Question

对于我试图传递给请求的数据而不是替换数组中的现有数据，它正在替换数组中的第一个值。有人能告诉我这里我做错了什么吗？

private function validParams($overrides = [])
{
    return array_replace_recursive([
        // More fields,
        'posts' => [
            1 => [
                'field1' => ...,
                'field2' => [],
                'field3' => [],
                'field4' => [],
                'users' => [1, 2],
                'field6' => ...,
            ]
        ],
    ], $overrides);
}

$this->validParams([
        'posts' => [
            1 => [
                'users' => [99],
            ]
        ],
    ]));

如果运行上一个代码，它就变成了这个。

"users" => array:2 [
    0 => 99
    1 => 2
  ]

而不是期望的东西。

"users" => array:1 [
    0 => 99
  ]

Answer 1

编辑版本：

所以，我玩了一下，试图创建一个自定义函数来做你需要的。对我来说似乎有效。请试一试。如果我错过了什么，请告诉我。

基本上你从函数中删除了默认数组，然后为这个基数组添加一个变量。这允许函数调用自身并深入到数组中。

// removed base
$base = ['posts' => [
    1 => [
            'field1' => '',
            'field2' => [],
            'field3' => [],
            'field4' => [],
            'users' => [1, 2],
            'field6' => '',
    ]
]];

// added base param
function validParams($base, $overrides) {
    if(is_array($overrides)) {
        // loop over override
        foreach($overrides as $key => $overrideVal) {
            // if override is an array such as base and there is a similar key in the base array, 
            // catch the base value as $baseVal. Then go one step down into base array
            if (is_array($overrideVal) && (null!==($baseVal = isset($base[$key]) ? $base[$key] : null)) && is_array($baseVal)) {
                // call self with baseval and override val
                $base[$key] = validParams($baseVal,$overrideVal);
            } else {
                // no longer an array, here we will begin to overwrite
                // loop trough known last base
                foreach ($base as $baseKey => $basVal) {
                   // if the value is given in overwrite, then overwrite it
                   if ($baseKey == $key) {
                      $base[$key] = $overrideVal;
                   } else {
                      // was not given in overwrite, remove it
                      unset($base[$baseKey]);
                   }
                }
            }
        }
    }
    return $base;
}


$result = validParams($base, [
        'posts' => [
            1 => [users => [99],
            ],
        ],
    ]);

var_dump($result);

抱歉，我将代码更改为程序样式，因为它更容易构建。

Laravel使用Array_Replace_Recursive仅替换第一个值

1 个答案: