Question

我们假设我有一个如下数组：

$settings = array(
    "age" => "25",
    "data" => array(
            "name" => "John Dewey",
            "zip_code" => "00000"
        )
);

这是我的意见：

$target_directory = "data.name";    // targets $settings["data"]["name"]
$new_value = "Micheal";    // I want to change 
                           // $settings["data"]["name"] with this value

我想要类似以下内容：

$new_array = dont_know_what_to_do($target_directory, $new_value, $settings);

print_r($new_array)应返回以下内容：

Array
(
    [age] => 25
    [data] => Array
        (
            [name] => Micheal,
            "zip_code" => "00000"
        )

)

更改应该是完全动态的，这意味着data.zip_code = "98985"也应该只将邮政编码值从00000更改为98985，依此类推......

Answer 1

这是动态设置功能，你可以使用它设置任何深度。 Demo here 为您提问。

function set($settings, $target_directory, $new_value)
{
  $array = explode('.', $target_directory);
  $ref = &$settings;
  while($v = current($array))
  {
    $ref = &$ref[$v];
    next($array);
  }
  $ref = $new_value;
  return $settings;
}

Answer 2

$settings = array(
    "age" => "25",
    "data" => array(
            "name" => "John Dewey",
            "zip_code" => "00000"
        )
);
$new_value = "Micheal"; 
$settings["data"]["name"] = $new_value;
print_r($settings);

Answer 3

//In your main function
public function something() {
    $settings = array(
     "age" => "25",
     "data" => array(
        "name" => "John Dewey",
        "zip_code" => "00000"
      )
    );

   $target = 'data.name';
   $input = 'Other Name'

  $new_arr = dont_know_what_to_do($target_dir, $input);

  print_r($new_arr);        
}


//Create new function
public function dont_know_what_to_do($settings, $target, $input) {
  $key = explode('.', $target)
  return $settings['data'][$key[1]] = $input;
}

在php中动态修改关联数组值

3 个答案: