我希望能夠通過10乘法
乘以所有例如價格從我的數據庫,然後乘以總下面的代碼做加法而不是相乘
<?php
$d = $_GET['d'];
$con = mysql_connect("localhost","username","password");
if (!$con)
{
die('Could not connect: ' . mysql_error());
}
mysql_select_db("databasename", $con);//
$sql= "SELECT SUM(prices) FROM tablename WHERE Date = '$d' AND Prices >0.20 AND Type= 'sold'";
$results = mysql_query($sql);
$row = mysql_fetch_array($results);
echo $row[0]*10;
mysql_close($con);
?>
例如
id prices
1 25
2 36
3 45
即我想25 * 36 * 45 * 10和25未+ 36 + 45 * 10
ħ任何人都可以幫忙
選擇4 * 5 AS'測試「或SELECT col1 * col2 AS'test' – djot 2011-12-16 19:29:37
此外,爲了安全起見,您需要轉義變量$ d以防止sql注入。 `$ d = mysql_real_escape_string($ _ GET ['d']);` – dchrastil 2011-12-16 19:41:28
mysql沒有array_product – ajreal 2011-12-16 19:45:24