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如何从插入的sql对2d数组php进行排序_Php_Sql_Arrays_Sorting - Fatal编程技术网

如何从插入的sql对2d数组php进行排序

如何从插入的sql对2d数组php进行排序,php,sql,arrays,sorting,Php,Sql,Arrays,Sorting,这是我插入的sql到数组 $e=0; while ($row45 = mysqli_fetch_array($res1)) { $proIdArr0["id"][$e]=$row45['proId']; $proIdArr0["qty"][$e]=$row45["proQty"]; $e++; } print_r($proIdArr0); 它会打印出来 Array ( [i

这是我插入的sql到数组

$e=0;
while ($row45 = mysqli_fetch_array($res1)) {
                $proIdArr0["id"][$e]=$row45['proId'];
                $proIdArr0["qty"][$e]=$row45["proQty"];
                $e++;
            }
print_r($proIdArr0);
它会打印出来

Array ( 
[id] => Array ( 
    [0] => 15
    [1] => 13
    [2] => 16 ) 

[qty] => Array ( 
    [0] => 54
    [1] => 84
    [2] => 54 ) 
)
我想按id排序,所以它将是例如这个输出

id | qty
-------
13 | 84
15 | 54
16 | 54

您可以组合阵列,然后对其进行排序


将id作为键,数量作为值,根据id进行排序,然后进行反向工程以获得所需的结果

<?php
$com = array_combine($proIdArr0["id"], $proIdArr0["qty"]);
ksort($com);
foreach($com as $k=>$v)
{
$proIdArr0["id"]=$k;
$proIdArr0["qty"]=$v;
}

但是在查询中使用order by是更可取的解决方案。

为什么不构造sql以使记录集具有正确的顺序?使用order by id对查询结果排序不是更简单吗?这就是问题所在
array(3) {
  [13]=>
  int(84)
  [15]=>
  int(54)
  [16]=>
  int(54)
}
<?php
$com = array_combine($proIdArr0["id"], $proIdArr0["qty"]);
ksort($com);
foreach($com as $k=>$v)
{
$proIdArr0["id"]=$k;
$proIdArr0["qty"]=$v;
}