[英]How to sum values of array based on Key using PHP
for ($row = 0; $row < 25; $row++) {
$bQuery = 'Select date, billed from {$tableArray[$row][1]}';
$bProvider = new CSqlDataProvider($bQuery, array('pagination'=>false));
$Arr2 = $bProvider->getData();
// merging array to get all loop records in single array
$array_2 = array_merge($array_2, $Arr2);
}
然后print_r $array_2
輸出是:
Array
(
[0] => Array
(
[date] => 2016-11-00
[billed] => 100
)
[1] => Array
(
[date] => 2016-12-00
[billed] => 400
)
[2] => Array
(
[date] => 2016-11-00
[billed] => 200
)
// so on
)
我想對date is same
地方billed
。 所以這是我的代碼。
$result = array();
foreach ($array_2 as $data) {
@$result[$data['date']] += $data['billed'];
}
print_r($result);
$newresultGraph = array();
foreach ($result as $date => $billed) {
$newresultGraph[] = array('date' => $date, 'billed' => $billed);
}
print_r($newresultGraph);
上面代碼中的print_r($result)
返回如下數據,它已經將同一日期的值相加了。
Array
(
[2016-11-00] => 300
[2016-12-00] => 400
)
然后在上面的代碼中,在另一個foreach循環之后,Im使數據像以前一樣在數組中。 當我print_r($newresultGraph)
,我的數據是這樣的。
Array
(
[0] => Array
(
[date] => 2016-11-00
[billed] => 300
)
[1] => Array
(
[date] => 2016-12-00
[billed] => 400
)
)
這對我來說是完美的..因為我的查詢就是這樣。
Select date, billed from table'
我只得到了date
, billed
表,但現在我還有一個領域,所以我的查詢是這樣的..
Select
date,
billed,
((billed * rate) * (myValue) / 100) as my_rev,
((billed * rate) * (opValue) / 100) as op_rev,
From table
所以我有兩個新值,分別是my_rev
和op_rev
然后print_r $array_2
輸出是:
Array
(
[0] => Array
(
[date] => 2016-11-00
[billed] => 100
[my_rev] => 30
[op_rev] => 70
)
[1] => Array
(
[date] => 2016-12-00
[billed] => 400
[my_rev] => 150
[op_rev] => 250
)
[2] => Array
(
[date] => 2016-11-00
[billed] => 200
[my_rev] => 50
[op_rev] => 150
)
// so on
)
哪個是對的,
我想對一個日期的所有開票,my_rev,op_rev的值求和。.我不想對billed + my_rev + op_rev求和。
我希望我的數組如下所示:它應該將billed的所有值加到billed中,類似於my_rev和op_rev。
就像下面的例子一樣。
Array
(
[0] => Array
(
[date] => 2016-11-00
[billed] => 300
[my_rev] => 80
[op_rev] => 220
)
[1] => Array
(
[date] => 2016-12-00
[billed] => 400
[my_rev] => 150
[op_rev] => 250
)
)
我上面的代碼將我的print_r($result)
變成這樣:
Array
(
[2016-11-00] => 600
[2016-12-00] => 800
)
我該怎么辦? 還有其他建議嗎?
這段代碼做到了:
$tmp_array = array();
foreach ($array as $val) {
if (array_key_exists($val['date'], $tmp_array)) {
$tmp_array[$val['date']]['billed'] += $val['billed'];
$tmp_array[$val['date']]['my_rev'] += $val['my_rev'];
$tmp_array[$val['date']]['op_rev'] += $val['op_rev'];
} else {
$tmp_array[$val['date']]['date'] = $val['date'];
$tmp_array[$val['date']]['billed'] = $val['billed'];
$tmp_array[$val['date']]['my_rev'] = $val['my_rev'];
$tmp_array[$val['date']]['op_rev'] = $val['op_rev'];
}
}
$result = array_values($tmp_array);
輸出:
Array
(
[0] => Array
(
[date] => 2016-11-00
[billed] => 300
[my_rev] => 80
[op_rev] => 220
)
[1] => Array
(
[date] => 2016-12-00
[billed] => 400
[my_rev] => 150
[op_rev] => 250
)
)
)
$tmp_array
作為日期的鍵,以便對數據進行分組,最后一個用成功索引替換這些鍵。 如果您希望保留日期作為鍵-對其進行了優化-或不在乎,只需調用$tmp_array
$result
並刪除最后一行。
只需像這樣更改您的倒數第二個foreach,然后打印結果數組,即可看到它將與鍵值相加的結果。
$result = array();
foreach ($array_2 as $data) {
@$result[$data['date']]['billed'] += $data['billed'];
@$result[$data['date']]['my_rev'] += $data['my_rev'];
@$result[$data['date']]['op_rev'] += $data['op_rev'];
}
如果需要,您可以相應地更改最后一個foreach。
結果與您的值:
輸入:
Array
(
[0] => Array
(
[date] => 2016-11-00
[billed] => 100
[my_rev] => 30
[op_rev] => 70
)
[1] => Array
(
[date] => 2016-12-00
[billed] => 400
[my_rev] => 150
[op_rev] => 250
)
[2] => Array
(
[date] => 2016-11-00
[billed] => 200
[my_rev] => 50
[op_rev] => 150
)
)
結果:
Array
(
[2016-11-00] => Array
(
[billed] => 300
[my_rev] => 80
[op_rev] => 220
)
[2016-12-00] => Array
(
[billed] => 400
[my_rev] => 150
[op_rev] => 250
)
)
有兩種選擇:
$sql = <<<SQL
SELECT
date,
billed,
billed * rate * myValue / 100 AS my_rev,
billed * rate * opValue / 100 AS op_rev
FROM
table
SQL;
$provider = new CSqlDataProvider($sql, array(
'pagination' => false,
));
$rows = $provider->getData();
$data = array();
foreach ($rows as $row) {
$date = $row['date'];
// initialize
if (!array_key_exists($date, $data)) {
$data[$date] = array(
'date' => $date,
'billed' => $row['billed',
'my_rev' => $row['my_rev'],
'op_rev' => $row['op_rev',
);
continue;
}
$data[$date]['billed'] += $row['billed'];
$data[$date]['my_rev'] += $row['my_rev'];
$data[$date]['op_rev'] += $row['op_rev'];
}
// sort by key, that is, sort by date
ksort($data);
// remove keys
$data = array_values($data);
var_dump($data);
$sql = <<<SQL
SELECT
date,
SUM(billed),
SUM(billed * rate * myValue / 100) AS my_rev,
SUM(billed * rate * opValue / 100) AS op_rev
FROM
table
GROUP BY
date
ORDER BY
date ASC
SQL;
$provider = new CSqlDataProvider($sql, array(
'pagination' => false,
));
$rows = $provider->getData();
var_dump($rows);
您可以自己決定選擇哪種解決方案。 但是,后者需要更少的PHP代碼,畢竟數據庫服務器也可以做一些工作,對嗎?
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