php - 将 GROUP BY 结果作为分隔变量返回

Question

我是 mysql/php 的新手，我正在尝试使用

构建自定义查询

$query = "SELECT expo_location,  SUM(total_sale) FROM _sales_db WHERE day IN('Friday') GROUP BY expo_location"; 

$result = mysql_query($query) or die(mysql_error());

// Print out result
while($row = mysql_fetch_array($result)){
  echo "<span style='font-weight:normal;color:#cfcfcf;'>"."Total ". $row['expo_location']. " = $". number_format((float)$row['SUM(total_sale)'], 2, '.', '')."</span>";
  echo "<br />";
}

哪个返回:

//
Total Canton = $295.94
Total Malone = $980.24
Total Massena = $1187.10
//

我希望使用 GROUP BY 将“expo_location”名称作为变量返回。

Example
$Canton = 
$Malone = 
$Massena =

总而言之，将所有条目放在一列中并将它们组合在一起并将它们作为变量返回？

Answer 1

下面的代码将为您创建一个关联数组，这样您就可以执行类似于 $expo_locations['Canton'] 的操作，其中将包含 295.94

    $query = "SELECT expo_location,  SUM(total_sale) FROM _sales_db WHERE day IN('Friday') GROUP BY expo_location"; 

    $result = mysql_query($query) or die(mysql_error());

    $expo_locations = array();

    // Print out result
    while($row = mysql_fetch_array($result)){
        $expo_locations[$row['expo_location']] = number_format((float)$row['SUM(total_sale)'], 2, '.', '');
    }