在PHP中,为第二个数组中的每个匹配ID向第一个数组添加值之和
我有两个这样的阵列: 阵列1在PHP中,为第二个数组中的每个匹配ID向第一个数组添加值之和,php,arrays,sorting,multidimensional-array,Php,Arrays,Sorting,Multidimensional Array,我有两个这样的阵列: 阵列1 $array1 = Array ( 0 => Array ( 'ID' => 101, 'Code' => 1075, 'Date' => '2012-03-03 17:13:12.433' ), 1 => Array ( 'ID' => 103,
$array1 = Array
(
0 => Array
(
'ID' => 101,
'Code' => 1075,
'Date' => '2012-03-03 17:13:12.433'
),
1 => Array
(
'ID' => 103,
'Code' => 175,
'Date' => '2012-09-05 20:30:02.217'
),
2 => Array
(
'ID' => 109,
'Code' => 178,
'Date' => '2012-07-05 20:30:02.217'
)
);
阵列2
$array2 = Array
(
0 => Array
(
'Amount' => 1234,
'ID' => 101
),
1 => Array
(
'Amount' => 5656,
'ID' => 101
),
2 => Array
(
'Amount' => 1342,
'ID' => 103
),
3 => Array
(
'Amount' => 0,
'ID' => 0
)
);
我使用下面的代码在两个数组上执行联接:
$arr2 = array_column($array2, "ID");
$finalArray = array();
foreach($array1 as $arr){
$key = array_search($arr['ID'], $arr2);
if($key ===false){
$key = array_search(0, $arr2);
$array2[$key]['Found'] = "No";
}
else {
$array2[$key]['Found'] = "Yes";
}
unset($array2[$key]['ID']);
$finalArray[] = array_merge($arr,$array2[$key]);
}
print_r($finalArray);
使用上述代码的电流输出为:
finalArray
Array
(
[0] => Array
(
[ID] => 101
[Code] => 1075
[Date] => 2012-03-03 17:13:12.433
[Amount] => 1234 //considers only the first entry of ID 101 in array2
[Found] => Yes
)
[1] => Array
(
[ID] => 103
[Code] => 175
[Date] => 2012-09-05 20:30:02.217
[Amount] => 1342
[Found] => Yes
)
[2] => Array
(
[ID] => 109
[Code] => 178
[Date] => 2012-07-05 20:30:02.217
[Amount] => 0
[Found] => No
)
)
但是由于在array2中,ID 101有两个条目,但是上面的代码只对匹配ID进行第一次匹配
预期产出为:
所需输出
Array
(
[0] => Array
(
[ID] => 101
[Code] => 1075
[Date] => 2012-03-03 17:13:12.433
[Amount] => 6890 //sum of all the amounts(1234+5656)for matching ID 101
[Found] => Yes
)
[1] => Array
(
[ID] => 103
[Code] => 175
[Date] => 2012-09-05 20:30:02.217
[Amount] => 1342
[Found] => Yes
)
[2] => Array
(
[ID] => 109
[Code] => 178
[Date] => 2012-07-05 20:30:02.217
[Amount] => 0
[Found] => No
)
)
我不知道如何在这里做加法
代码应该为array2的每个匹配ID添加Amount feild,并将该金额合并到array1 Amount feild,如上面的预期输出所示
如何修改当前代码,使其提供所需的输出?如何:
$finalArray = array();
foreach ($array1 as $arr1)
{
$amount = 0;
foreach ($array2 as $key2 => $arr2)
{
if ($arr1['ID'] === $arr2['ID'])
{
$amount += $arr2['Amount'];
unset($array2[$key2]);
}
}
$finalArray[] = array_merge($arr1, array(
'Amount' => $amount,
'Found' => $amount ? "Yes" : "No"
));
}
print_r($finalArray);
输出:
Array
(
[0] => Array
(
[ID] => 101
[Code] => 1075
[Date] => 2012-03-03 17:13:12.433
[amount] => 6890
[found] => Yes
)
[1] => Array
(
[ID] => 103
[Code] => 175
[Date] => 2012-09-05 20:30:02.217
[amount] => 1342
[found] => Yes
)
[2] => Array
(
[ID] => 109
[Code] => 178
[Date] => 2012-07-05 20:30:02.217
[amount] => 0
[found] => No
)
)
如果您需要任何进一步的解释,请告诉我。请检查