Question

PHP FOREACH 循环出来的数组，我现在想进行合并 并且相加。 代码如下

$new_arr[]=array("new_id"=> $arr[$key][$keys],"new_value"=>$newvalue);

在foreach内这个是我定义的数组，

我在循环外，
var_dump($new_arr); 后 所出现的结果是，

array(4) {
[0]=> array(2) { ["new_id"]=> string(1) "1" ["new_value"]=> float(0.5) }
[1]=> array(2) { ["new_id"]=> string(1) "2" ["new_value"]=> float(0.5) }
[2]=> array(2) { ["new_id"]=> string(1) "1" ["new_value"]=> int(1) }
[3]=> array(2) { ["new_id"]=> string(1) "1" ["new_value"]=> float(0.5) }
[4]=> array(2) { ["new_id"]=> string(1) "6" ["new_value"]=> float(0.5) }
}
我现在想实现的最终结果是这样的：

array(2) { ["new_id"]=> string(1) "1" ["new_value"]=> int(2) }
array(2) { ["new_id"]=> string(1) "2" ["new_value"]=> float(0.5)}
array(2) { ["new_id"]=> string(1) "6" ["new_value"]=> float(0.5)}
// 解释一下： 就是new_id 这一列 把所有 相同的值 合并到一起， 并且 对应的
new_value 这一列进行相加。

希望大家能帮我解答， 今天晚上我会一直在线等。 很急， 谢谢大家了。

Answer 1

$result = array();
foreach($new_arr as $k => $array){
if(isset($result[$array['new_id']]['new_value'])){
$result[$array['new_id']]['new_value'] += $array['new_value'];
}else{
$result[$array['new_id']]['new_value'] = $array['new_value'];
}
}
我测试过，没问题，如果还有什么不对的随时留言。

Answer 2

没看太明白,以前我写过一个.
你觉得好的话,就拿去借鉴一下.
Dim b(0 To 6) As String
Dim a(0 To 6) As String
Dim z(0 To 6) As String
Dim c As String
Private Sub Command1_Click()

If Command1.Caption = "开始" Then

Command1.Caption = "停止"

Timer1.Enabled = True

Timer1.Interval = 10

Else

Command1.Caption = "开始"

Timer1.Enabled = False

Call aaa

End If
End Sub

Private Sub Command2_Click()
End
End Sub

Private Sub Form_Load()

For I = 0 To 6

Text1(I) = ""

Text1(I).Font = "宋体"

Text1(I).FontSize = 20

Text1(I).Alignment = 2

Next I
End Sub

Private Sub Timer1_Timer()
'生成7位随机不重复的数字

For j = 0 To 6
1

Randomize

c = Int(35 * Rnd 1)

Text1(j) = c

If j > 0 Then

For e = 0 To j - 1

If Text1(j) = Text1(e) Then

GoTo 1

End If

Next e

End If

Next j
End Sub
Public Sub aaa()
'按从小到大顺序排序

For Y = 0 To 6

For I = Y To 6

If Val(Text1(Y)) > Val(Text1(I)) Then

TEMP = Text1(Y)

Text1(Y) = Text1(I)

Text1(I) = TEMP

End If

Next I

Next Y
End Sub