OO Mysqli PHP數據未正確顯示

Question

我正在嘗試使用while循環在表中顯示信息，但是如果只有1個結果，則該表將不顯示任何內容。 如果大於1，將顯示結果-1。 例如，對於5個結果，它將僅顯示5。

我的查詢是：

$queryIndexInvoice = 
"SELECT * 
FROM invoices, clients, users
WHERE invoices.user_id = users.id
AND invoices.client_id = clients.id
AND invoices.estimate = 0
AND invoices.user_id = '$user_id'
AND deleted = 0
ORDER BY invoices.id
DESC LIMIT 5";

$resultIndexInvoice = $connect_db->query($queryIndexInvoice);
$rowIndexInvoice = $resultIndexInvoice->fetch_assoc();
$numIndexInvoice = $resultIndexInvoice->num_rows;

我的表是：

<tbody>
<?php while ($IndexInvoice = $resultIndexInvoice->fetch_assoc()) {?>    
    <tr class='table_items'>
    <td class='item_strip'></td>
    <th><input type='checkbox'></th>
    <td><?= $IndexEstimate['invoice_id'] ?></td>
    <td><?= $dateIndexEstimate ?></td>
    <td><?= $IndexEstimate['client_first']?> <?= $IndexEstimate['client_last']?></td>
    <td><?= $IndexEstimate['total'] ?></td>
    </tr>
<?php
}
?>
</tbody>

有人知道我在做什么錯嗎？

Answer 1

您的問題是您正在調用->fetch_assoc(); 在結果集上，在循環之前，因此當您進入循環時，內部指針位於返回的第二行。 您需要刪除$rowIndexInvoice = $resultIndexInvoice->fetch_assoc();

$resultIndexInvoice = $connect_db->query($queryIndexInvoice);
$rowIndexInvoice = $resultIndexInvoice->fetch_assoc(); <--Remove this line
$numIndexInvoice = $resultIndexInvoice->num_rows;