Question

我在使用++增量打印表时遇到了一些麻烦。它目前打印出每行的标题，如下所示：

Year    Amount owed
1   $234,500
Year    Amount owed
2   $218,473
Year    Amount owed
3   $201,901
...

这是代码：

while ($current_owed > 0) {
$current_owed = (($current_owed*$annual_interest)+$current_owed)-$yearly_payment; 
print "<table border=\"1\">
<tr>
<th>Year</th>
<th>Amount owed</th>
</tr>
<tr><td>" . $year . "</td><td>$currency" . number_format($current_owed, 0) . "</td>
</tr>
</table>";
$year++;
}

Answer 1

是的，因为您打印<th>Year</th> <th>Amount owed</th＆gt;在while循环中，这意味着您打印每行的表头。把

<th>Year</th>
<th>Amount owed</th>

在循环之前

应该没问题

Answer 2

帮自己一个忙，并格式化您的代码，以便更容易阅读和理解。使调试这样的小问题变得更加容易。

<table border="1">
    <tr>
        <th>Year</th>
        <th>Amount owed</th>
    </tr>
    <?php
    while ($current_owed > 0) {
        $current_owed = (($current_owed*$annual_interest)+$current_owed)-$yearly_payment; 
        ?>
        <tr>
            <td><?php echo $year ?></td>
            <td><?php echo $currency.number_format($current_owed, 0) ?></td>
        </tr>
        <?php
        $year++;
    }
    ?>
</table>

麻烦在html表中打印增量

2 个答案: