php - 从检索到的行生成多维数组

Question

我从 MySQL 数据库中检索到这些数据：

现在我想从上面检索到的行创建以下数组...

任何想法如何做到这一点？蒂亚！

Answer 1

好吧，最简单的方法是在 PHP 代码中手动对数据进行分组，例如：

$stm = $db->query('SELECT * FROM tbl;');
$result = array();
while($row = $stm->fetch()) {
    $result[$row['productcode']][] = $row['unit'];
}

var_dump($result);

Answer 2

使用对象结果，并使用 mysqli（或其他任何购买 mysql）

$my_array = array();

// Run Query here to get $result

while ($obj = mysqli_fetch_object($result)) {

    $my_array[$obj->Product_Code][] = $obj->Unit_Of_Measure;

}

Answer 3

运行此查询：

select productcode, group_concat(unitofmeasure separator ",") from product group by productcode

然后，当您在 PHP 中迭代结果时，使用该explode函数。

Answer 4

$result = mysql_query("select * from stack");
$my_array = array();
// Run Query here to get $result

while ($obj = mysql_fetch_array($result)) {

    $my_array[$obj['product_code']][] = $obj['unit'];

}

echo "<pre>";
print_r($my_array);
echo "</pre>";
exit;

输出

Array
(
    [1111] => Array
        (
            [0] => piece
            [1] => case
        )

    [2222] => Array
        (
            [0] => piece
        )

    [3333] => Array
        (
            [0] => piece
        )

    [8888] => Array
        (
            [0] => box
            [1] => pack
            [2] => piece
        )

)

Answer 5

好吧，您尝试一下，这应该可以

 $rs = mysql_query('SELECT * FROM tbl order by product_code asc');

 $arr = array();
 $num = 0;
 $strTemp = '';

 while($data = mysql_fetch_object($rs)) {
      if ($strTemp !=  $data->product_code) {
           $strTemp =  $data->product_code; 
           $num = 0;
      }
      $arr[$strTemp][$num] = $data->unit_of_measure;
      $num++;
 }