Question

你好我有这样的数组，深度可变：

$array = [ // depth of array and number of values are variable
  'this' => [
       'a' => [
           'b' => 'some value'
       ],
       'c' => [
           'd' => 'some value'
       ],
  ],
  'that' => [
       'path' => [
            'to' => [
                'val' => 'some value'
            ],
       ]
  ]
];

我需要这个：

$array['this.a.b'] => 'some value';
$array['this.c.d'] => 'some value';
$array['that.path.to.val'] => 'some value';

或者这可能更好：

$array[
 0 => [
   'key' => 'this.a.b',
   'val' => 'some value'
 ],
 1 => [
   'key' => 'this.c.d',
   'val' => 'some value'
 ],
 2 => [
   'key' => 'that.path.to.val',
   'val' => 'some value'
 ],
]

我需要从数组中获取数据并将它们放到简单的形式，如：

<input name="this.a.b" value="some value">

我尝试过类似的东西，但效果并不好。

    private static function reformat($input, $k = '', &$keys = [])
{
    foreach($input as $key => $val) {
        $k .= '.' . $key;
        if (is_array($val)){
            static::reformat($val, $k, $keys);
        }else{
            $keys[$k] = $val;
        }
    }

    return $keys;
}

感谢您的帮助

Answer 1

试试这个

$array['this']['a']['b'];
$array['this']['c']['d'];
$array['this']['path']['to']['val'];

或

    function getVal($array, $key, $d='.') {
        $keyArray = explode($d, $key);
        $value = $array;
        foreach($keyArray as $k){
            if(isset($value[$k]))
                $value = $value[$k];
            else {
                $value = "";
                break;
            }
        }
        return $value;
    }


    echo getVal($array, 'this.path.to.val');

Answer 2

您可以让用户将功能定义为

$array = [
  'this' => [
       'a' => [
           'b' => 'some value'
       ],
       'c' => [
           'd' => 'some value'
       ],
  ],
  'that' => [
       'path' => [
            'to' => [
                'val' => 'some value'
            ],
       ]
  ]
];

function makesingledimesional($arr,$par = ''){
    $result = [];
    $final = [];
    foreach($arr as $key => $value){
        if(is_array($value) && count($value)>0){
            $par .= "$key.";
            $result[$par] = makesingledimesional($value,$par);
        }else{
            $result[$par.$key] = $value;
        }

    }
    array_walk_recursive($result,function($v,$k)use(&$final){$final[$k] = $v;});
    return $final;
}

print_r(makesingledimesional($array));

<强>输出：

Array
(
    [this.a.b] => some value
    [this.a.c.d] => some value
    [this.that.path.to.val] => some value
)

Demo

Answer 3

我找到了想要的解决方案，现在是：

Array
(
    [this.a.b] => some value
    [this.c.d] => some value
    [that.path.to.val] => some value
)

<强>输出

Demo

如何重新格式化多维数组

3 个答案: