快速多维数组到单个数组

Question

我想从父数组中删除键 0 并将子数组设置为父数组。在这里我将获得单个值，所以一个数组对我来说没问题。

我当前的数组如下所示

Array
(
    [0] => Array
        (
            [id] => 3
            [api_key] => acount266
            [auth_domain] => Tester26
            [database_url] => vcc.test.acc+27@gmail.com
            [project_id] => 12345
            [storage_bucket] => 
            [secret_key_path] => 
            [fcm_server_key] => 1
            [messaging_sender_id] => 0
            [key_phrase] => 
            [disable] => 0
            [created] => 
            [updated] => 
        )

)

我想要像下面这样的。预期结果

Array
(
            [id] => 3
            [api_key] => acount266
            [auth_domain] => Tester26
            [database_url] => vcc.test.acc+27@gmail.com
            [project_id] => 12345
            [storage_bucket] => 
            [secret_key_path] => 
            [fcm_server_key] => 1
            [messaging_sender_id] => 0
            [key_phrase] => 
            [disable] => 0
            [created] => 
            [updated] => 

)

为此我尝试了如下但没有成功。

$new = array();
foreach ($data as $v){
    $new = array_merge($new , array_values($v)) ;
}

但在我的代码中它被删除了密钥，例如 id，api_key，等等....

我的新数组中也需要键名。请推荐

Answer 1

删除 array_values

解决方案

<?php 
    $test = array(
        array
            (
                'id' => 3,
                'api_key' => 'acount266'
            )
    );

    $new = array();
    foreach($test as $v){
        $new = array_merge($new, $v);
    }

    var_dump($new);

结果

array(2) {
  ["id"]=>
  int(3)
  ["api_key"]=>
  string(9) "acount266"
}

Answer 2

我试过这个：

$arr = array();
foreach ($examples as $example) {
    foreach ($example as $e) {
        array_push($arr, $e);
    }
}

Answer 3

根据 PHP 的文档所述

reset() function returns the value of the first array element, or FALSE if the array is empty.

$array = array(
        array(
            'id' => 3,
            'api_key' => 'acount266',
            'auth_domain' => 'Tester26',
            'database_url' => 'vcc.test.acc+27@gmail.com',
            'project_id' => '12345',
            'storage_bucket' => '',
            'secret_key_path' => '',
            'fcm_server_key' => 1,
            'messaging_sender_id' => 0,
            'key_phrase' => '',
            'disable' => 0,
            'created' => '',
            'updated' => ''
        )
      );

      print_r(reset($test));

Answer 4

不要过于复杂，将第一个元素重新分配给父数组既快速又简单：

<?php

$array =
array (
  0 => 
  array (
    'first' => 'Michael',
    'last' => 'Thompson'
  )
);

$array = $array[0];
var_export($array);

输出：

array (
    'first' => 'Michael',
    'last' => 'Thompson',
)

或者：

$array = array_shift($array);

快速多维数组到单个数组

shift multidimentional array to single array

php

arrays

multidimensional-array

array-merge