这个问题看似重复,但我发誓现在已经尝试了成千上万个解决方案,而且时间长达数小时……
我有一个像这样的关联多维数组:
1 =>
array (size=1)
'Pld' =>
array (size=2)
'score_good_answers' => string '1' (length=1)
'score_bad_answers' => string '0' (length=1)
2 =>
array (size=1)
'Aln' =>
array (size=2)
'score_good_answers' => string '0' (length=1)
'score_bad_answers' => string '1' (length=1)
3=>
array (size=1)
'IPS' =>
array (size=2)
'score_good_answers' => string '1' (length=1)
'score_bad_answers' => string '0' (length=1)
4 =>
array (size=1)
'Pld' =>
array (size=2)
'score_good_answers' => string '1' (length=1)
'score_bad_answers' => string '0' (length=1)
5 =>
array (size=1)
'Aln' =>
array (size=2)
'score_good_answers' => string '1' (length=1)
'score_bad_answers' => string '0' (length=1)
6 =>
array (size=1)
'Aln' =>
array (size=2)
'score_good_answers' => string '1' (length=1)
'score_bad_answers' => string '0' (length=1)
对于Var_Export
:
1=> array ( 'Pld' => array ( 'score_good_answers' => '1', 'score_bad_answers' => '0', ), ), 2 => array ( 'Aln' => array ( 'score_good_answers' => '0', 'score_bad_answers' => '1', ), ), 3 => array ( 'IPS' => array ( 'score_good_answers' => '1', 'score_bad_answers' => '0', ), ), 4 => array ( 'Pld' => array ( 'score_good_answers' => '1', 'score_bad_answers' => '0', ), ), 5 => array ( 'Aln' => array ( 'score_good_answers' => '1', 'score_bad_answers' => '0', ), ), 6 => array ( 'Aln' => array ( 'score_good_answers' => '1', 'score_bad_answers' => '0', ), ),
我需要将所有'score_good_answers'
和'score_bad_answers'
所有Aln
S和Pld
S之和求和,依此类推。
最坏的情况是,此键即:是可变值。
在此级别上,任何有效的解决方案都将受到赞赏。
我在此SO问题中尝试了“可接受的答案”:如何对相同键的数组的值求和?
但是,它似乎引发了几个错误。
我从几个SO问题中尝试了更多解决方案,即:如何求和同一键的数组的值?,基于相同键的值数组求和,如何通过相同键求和并按其他键分组等等。
另一个接近的是:如何在php中求和相同的数组
并尝试:
$array2 = array();
for($f = 0; $f<count($getCategories); $f++){
foreach($getCategories[$i] as $k=>$v) {
if(!isset($array2[$v['Aln']])) {
$array2[$v['Aln']] = $v;
} else {
$array2[$v['Aln']]['score_good_answers'] += $v['score_good_answers'];
}
}
} var_dump($array2);
我仍然得到Errors
包括几个在内的invalid arguments
undefined offsets
更多个
谦虚地要求任何建议。
非常感谢你
您可以使用以下代码:
$answers = array();
foreach ($getCategories as $categories){
foreach($categories as $category => $scores){
foreach ($scores as $type => $score){
if (isset($answers[$category][$type])){
$answers[$category][$type] += (int) $score;
} else {
$answers[$category][$type] = (int) $score;
}
}
}
}
的输出将是以下数组:
Array
(
[Pld] => Array
(
[score_good_answers] => 2
[score_bad_answers] => 0
)
[Aln] => Array
(
[score_good_answers] => 2
[score_bad_answers] => 1
)
[IPS] => Array
(
[score_good_answers] => 1
[score_bad_answers] => 0
)
)
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