在PHP阵列的复制总和 [英] sum of duplicates in array php

问题描述

林不知道的关于这个搜索功能是什么这么不能似乎帮助自己。似乎是一个明显的问题真的。
我有一个数组，并在那里我有重复键，我想补充的值。例如：

这是我的数组的一个部分。

  [1] =＆GT;排列
    （
        [inputAvg] =＆GT; 21.41 KB
        [outputAvg] =＆GT; 22.03 KB
        [日期] =＆GT; 2011-08-01
    ）[2] =＆GT;排列
    （
        [inputAvg] =＆GT; 182.63 KB
        [outputAvg] =＆GT; 186.05 KB
        [日期] =＆GT; 2011-08-01
    ）[3] =＆GT;排列
    （
        [inputAvg] =＆GT; 182.63 KB
        [outputAvg] =＆GT; 186.05 KB
        [日期] =＆GT; 2011-08-02
    ）[4] =＆GT;排列
    （
        [inputAvg] =＆GT; 4.84 MB
        [outputAvg] =＆GT; 4.93 MB
        [日期] =＆GT; 2011-08-03
    ）
 

我只想做的是，说其中数组之日起关键是相同的（如这里2011-08-01）我要一次显示这个日期，但有重复的项目组合值.... ？

例如

  [1] =＆GT;排列
    （
        [inputAvg] =＆GT; 204.04 KB
        [outputAvg] =＆GT; 208.08 KB
        [日期] =＆GT; 2011-08-01
    ）
[2] =＆GT;排列
    （
        [inputAvg] =＆GT; 182.63 KB
        [outputAvg] =＆GT; 186.05 KB
        [日期] =＆GT; 2011-08-02
    ）[3] =＆GT;排列
    （
        [inputAvg] =＆GT; 4.84 MB
        [outputAvg] =＆GT; 4.93 MB
        [日期] =＆GT; 2011-08-03
    ）
 

解决方案

 ＆LT; PHP$阵列=阵列（阵列（inputAvg=＆GT; 21.41，outputAvg=＆GT; 22.03，日期=＆gt;中2011-08-01），
                阵列（inputAvg=＆GT; 182.63，outputAvg=＆GT; 186.05，日期=＆gt;中2011-08-01），
                阵列（inputAvg=＆GT; 182.63，outputAvg=＆GT; 186.05，日期=＆gt;中2011-08-02）
                ）;$解析度=阵列（）;
的foreach（$数组作为$瓦尔斯）{
    如果（array_key_exists（$瓦尔斯['日期']，$水库））{
        $水库[$瓦尔斯['日期'] ['inputAvg'] + = $瓦尔斯['inputAvg'];
        $水库[$瓦尔斯['日期'] ['outputAvg'] + = $瓦尔斯['outputAvg'];
        $水库[$瓦尔斯['日期'] ['日期'] = $瓦尔斯['日期'];
    }
    其他{
        $水库[$瓦尔斯['日期'] = $丘壑;
    }
}回声＆LT; pre＆gt;中;
的print_r（$水库）;？＆GT;
 

输出：

 阵列
（
    [2011-08-01] =＆GT;排列
        （
            [inputAvg] =＆GT; 204.04
            [outputAvg] =＆GT; 208.08
            [日期] =＆GT; 2011-08-01
        ）    [2011-08-02] =＆GT;排列
        （
            [inputAvg] =＆GT; 182.63
            [outputAvg] =＆GT; 186.05
            [日期] =＆GT; 2011-08-02
        ））
 

Im not sure what function to search for in regards to this so cant seem to help myself. Seems like an obvious problem really. I have an array, and where I have duplicate keys, I wish to add the values. e.g:

This is a section of my array.

[1] => Array
    (
        [inputAvg] => 21.41 KB
        [outputAvg] => 22.03 KB
        [date] => 2011-08-01
    )

[2] => Array
    (
        [inputAvg] => 182.63 KB
        [outputAvg] => 186.05 KB
        [date] => 2011-08-01
    )

[3] => Array
    (
        [inputAvg] => 182.63 KB
        [outputAvg] => 186.05 KB
        [date] => 2011-08-02
    )

[4] => Array
    (
        [inputAvg] => 4.84 MB
        [outputAvg] => 4.93 MB
        [date] => 2011-08-03
    )

All I wish to do is, say where the date key of the array is the same (e.g. here 2011-08-01) I want to show this date once, but with combined values of the duplicate item....?

e.g

[1] => Array
    (
        [inputAvg] => 204.04 KB
        [outputAvg] => 208.08 KB
        [date] => 2011-08-01
    )


[2] => Array
    (
        [inputAvg] => 182.63 KB
        [outputAvg] => 186.05 KB
        [date] => 2011-08-02
    )

[3] => Array
    (
        [inputAvg] => 4.84 MB
        [outputAvg] => 4.93 MB
        [date] => 2011-08-03
    )

解决方案

<?php

$array  = array(Array("inputAvg" => 21.41,"outputAvg" => 22.03,"date" => "2011-08-01"),
                Array("inputAvg" => 182.63,"outputAvg" => 186.05,"date" => "2011-08-01" ),
                Array("inputAvg" => 182.63, "outputAvg" => 186.05,"date" => "2011-08-02")
                );

$res  = array();
foreach($array as $vals){
    if(array_key_exists($vals['date'],$res)){
        $res[$vals['date']]['inputAvg']    += $vals['inputAvg'];
        $res[$vals['date']]['outputAvg']   += $vals['outputAvg'];
        $res[$vals['date']]['date']        = $vals['date'];
    }
    else{
        $res[$vals['date']]  = $vals;
    }
}

echo "<pre>";
print_r($res);

?>

Output :

Array
(
    [2011-08-01] => Array
        (
            [inputAvg] => 204.04
            [outputAvg] => 208.08
            [date] => 2011-08-01
        )

    [2011-08-02] => Array
        (
            [inputAvg] => 182.63
            [outputAvg] => 186.05
            [date] => 2011-08-02
        )

)

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