Question

假设我有一个像：

这样的数组

$thing = Array
(
    [test1] => something
    [test2] => something
    [info] => yes
    [array] => Array
        (
            [test1] => something else
            [test2] => something else
            [info] => maybe
            [array] => Array
                (
                    [test1] => something
                    [info] => yes
                )

        )
)

如果'info'的值为'yes'并且{{}>我如何编写一个经过$thing的函数，并为名为'valid'的每个部分添加一个键，其值为TRUE {1}}否则？

我基本上希望最终数组看起来像：

$final = Array
(
    [test1] => something
    [test2] => something
    [info] => yes
    [valid] => TRUE //add this
    [array] => Array
        (
            [test1] => something else
            [test2] => something else
            [info] => maybe
            [valid] => FALSE //add this
            [array] => Array
                (
                    [test1] => something
                    [info] => yes
                    [valid] => TRUE //add this
                )

        )

)

我正在编写一个用于管理站点地图的codeigniter库，并提供了获取页面的面包屑和导航树的简单方法，但我遇到了需要做这样的事情的部分。

我无法弄清楚的主要问题是： 如何浏览阵列并为每个部分添加密钥？数组中也可以有无限数量的数组。

谢谢！

Answer 1

这感觉就像你在添加冗余信息一样。你为什么不能重新使用数组中的数据 - 即

[info] => yes

Answer 2

function setInfoTrueFalse($array){
    if(isset($array['info']) && $array['info']=='yes'){ 
        $array['valid']=TRUE;
    }else{
        $array['valid']=FALSE;
    }
    foreach($array as $key => $val){ # if we don't know the name of possible arrays, loop though
        if(is_array($val)){
            # loop one layer deeper if we have another array, could combine with the 'info' check if yes to that means this array exists and is an array
            $array[$key]=setInfoTrueFalse($array[$key]);
        }
    }
    return $array;
}

$final=setInfoTrueFalse($thing);

Answer 3

您可以使用此

$thing = Array
(
        "test1" => "something",
        "test2" => "something",
        "info" => "yes",
        "array" => Array
        (
                "test1" => "something else",
    "test2" => "something else",
    "info" => "maybe",
                "array" => Array
                (
                        "test1" => "something",
                        "info" => "yes"
                )
        )
);



function validPush($array)
{
    foreach ($array as $key => $value)
    {
        if(is_array($value))
           $array[$key] = validPush($value);

        if($key == "info")
            $array['valid'] = ($value == "yes") ? true : false ;
    }
    return $array;
}

var_dump(validPush($thing));

输出

array
  'test1' => string 'something' (length=9)
  'test2' => string 'something' (length=9)
  'info' => string 'yes' (length=3)
  'array' => 
    array
      'test1' => string 'something else' (length=14)
      'test2' => string 'something else' (length=14)
      'info' => string 'maybe' (length=5)
      'array' => 
        array
          'test1' => string 'something' (length=9)
          'info' => string 'yes' (length=3)
          'valid' => boolean true
      'valid' => boolean false
  'valid' => boolean true

Answer 4

为什么不将jus添加到第一个数组并认为它对其余数组有效。

编辑：做一个递归调用，传递$ array，具体取决于你得到多少维数组，这里3。

function add_array( $array) {  
    $array['info'] = 'yes';
 return $arr;
}

致电：

 $final = add_array(add_array(add_array($final)));

如果满足php中的某些条件，如何在多维数组中为每个数组添加一个键？

4 个答案: