我有兩個數組，如 JS 小提琴中給出的多維數組。如果 Month1 值相同，我想按升序將其合并為一個，否則按原樣打印 $array1= [0] => Array ( [month1] => January [2020cs] => 84 [2020as] => 500 [2019cs] => 17 [2019as] => 500 ) [1] => Array ( [month1] => February [2020cs] => 54 [2020as] => 200 [2019cs] => 12 [2019as] => 1000 ) [2] => Array ( [month1] => April [2020cs] => 4 [2020as] => 100 [2019cs] => 12 [2019as] => 1400 ) [3] => Array ( [month1] => November [2020cs] => 0 [2020as] => 0 [2019cs] => 7 [2019as] => 200 ) ) $array2= [0] => Array ( [month1] => January [2020cr] => 13 [2020ar] => 300 [2019cr] => 0 [2019ar] => 0 ) [2] => Array ( [month1] => March [2020cr] => 1 [2020ar] => 100 [2019cr] => 0 [2019ar] => 0 ) [3] => Array ( [month1] => November [2020cr] => 0 [2020ar] => 0 [2019cr] => 1 [2019ar] => 800 ) [4] => Array ( [month1] => December [2020cr] => 0 [2020ar] => 0 [2019cr] => 2 [2019ar] => 500 ) )我也使用過 array_merge_recursive() 。它也不起作用。誰能幫我嗎？提前致謝。
1 回答
慕的地10843
TA貢獻1785條經驗 獲得超8個贊
以下邏輯可能會幫助您：
為每個頂級數組鍵指定月份名稱 (
rekey())合并兩個數組
對結果集進行排序 (
$result)
<?php
// top-level array from indexed to associative (name of month)
$array1 = rekey($array1);
$array2 = rekey($array2);
function rekey(array $arr = []): array
{
foreach ($arr as $key => $record) {
$arr[$record['month1']] = $arr[$key]; // indexed to name of month
unset($arr[$key]);
}
return $arr;
}
// run the merge
$result = array_merge_recursive($array1, $array2);
// clean up double entries key 'month1'
foreach($result as $key => &$value) {
if(is_array($value['month1'])) $value['month1'] = $value['month1'][0];
}
// prepare result set for sorting
$months = ['January', 'February', 'March', 'April', 'May', 'June', 'July',
'August', 'September', 'October', 'November', 'December'];
foreach($result as $key0 => $value0) {
foreach($months as $key1 => $value1) {
if($key0 === $value1) {
$result[$key1] = $result[$key0]; // set index based on month 0-11
unset($result[$key0]);
}
}
}
ksort($result); // sort
$result = array_values($result); // top-level array back to sequential index
工作演示
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