在 array_walk 函数中获取当前索引

Question

$A = ["0" => "a", "1" => "b", "2" => "c"];
$B = ["0" => "aa", "1" => "bb", "2" => "cc"]
array_walk($A,function($item) use($B){
     $temp[] = $item;
     $temp[] = $B[?];
});

如何填写？多于？如何获取array_walk中的当前索引？

Answer 1

如果我理解正确的话，类似的东西会起作用

$A = ["0" => "a", "1" => "b", "2" => "c"];
$B = ["0" => "aa", "1" => "bb", "2" => "cc"]
array_walk($A,function($item, $key) use($B){
     $temp[] = $item;
     $temp[] = $B[$key];
});

在 array_walk 函数中获取当前索引

Get current index in array_walk function

php

array-walk