...编辑 我有一个HTML表,它从数据库中的不同表(使用Join语句)获取它的值(输出)。我希望在循环进行时实现的是使用行的先前值来生成新值。 让我们使用两列,假设我们有 循环中有5行
我希望我的Total_Qty随着循环的进行而减少,即Total_Qty - Shipped_Qty,因此下一行的新Total_Qty将是例如
300 - 50 = 250,
then the next will be
250 -25 = 225, and
225 - 100 = 115 and lastly
115 - 80 = 35
我的实际输出
Date Order| Item Name| Total_Qty} Shipped_Qty| Unit_Price| Amount| Item_Balance
24th March| 25X25 1/2mm | 300 | 50 | | 5000 | 3250000 | 250
24th March| 25X25 1/2mm | 300 | 25 | | 5000 | 3375000 | 275
27th March| 25X25 1/2mm | 300 | 100| | 5000 | 3000000 | 200
27th March| 25X25 1/2mm | 300 | 80 | | 5000 | 310000000 | 220
我的模特
function get_join_item_vendor1($vendor_name, $item_name){
$this->db->select('shipments.date_created as dateCreated, shipments.id as ship_id, shipments.*, accounts.*, items.*, customers.* , vendors.*, shipments.current_quantity AS ship_current_quantity, remaining_stocks.quantities AS currentQuantity, shipments.*, store_stocks.*' );
$this->db->from('shipments');
$this->db->join('accounts', 'accounts.id = shipments.rep_id', 'left');
$this->db->join('items', 'items.id = shipments.item_id', 'left');
$this->db->join('customers', 'customers.id = shipments.customer_id', 'left');
$this->db->join('vendors', 'vendors.id = shipments.vendor_id', 'left');
$this->db->join('remaining_stocks', 'remaining_stocks.item_id = shipments.item_id', 'left');
$this->db->join('store_stocks', 'store_stocks.item_id = shipments.item_id', 'left');
$this->db->where('items.id', $item_name);
$this->db->where('vendors.vendor_name', $vendor_name);
$this->db->group_by('shipments.shipped_quantity');
$this->db->order_by('shipments.id');
$query = $this->db->get();
return $query->result();
}
我的查看文件
<table class="table table-striped">
<thead>
<tr>
<th>Date Order</th>
<th>Item Name</th>
<th>Total Item Qty</th>
<th>Shipped Item Qty</th>
<th>Unit Price</th>
<th>Amount</th>
<th>Balance</th>
</tr>
</thead>
<tbody>
<?php
foreach ($stocks as $stock) {?>
<tr>
<td><?= date('jS F Y',$stock->dateCreated) ?></td>
<td><?=$stock->item_name ?></td>
<td><?=$stock->quantities ?></td>
<td><?=$stock->shipped_quantity ?></td>
<td><?=$stock->unit_price ?></td>
<td><?='₦'.number_format(($stock->unit_price * $total_quantity->total_qty) - ($stock->unit_price * $stock->shipped_quantity) , 2) ?></td>
<td> <?= $stock->quantities - $stock->shipped_quantity; ?></td>
</tr>
<?php } ?>
</tbody>
</table>
请帮助我们将不胜感激。希望我的插图现在更加清晰。
由于
PS:我正在使用codeigniter。谢谢你迅速回复
答案 0 :(得分:0)
如果我找对你,那么你可能想做这件事。
$array1 = array (300, 280, 240, 205);
$array2 = array (20, 40, 35, 35);
$length = count($array1);
for ($x = 0; $x < $length; $x++) {
echo $array1[$x] - $array2[$x];
echo "<br>";
}
如果你没有从表中获取数组作为默认数据,你可以简单地将它们传递给数组。
答案 1 :(得分:0)
示例不清楚,但我会根据我的理解尝试解释,我假设我们需要v1和v2来计算新的v1而你没有办法按索引访问数组。而不是使用先前的迭代值计算值。我将使用当前迭代值计算下一个v1。
$result = mysqli_query($connection,"Your query");
$next_v1 = false;
while($row = mysqli_fetch_row($result)){
if($next_v1 === false )
$next_v1 = $row[0]; // 300 in our case
$v2 = $row[1]; // 20
print($next_v1, $v2);// custom function that will print the row;
$next_v1 = $next_v1 - $v2; // now next value is 280
}
更新一个
在您的情况下,您可以创建一个新变量来存储累计的已装运项目。
<table class="table table-striped">
<thead>
<tr>
<th>Date Order</th>
<th>Item Name</th>
<th>Total Item Qty</th>
<th>Shipped Item Qty</th>
<th>Unit Price</th>
<th>Amount</th>
<th>Balance</th>
</tr>
</thead>
<tbody>
<?php
$shipped_accumulator = 0;
foreach ($stocks as $stock) {?>
<tr>
<td><?= date('jS F Y',$stock->dateCreated) ?></td>
<td><?=$stock->item_name ?></td>
<td><?=$stock->quantities - $shipped_accumulator ?></td>
<td><?=$stock->shipped_quantity ?></td>
<td><?=$stock->unit_price ?></td>
<td><?='₦'.number_format(($stock->unit_price * $total_quantity->total_qty) - ($stock->unit_price * $stock->shipped_quantity) , 2) ?></td>
<td> <?= $stock->quantities - $stock->shipped_quantity; ?></td>
</tr>
<?php
$shipped_accumulator += $stock->shipped_quantity;
} ?>
</tbody>
</table>
所以这个表就像这样
Date Order | Total_Qty | shipped_accumulator | Shipped_Qty | Unit_Price | Amount | Item_Balance
24th March | 300 - 0 = 300 | 0 | 50 | 5000 | 3250000 | 300 - 50 - 0 = 250
24th March | 300 - 50 =250 | 50 | 25 | 5000 | 3375000 | 300 - 25 - 50 = 225
27th March | 300 - 75 = 225 | 75 | 100 | 5000 | 3000000 | 300 - 100 - 75 = 125
27th March | 300 - 175 = 125 | 175 | 80 | 5000 | 310000000 | 300 - 80 - 175 = 45