Question

是否有从另一个读取数组的方法？

这是我的2阵列，

$productArr = [
    "PT" => [
        "cat" => [ "image" => "cat.jpg", "desc" => "blah blah"],
        "fish"=> [ "image" => "fish.jpg", "desc" => "blah blah"],
        "dog" => [ "image" => "dog.jpg","desc" => "blah blah"],
    ],
    "KC" => [
        "Ice" => [ "image" =>   "ice.jpg", "desc" => "mah mah mah"],
        "cold"=> [ "image" => "cold.jpg", "desc" => "mah mah mah"],
        "water"=> [ "image" =>   "water.jpg", "desc" => "mah mah mah"],
    ],

];

$featuredArr = [
    "KC" => "Ice",
    "PT" => "cat",
];

例如，从$featuredArr开始，“Ice”将与$productArr“Ice”链接，以生成“desc”和“image”。

Answer 1

使用此：

$code = "KC";
$product = $productArr[$code][$featuredArr[$code]];
echo $product['image'];
echo $product['desc'];

Answer 2

试试这个：

foreach($featuredArr as $key=>$val)
    if($productArr[$key][$val])
        print_r($productArr[$key][$val]);

Answer 3

$productArr = [
    "PT" => [
        "cat" => [ "image" => "cat.jpg", "desc" => "blah blah"],
        "fish"=> [ "image" => "fish.jpg", "desc" => "blah blah"],
        "dog" => [ "image" => "dog.jpg","desc" => "blah blah"],
    ],
    "KC" => [
        "Ice" => [ "image" =>   "ice.jpg", "desc" => "mah mah mah"],
        "cold"=> [ "image" => "cold.jpg", "desc" => "mah mah mah"],
        "water"=> [ "image" =>   "water.jpg", "desc" => "mah mah mah"],
    ],

];

$featuredArr = [
    "KC" => "Ice",
    "PT" => "cat",
];

foreach ($featuredArr as $key => $value) {
   if ($productArr[$key][$value]) {
      echo "key $key=>$value exists:  <br />";
      foreach ($productArr[$key][$value] as $newKey => $newValue) {
         echo "$newKey :: $newValue <br />";
      }
   }
}

输出：

key KC=>Ice exists:  <br />image :: ice.jpg <br />desc :: mah mah mah <br />key PT=>cat exists:  <br />image :: cat.jpg <br />desc :: blah blah <br />

请注意，这在很大程度上取决于您对键和值的使用方法：使用上面的代码，您可以通过在$ featuredArr数组中添加所需的key =＆gt;值对来在数组中进行动态循环。

希望这有帮助。

如何从php中的另一个数组中读取数组值？

3 个答案: