Question

我有一个名为purchase_details的表，其中的某些值具有相同的invoice_no。现在，我需要每个具有相同invoice_no的数据，并将它们输出到一个与invoice_no长度相同的输入字段中。

由于我是PHP新手，所以我尝试使用数组，但它显示的是最后一行的字母。

<table align="center" style="width:800px;">
      <thead>
             <tr>
                  <th>#</th>
                  <th style="text-align:center;">Item Name</th>
                  <th style="text-align:center;">Total Quantity</th>
                  <th style="text-align:center;">Quantity</th>
                  <th style="text-align:center;">Buy Price</th>
                  <th>Total</th>
             </tr>
       </thead>
       <tbody id="invoice_item">
       <?php 
           $query1="select * from purchase_details where invoice_no=$id";
           $query1_run=mysqli_query($connect , $query1);
           while($row=mysqli_fetch_array($query1_run)){
               $product_name = $row['product_name'];
           }
           echo $product_name[0];
       ?>
           <tr>
               <td><b id="number"></b></td>
               <td>
                   <select name="pid[]" class="form-control form-control-sm" required>
                       <option selected=""></option>
                   </select>
               </td>
               <td><input name="tqty[]" readonly type="text" class="form-control form-control-sm" ></td>   
               <td><input name="qty[]" type="text" class="form-control form-control-sm" required value=""></td>
               <td><input name="price[]" type="text" class="form-control form-control-sm" readonly value=""></td>
               <td></td>
           </tr>
        </tbody>
     </table>

Answer 1

您应该在表格数据之后结束while循环

<table align="center" style="width:800px;">
      <thead>
             <tr>
                  <th>#</th>
                  <th style="text-align:center;">Item Name</th>
                  <th style="text-align:center;">Total Quantity</th>
                  <th style="text-align:center;">Quantity</th>
                  <th style="text-align:center;">Buy Price</th>
                  <th>Total</th>
             </tr>
       </thead>
       <tbody id="invoice_item">
       <?php 
           $query1="select * from purchase_details where invoice_no=$id";
           $query1_run=mysqli_query($connect , $query1);
           while($row=mysqli_fetch_array($query1_run)){
               $product_name = $row['product_name'];

           echo $product_name[0];
       ?>
           <tr>
               <td><b id="number"></b></td>
               <td>
                   <select name="pid[]" class="form-control form-control-sm" required>
                       <option selected=""></option>
                   </select>
               </td>
               <td><input name="tqty[]" readonly type="text" class="form-control form-control-sm" ></td>   
               <td><input name="qty[]" type="text" class="form-control form-control-sm" required value=""></td>
               <td><input name="price[]" type="text" class="form-control form-control-sm" readonly value=""></td>
               <td></td>
           </tr>
           <?php } ?>
        </tbody>
     </table>

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1 个答案: