我想合并兩個數組，但我不知道哪種方法對我來說是正確的（array_merge、array_combine、array_unique）。第一個數組：Array( [0] => Array ( [id_person] => 194 [firstname] => Jesper [lastname] => Hansen [pos] => 29 [position] => 1 [starter] => 0 [subs] => 0 [goal] => 0 [yellow_card] => [red_card] => ) [1] => Array ( [id_person] => 195 [firstname] => Mikkel [lastname] => Andersen [pos] => 1 [position] => 1 [starter] => 1 [subs] => 0 [goal] => 0 [yellow_card] => [red_card] => ) [2] => Array ( [id_person] => 197 [firstname] => Alexander [lastname] => Scholz [pos] => 6 [position] => 2 [starter] => 1 [subs] => 0 [goal] => 0 [yellow_card] => [red_card] => ) [3] => Array ( [id_person] => 198 [firstname] => Erik [lastname] => Sviatchenko [pos] => 10 [position] => 2 [starter] => 1 [subs] => 0 [goal] => 0 [yellow_card] => [red_card] => ) [4] => Array ( [id_person] => 199 [firstname] => Kian [lastname] => Hansen [pos] => 14 [position] => 2 [starter] => 1 [subs] => 0 [goal] => 0 [yellow_card] => [red_card] => ) [5] => Array ( [id_person] => 204 [firstname] => Manjrekar [lastname] => James [pos] => 30 [position] => 2 [starter] => 0 [subs] => 0 [goal] => 0 [yellow_card] => [red_card] => )
2 回答
慕婉清6462132
TA貢獻1804條經驗 獲得超2個贊
如果我正確理解您的要求，那么 您可以在 的幫助下完成foreach()，array_search()如下array_column()所示，
foreach($second_array as $k=>$v){
$id_person = $v['id_person'];
$key = array_search($id_person, array_column($first_array, 'id_person'));
if($key){
$second_array[$k]['starter'] = $first_array[$key]['starter'];
$second_array[$k]['subs'] = $first_array[$key]['subs'];
$second_array[$k]['yellow_card'] = $first_array[$key]['yellow_card'];
$second_array[$k]['red_card'] = $first_array[$key]['red_card'];
}
}
print_r($second_array);
或者使用array_merge()而不是 4 行。
foreach($second_array as $k=>$v){
$id_person = $v['id_person'];
$key = array_search($id_person, array_column($first_array, 'id_person'));
if($key){
array_merge($second_array[$k],['starter'=>$first_array[$key]['starter'],'subs'=>$first_array[$key]['subs'],'yellow_card'=>$first_array[$key]['yellow_card'],'red_card'=>$first_array[$key]['red_card']]);
}
}
print_r($second_array);
工作演示： https: //3v4l.org/FeanU
蝴蝶不菲
TA貢獻1810條經驗 獲得超4個贊
這是解決問題的另一種方法：
/*
Go through both arrays and put the person_id as key in each array
(e.g. [0]['person_id'] = 197 TO [197]['person_id'] etc)
*/
foreach($first_array as $key=>$item) {
$first_array[$item['id_person']] = $item;
unset($first_array[$key]); //remove current item
}
foreach($second_array as $key=>$item) {
$second_array[$item['id_person']] = $item;
unset($second_array[$key]); //remove current item
}
/*
Go through second array. If first array contains the same person_id
the key for person_id exists, that's why we can use isset() here
*/
foreach($second_array as $key=>$item) {
if (isset($first_array[$key])) {
//Just copy the part that you intented from first array
//to this $second_array
$second_array[$key]['starter'] = $first_array[$key]['starter'];
$second_array[$key]['subs'] = $first_array[$key]['subs'];
$second_array[$key]['goal'] = $first_array[$key]['goal'];
$second_array[$key]['yellow_card'] = $first_array[$key]['yellow_card'];
$second_array[$key]['red_card'] = $first_array[$key]['red_card'];
}
}
這將導致：
Array
(
[195] => Array
(
[id_person] => 195
[position] => 1
[first] => Mikkel
[last] => Andersen
[id_club] => 2
[type] => 2
[captain] => 0
[pos] => 1
[subsmin_in] =>
[subsmin_out] =>
[starter] => 1
[subs] => 0
[goal] => 3
[yellow_card] => 2
[red_card] =>
)
[236] => Array
(
[id_person] => 236
[position] => 14
[first] => Sebastian
[last] => Buch
[id_club] => 2
[type] => 2
[captain] => 0
[pos] => 14
[subsmin_in] =>
[subsmin_out] =>
[starter] => 0
[subs] => 0
[goal] => 0
[yellow_card] =>
[red_card] =>
)
[209] => Array
(
[id_person] => 209
[position] => 3
[first] => Joel
[last] => Andersson
[id_club] => 2
[type] => 2
[captain] => 0
[pos] => 18
[subsmin_in] =>
[subsmin_out] =>
[starter] => 1
[subs] => 0
[goal] => 0
[yellow_card] =>
[red_card] =>
)
)
如果您希望索引從零開始，您可以這樣做：
$second_array = array_values($second_array);
你將擁有：
Array
(
[0] => Array
(
[id_person] => 195
[position] => 1
[first] => Mikkel
[last] => Andersen
[id_club] => 2
[type] => 2
[captain] => 0
[pos] => 1
[subsmin_in] =>
[subsmin_out] =>
[starter] => 1
[subs] => 0
[goal] => 3
[yellow_card] => 2
[red_card] =>
)
[1] => Array
(
[id_person] => 236
[position] => 14
[first] => Sebastian
[last] => Buch
[id_club] => 2
[type] => 2
[captain] => 0
[pos] => 14
[subsmin_in] =>
[subsmin_out] =>
[starter] => 0
[subs] => 0
[goal] => 0
[yellow_card] =>
[red_card] =>
)
[2] => Array
(
[id_person] => 209
[position] => 3
[first] => Joel
[last] => Andersson
[id_club] => 2
[type] => 2
[captain] => 0
[pos] => 18
[subsmin_in] =>
[subsmin_out] =>
[starter] => 1
[subs] => 0
[goal] => 0
[yellow_card] =>
[red_card] =>
)
)
筆記！為了測試目的，我更改了一些值。
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