PHP数组在同一个键上合并两个数组

Question

我试图将以下两个数组合并为一个数组,共享相同的键:

第一阵列:

array(3) {
  [0]=>
   array(1) {
   ["Camera1"]=>
   string(14) "192.168.101.71"
}
[1]=>
array(1) {
  ["Camera2"]=>
  string(14) "192.168.101.72"
}
[2]=>
array(1) {
  ["Camera3"]=>
  string(14) "192.168.101.74"
}
}

第二阵列:

array(3) {
 [0]=>
  array(1) {
  ["Camera1"]=>
  string(2) "VT"
 }
 [1]=>
 array(1) {
   ["Camera2"]=>
   string(2) "UB"
 }
 [2]=>
 array(1) {
  ["Camera3"]=>
  string(2) "FX"
 }
}

如您所见,它们共享相同的键(Camera1,Camera2,Camera3等).

这是我尝试过的:

 $Testvar = array_merge($NewArrayCam,$IpAddressArray);
 foreach ($Testvar AS $Newvals){
 $cam = array();
 foreach($Newvals AS $K => $V){
 $cam[] = array($K => $V);
 }

Answer 1

理想情况下,我希望以这样一种方式格式化这两个数组,这样array_merge_recursive就可以简单地合并数组而不用太大惊小怪.

但是我确实提出了一个使用的解决方案array_map.

$array1 = array(
    array("Camera1" => "192.168.101.71"),
    array("Camera2" => "192.168.101.72"),
    array("Camera3" => "192.168.101.74"),
);

$array2 = array(
    array("Camera1" => "VT"),
    array("Camera2" => "UB"),
    array("Camera3" => "FX")
);

$results = array();

array_map(function($a, $b) use (&$results) {

    $key = current(array_keys($a));
    $a[$key] = array('ip' => $a[$key]);

    // Obtain the key again as the second array may have a different key.
    $key = current(array_keys($b));
    $b[$key] = array('name' => $b[$key]);

    $results += array_merge_recursive($a, $b);

}, $array1, $array2);

var_dump($results);

输出是:

array (size=3)
  'Camera1' => 
    array (size=2)
      'ip' => string '192.168.101.71' (length=14)
      'name' => string 'VT' (length=2)
  'Camera2' => 
    array (size=2)
      'ip' => string '192.168.101.72' (length=14)
      'name' => string 'UB' (length=2)
  'Camera3' => 
    array (size=2)
      'ip' => string '192.168.101.74' (length=14)
      'name' => string 'FX' (length=2)

Answer 2

尝试使用array_merge_recursive.

Answer 3

使用array_merge_recursive:

将所有数字键转换为字符串,(make为关联数组)

$result = array_merge_recursive($ar1, $ar2);
print_r($result);

参考:http://php.net/array_merge_recursive

Answer 4

对于你的嵌套级别就足够了:

$sumArray = array_map(function ($a1, $b1) { return $a1 + $b1; }, $array1, $array2);

对于更深的嵌套,它不会工作.