($count - 1); ?>)"></td> 
          <td><input type="text" id="addorderdiscount[<?php echo ($count - 1); ?>]" name="discount[<?php echo ($count - 1); ?>]" value="0" onChange="addordercalculate(<?php echo ($count - 1); ?>)"></td> 
          <td><input type="text" id="addorderdistotprice[<?php echo ($count - 1); ?>]" disabled="disabled" value="0"><input type="hidden" id="addordertotprice[<?php echo ($count - 1); ?>]" name="totprice[<?php echo ($count - 1); ?>]" value="0"></td> 
          <td><input type="text" id="addorderdistotweight[<?php echo ($count - 1); ?>]" disabled="disabled" value="0"><input type="hidden" id="addordertotweight[<?php echo ($count - 1); ?>]" name="totweight[<?php echo ($count - 1); ?>]" value="0"></td> 
          <td><input type="button" id="addorderhapus[<?php echo ($count - 1); ?>]" value="hapus" onClick="addorderhapus(<?php echo ($count - 1); ?>)"></td> 
         </tr> 
         <script type="text/javascript">addordercount = <?php echo $count;?>;</script> 
         <?php 
         $count++; 
        } 
       ?> 

이 제발 도와주세요 코드의 전부입니다.

Answer 1

$count - 1 (<?php echo ($count - 1); ?>) 주위에 대괄호를 넣으려고 했습니까?

... 
$resultorder = mysql_query($queryorder); 
$count = 1; 
while ($order = mysql_fetch_array($resultorder)){ 
... 

이것은 당신이 일을 빼기 경우는 0이 원인이됩니다 :

Answer 2

난 당신이 명시 적으로 1 $count을 설정하여 업데이트에주의했다?