问个数组合并的问题

[superkey]

数组一:

array:4 [ 16 => array:2 [ "id" => 16 "sex" => "aa" ] 19 => array:2 [ "id" => 19 "sex" => "ad" ] 26 => array:2 [ "id" => 26 "sex" => "jk" ] 28 => array:2 [ "id" => 28 "sex" => "gg" ] ]

数组二:

array:4 [ 16 => array:2 [ "id" => 16 "feel" => "1" ] 19 => array:2 [ "id" => 19 "feel" => "2" ] 26 => array:2 [ "id" => 26 "feel" => "3" ] 28 => array:2 [ "id" => 28 "feel" => "4" ] ]

怎么样才能合并成一个如下的数组

array:4 [ 16 => array:2 [ "id" => 16 "sex" => "aa" "feel" => "1" ] 19 => array:2 [ "id" => 19 "sex" => "ad" "feel" => "2" ] 26 => array:2 [ "id" => 26 "sex" => "jk" "feel" => "3" ] 28 => array:2 [ "id" => 28 "sex" => "gg" "feel" => "4" ] ]

我用 array_map("array_merge_recursive",$arr1,$arr2),觉无奈有重复,用 unset 后 id 又没了,求指导

[chairuosen]

非要用内置函数么？手动写算法合并一下多好

[cxbig]

function smerge($a1, $a2){
foreach ($a1 as $key => $value) {
if(array_key_exists($key, $a2) && is_array($a2[$key])){
$a1[$key] = $a1[$key] + $a2[$key];
}
}
return $a1;
}
其他限制条件一概没考虑

[wander2008]

哥，咱能不能用 md 形式？