[英]adding array values
Array
(
[0] => Array
(
[datas] => Array
(
[name] => lorem
[id] => 1
[type] => t1
[due_type] => Q1
[t1] => 1
[t2] => 1
[t3] => 1
)
)
[1] => Array
(
[datas] => Array
(
[name] => lorem
[id] => 1
[type] => t2
[due_type] => Q1
[t1] => 0
[t2] => 1
[t3] => 0
)
)
[2] => Array
(
[datas] => Array
(
[name] => name
[id] => 2
[type] => t1
[due_type] => Q1
[t1] => 1
[t2] => 0
[t3] => 1
)
)
[3] => Array
(
[datas] => Array
(
[name] => name
[id] => 2
[type] => t2
[due_type] => Q1
[t1] => 1
[t2] => 0
[t3] => 0
)
)
)
我想根据其ID添加每个数组的值,但是在使用这些代码获取值时遇到了问题:我想根据每个due_type计算所有类型的总和并将它们组合到一个数组中。
$totals = array();
$i = -1;
foreach($datas as $key => $row){
$i += 1;
$items[$i] = $row;
if (isset($totals[$items[$i]['datas']['id']])){
if($totals[$items[$i]['datas']['id']]['due_type'] == 'Q1'){
if($totals[$items[$i]['datas']['id']]['type'] == 't1'){
$t1+=$totals[$items[$i]['datas']['id']]['t1'];
}elseif($totals[$items[$i]['datas']['id']]['type'] == 't2'){
$t2+=$totals[$items[$i]['datas']['id']]['t2'];
}elseif($totals[$items[$i]['datas']['id']]['type'] == 't3'){
$t3+=$totals[$items[$i]['datas']['id']]['t3'];
}
$totals[$items[$i]['datas']['id']]['t1_total'] = $t1;
$totals[$items[$i]['datas']['id']]['t2_total'] = $t2;
}
}
else {
$totals[$items[$i]['datas']['id']] = $row['datas'];
$totals[$items[$i]['datas']['id']]['t1_total'] = $items[$i]['datas']['t1'];
$totals[$items[$i]['datas']['id']]['t2_total'] = $items[$i]['datas']['t2'];
}
}
不知道您想要什么输出,但是这:
function condense($data, $condensed = array()) {
foreach($data as $row) {
$id = $row['datas']['id'];
$due_type = $row['datas']['due_type'];
$type = $row['datas']['type'];
if(!array_key_exists($id, $condensed)) {
$condensed[$id] = array();
}
if(!array_key_exists($due_type, $condensed[$id])) {
$condensed[$id][$due_type] = array();
}
if(!array_key_exists($type, $condensed[$id][$due_type])) {
$condensed[$id][$due_type][$type] = 0;
}
$condensed[$id][$due_type][$type] += $row['datas'][$type];
}
return $condensed;
}
$result = condense($data);
给你:
Array
(
[1] => Array
(
[Q1] => Array
(
[t1] => 1
[t2] => 1
)
)
[2] => Array
(
[Q1] => Array
(
[t1] => 1
[t2] => 0
)
)
)
我可能是错的,但是感觉就像您正在从数据库中读取那些数组一样。 在数据库本身中进行这样的操作可能会更容易:
这样的SQL语句将完成您打算做的事情:
SELECT count(1),type,due_type FROM Table GROUP BY type, due_type;
您可以使用PHP重新读取输出。
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