如何在mysql和PHP的表的列內添加每個數據？
[英]How to add each data inside a column of a table in both mysql and PHP?
問題描述
我有一個名為“ sale”的列，在sales列中有每個客戶的銷售清單。 如何將每個客戶的所有銷售額相加，然后在表下顯示總銷售額？
> ?php
include('conn.php');
$sql = "SELECT * FROM sales";
$result = mysqli_query($conn,$sql);
$count = mysqli_num_rows($result);
if($count>0)
{
echo "<html><head></head><body><table border=1>
<th>CODE</th>
<th>Employee Name</th>
<th>Customer</th>
<th>Sales</th>";
while($row = mysqli_fetch_assoc($result))
{
echo"<tr>";
echo"<td>".$row['empcode']."</td>
<td>".$row['fullname']."</td>
<td>".$row['customercode']."</td>
<td>".$row['sales']."</td></tr>";
}
echo"</table>";
}
?>
3 個解決方案
解決方案1
0 已采納 2018-08-30 04:19:05
您需要在循環外添加一個變量，並在每次循環中將其遞增
$totalSales = 0;
if($count>0)
{
echo "<html><head></head><body><table border=1>
<th>CODE</th>
<th>Employee Name</th>
<th>Customer</th>
<th>Sales</th>";
while($row = mysqli_fetch_assoc($result))
{
echo"<tr>";
echo"<td>".$row['empcode']."</td>
<td>".$row['fullname']."</td>
<td>".$row['customercode']."</td>
<td>".$row['sales']."</td></tr>";
$totalSales += $row['sales'];
}
echo"</table>";
}
解決方案2
0 2018-08-30 04:21:56
對於MySQL，您可以使用SUM組功能。
例如SELECT SUM(sales) as total FROM table_name;
對於PHP，您可以執行以下操作：
$total = 0;
while($row = mysqli_fetch_assoc($result))
{
$total += $row['sales'];
echo"<tr>";
echo"<td>".$row['empcode']."</td>
<td>".$row['fullname']."</td>
<td>".$row['customercode']."</td>
<td>".$row['sales']."</td></tr>";
}
// Print total at the end
echo "<tr>";
echo "<td colspan='3'>Total</td>";
echo "<td>".$total."</td>";
echo "</tr>";
希望這可以幫到你。
解決方案3
0 2018-08-30 05:03:52
跑
$sql = "SELECT *, SUM(sales) AS total_sale FROM sales GROUP BY客戶代碼";
代替
$sql = "SELECT * FROM sales";
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