從foreach循環獲取總數+ mysql while循環

Question

我得到$ _post數組並在每次迭代上運行查詢，然後嘗試獲取累積總點數，似乎用最後一次迭代覆蓋總數。我該如何解決？

$full_total = 0; 
    foreach($postid as $key => $value){ 

     $array = explode(',', $value); 

     if($value[0]!=''){ 
     $id = $array[0]; 
     $query = "SELECT * FROM products WHERE id = '$id'"; 
     $result = mysqli_query($dbc, $query); 

      while ($row = mysqli_fetch_array($result)) { 
      echo '<tr valign="bottom">'; 
      echo '<td>' . stripslashes($row['rangeCode']) . '-' . stripslashes($row['pointsType']) . '</td>'; 
      echo '<td>' . stripslashes($row['category']) . '</a></td>'; 
      echo '<td>' . stripslashes($row['itemDesc']) . '</a></td>'; 
      echo '<td class="middle">' . stripslashes($row['points']) . '</a></td>'; 
      echo '</tr>'; 
      $total_donations = $row['points']; 
      } 
     } 
     } 
    $full_total += $total_donations; 
    echo $full_total; 

Answer 1

您必須插入$full_total在foreach循環中這樣

$full_total = 0; 
foreach($postid as $key => $value){ 

    $array = explode(',', $value); 

    if($value[0]!=''){ 
    $id = $array[0]; 
    $query = "SELECT * FROM products WHERE id = '$id'"; 
    $result = mysqli_query($dbc, $query); 

     while ($row = mysqli_fetch_array($result)) { 
     echo '<tr valign="bottom">'; 
     echo '<td>' . stripslashes($row['rangeCode']) . '-' . stripslashes($row['pointsType']) . '</td>'; 
     echo '<td>' . stripslashes($row['category']) . '</a></td>'; 
     echo '<td>' . stripslashes($row['itemDesc']) . '</a></td>'; 
     echo '<td class="middle">' . stripslashes($row['points']) . '</a></td>'; 
     echo '</tr>'; 
     $full_total += $row['points']; 
     } 
    } 
    } 
echo $full_total;