[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
输出是:
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
)
我想对date is same
地方billed
。 所以这是我的代码。
$result = array();
foreach ($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);
上面代码中的print_r($result)
返回如下数据,它已经将同一日期的值相加了。
Array
(
[2016-11-00] => 300
[2016-12-00] => 400
)
然后在上面的代码中,在另一个foreach循环之后,Im使数据像以前一样在数组中。 当我print_r($newresultGraph)
,我的数据是这样的。
Array
(
[0] => Array
(
[date] => 2016-11-00
[billed] => 300
)
[1] => Array
(
[date] => 2016-12-00
[billed] => 400
)
)
这对我来说是完美的..因为我的查询就是这样。
Select date, billed from table'
我只得到了date
, billed
表,但现在我还有一个领域,所以我的查询是这样的..
Select
date,
billed,
((billed * rate) * (myValue) / 100) as my_rev,
((billed * rate) * (opValue) / 100) as op_rev,
From table
所以我有两个新值,分别是my_rev
和op_rev
然后print_r $array_2
输出是:
Array
(
[0] => Array
(
[date] => 2016-11-00
[billed] => 100
[my_rev] => 30
[op_rev] => 70
)
[1] => Array
(
[date] => 2016-12-00
[billed] => 400
[my_rev] => 150
[op_rev] => 250
)
[2] => Array
(
[date] => 2016-11-00
[billed] => 200
[my_rev] => 50
[op_rev] => 150
)
// so on
)
哪个是对的,
我想对一个日期的所有开票,my_rev,op_rev的值求和。.我不想对billed + my_rev + op_rev求和。
我希望我的数组如下所示:它应该将billed的所有值加到billed中,类似于my_rev和op_rev。
就像下面的例子一样。
Array
(
[0] => Array
(
[date] => 2016-11-00
[billed] => 300
[my_rev] => 80
[op_rev] => 220
)
[1] => Array
(
[date] => 2016-12-00
[billed] => 400
[my_rev] => 150
[op_rev] => 250
)
)
我上面的代码将我的print_r($result)
变成这样:
Array
(
[2016-11-00] => 600
[2016-12-00] => 800
)
我该怎么办? 还有其他建议吗?
这段代码做到了:
$tmp_array = array();
foreach ($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);
输出:
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
)
)
)
$tmp_array
作为日期的键,以便对数据进行分组,最后一个用成功索引替换这些键。 如果您希望保留日期作为键-对其进行了优化-或不在乎,只需调用$tmp_array
$result
并删除最后一行。
只需像这样更改您的倒数第二个foreach,然后打印结果数组,即可看到它将与键值相加的结果。
$result = array();
foreach ($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,您可以相应地更改最后一个foreach。
结果与您的值:
输入:
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
)
)
结果:
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
)
)
有两种选择:
$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);
您可以自己决定选择哪种解决方案。 但是,后者需要更少的PHP代码,毕竟数据库服务器也可以做一些工作,对吗?
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