我有一个这样的数组：
Array
(
[0] => Array
(
[15] => Due
[50] => Due
)
[1] => Array
(
[20] => Cancelled
[30] => Due
)
)
我想以表格格式在父数组的基础上显示到期金额的添加，如下所示：
Orders DueAmount
0 65
1 95
我尝试过的代码：
<table border="1" cellpadding="5">
<thead>
<tr>
<th>Orders</th>
<th>DueAmount</th>
</tr>
</thead>
<tbody>
<?php
$tot = 0;
for ($i=0; $i < count($ar); $i++) { // $ar is the parent array
foreach ($ar[$i] as $key => $value) {
if ($value === "Due") {
$amt = $tot += $key;
echo "<tr>";
echo "<td>".$i."</td>";
echo "<td>".$amt."</td>";
echo "</tr>";
}
}
}
?>
</tbody>
</table>
执行上述代码时，输出为：
Orders DueAmount
0 15
0 65
1 95
我该如何解决此问题？请帮帮我。
更新1：
在vascowhile的评论之后：我得到以下输出
Orders Due Amount
0 15
0 50
1 30
只需将回声部分从前臂循环中移出即可：
for ($i=0; $i < count($ar); $i++) { // $ar is the parent array
foreach ($ar[$i] as $key => $value) {
if ($value === "Due") {
$amt = $tot += $key;
}
}
echo "<tr>";
echo "<td>".$i."</td>";
echo "<td>".$amt."</td>";
echo "</tr>";
}
这个怎么样：
假设这是您的阵列：
$ar = array(
array (
15 => 'Due',
50 => 'Due' ),
array (
20 => 'Cancelled',
30 => 'Due' )
);
我将您的标记修改为：
<table border="1" cellpadding="5">
<thead>
<tr>
<th>Orders</th>
<th>DueAmount</th>
</tr>
</thead>
<tbody>
<?php
// This variable will handle the due's
$due = 0;
foreach ($ar as $row_number => $data) {
// I used the main key of your array as row counter, or if you don't trust this
// you can just declare a counter outside the foreach
// and increment here. This will solve your first bug.
$row_number++;
foreach ($data as $amount => $header) {
// Same as your logic, accumulate the due in a variable.
// This will solve your second problem.
if ($header == 'Due') {
$due += $amount;
}
}
echo '<tr>';
echo "<td>{$row_number}</td>";
echo "<td>{$due}</td>";
echo '<tr>';
}
?>
</tbody>
</table>