Question

我有两个数组，并希望将第一个数组中的值作为键对值添加到第二个数组。所以关键是说[topic]，值是第一个数组的值。我提供了原始数组，以及我正在寻找的结果。谢谢。

Array
(
[0] => 1
[1] => 2
[2] => 1
)
Array
(
[0] => Array
    (
        [id] => 19
        [first] => Michelle
        [last] => Walters
        [sun] => 1
    )

[1] => Array
    (
        [id] => 182
        [first] => Robin
        [last] => Conti
        [sun] => 1
    )

[2] => Array
    (
        [id] => 183
        [first] => Cheri
        [last] => Constantino-Shor
        [sun] => 1
    )

）

这是我正在寻找的结果：

Array
(
[0] => 1
[1] => 2
[2] => 1
)
Array
(
[0] => Array
    (
        [id] => 19
        [first] => Michelle
        [last] => Walters
        [sun] => 1
        [topic]=> 1
    )

[1] => Array
    (
        [id] => 182
        [first] => Robin
        [last] => Conti
        [sun] => 1
        [topic]=> 2
    )

[2] => Array
    (
        [id] => 183
        [first] => Cheri
        [last] => Constantino-Shor
        [sun] => 1
        [topic]=> 1
    )

)

Answer 1

这非常简单 - 可能有一百万种方法 - 最基本的是for循环。假设您的主题值数组被称为$topics，而您的主数组被称为$users：

$topics = array(1, 2, 1);

$users = array(
    array(
        'id' => 19,
        'first' => 'Michelle',
        'last' => 'Walters',
        'sun' => 1,
    ),
    array(
        'id' => 182,
        'first' => 'Robin',
        'last' => 'Conti',
        'sun' => 1,
    ),
    array(
        'id' => 183,
        'first' => 'Cheri',
        'last' => 'Constantino-Shor',
    ),
);

$count = count($users);

for ($i = 0; $i < $count; $i++) {
    $users[$i]['topic'] = $topics[$i];
}

var_dump($users);

收率：

array (size=3)
  0 => 
    array (size=5)
      'id' => int 19
      'first' => string 'Michelle' (length=8)
      'last' => string 'Walters' (length=7)
      'sun' => int 1
      'topic' => int 1
  1 => 
    array (size=5)
      'id' => int 182
      'first' => string 'Robin' (length=5)
      'last' => string 'Conti' (length=5)
      'sun' => int 1
      'topic' => int 2
  2 => 
    array (size=4)
      'id' => int 183
      'first' => string 'Cheri' (length=5)
      'last' => string 'Constantino-Shor' (length=16)
      'topic' => int 1

将键对值添加到数组

1 个答案: