我对 PHP 还很陌生，我正在尝试找出 array_filter，以及为什么它似乎不适合我。 我从 namecheap 沙箱中得到了一个大数组，可以向我的一位同事进行测试和学习。
因此，我将数组和指定的域 TLD 传递到我的函数中，并且我期望从“注册”产品类别返回单个价格。
class registerPrice {
function getRegisterPrice($domainTLD, $newArr) {
// Extract the "Register" product category for the target TLD
$registerCategory = array_filter($newArr['CommandResponse']['UserGetPricingResult']['ProductType'], function ($category) use ($domainTLD) {
return $category['@attributes']['Name'] === 'register' && $category['Product']['@attributes']['Name'] === $domainTLD;
});
// Extract the prices for the 1-year duration from the "register" category for the target TLD
$registerPrices = array_column($registerCategory, 'Product');
$registerPriceForOneYear = null;
foreach ($registerPrices as $product) {
foreach ($product as $price) {
if ($price['@attributes']['Duration'] == 1 && $price['@attributes']['DurationType'] == 'YEAR') {
$registerPriceForOneYear = $price['Price']['@attributes']['Price'];
break 2; // Exit both loops once the price for 1 year is found
}
}
}
return $registerPriceForOneYear;
}
}
我正在使用的数组的一部分：
Array
(
[@attributes] => Array
(
[Status] => OK
)
[Errors] => Array
(
)
[Warnings] => Array
(
)
[RequestedCommand] => namecheap.users.getpricing
[CommandResponse] => Array
(
[@attributes] => Array
(
[Type] => namecheap.users.getPricing
)
[UserGetPricingResult] => Array
(
[ProductType] => Array
(
[@attributes] => Array
(
[Name] => domains
)
[ProductCategory] => Array
(
[0] => Array
(
[@attributes] => Array
(
[Name] => reactivate
)
[Product] => Array
(
[@attributes] => Array
(
[Name] => com
)
[Price] => Array
(
[@attributes] => Array
(
[Duration] => 1
[DurationType] => YEAR
[Price] => 13.48
[PricingType] => MULTIPLE
[AdditionalCost] => 0.18
[RegularPrice] => 15.88
[RegularPriceType] => MULTIPLE
[RegularAdditionalCost] => 0.18
[RegularAdditionalCostType] => MULTIPLE
[YourPrice] => 13.48
[YourPriceType] => MULTIPLE
[YourAdditonalCost] => 0.18
[YourAdditonalCostType] => MULTIPLE
[PromotionPrice] => 0.0
[Currency] => USD
)
)
)
)
[1] => Array
(
[@attributes] => Array
(
[Name] => register
)
[Product] => Array
(
[@attributes] => Array
(
[Name] => com
)
[Price] => Array
(
[0] => Array
(
[@attributes] => Array
(
[Duration] => 1
[DurationType] => YEAR
[Price] => 10.28
[PricingType] => ABSOLUTE
[AdditionalCost] => 0.18
[RegularPrice] => 13.98
[RegularPriceType] => MULTIPLE
[RegularAdditionalCost] => 0.18
[RegularAdditionalCostType] => MULTIPLE
[YourPrice] => 10.28
[YourPriceType] => ABSOLUTE
[YourAdditonalCost] => 0.18
[YourAdditonalCostType] => MULTIPLE
[PromotionPrice] => 0.0
[Currency] => USD
)
)
每当我运行此命令时，我都会收到未定义的数组键错误。 我知道数据肯定存在，因为我可以像这样“硬编码”它：
$domainRegistration = $newArr['CommandResponse']['UserGetPricingResult']['ProductType']['ProductCategory']['2']['Product']['Price']['0']['@attributes']['Price'];
完整的错误在这里：
PHP Warning: Undefined array key "@attributes" in D:\xampp\htdocs\sm\registrationPrice.php on line 6
Warning: Undefined array key "@attributes" in D:\xampp\htdocs\sm\registrationPrice.php on line 6
Warning: Trying to access array offset on value of type null in D:\xampp\htdocs\sm\registrationPrice.php on line 6
Warning: Undefined array key "@attributes" in D:\xampp\htdocs\sm\registrationPrice.php on line 6
Warning: Trying to access array offset on value of type null in D:\xampp\htdocs\sm\registrationPrice.php on line 6
第 6 行是：
return $category['@attributes']['Name'] === 'register' && $category['Product']['@attributes']['Name'] === $domainTLD;过滤器需要结束
$newArr['CommandResponse']['UserGetPricingResult']['ProductType']['ProductCategory']内部
foreach$product['Price']$productfunction getRegisterPrice($domainTLD, $newArr) {
// Extract the "Register" product category for the target TLD
$registerCategory = array_filter($newArr['CommandResponse']['UserGetPricingResult']['ProductType']['ProductCategory'], function ($category) use ($domainTLD) {
//var_dump($category);
$catName = $category['@attributes']['Name'];
$prodName = $category['Product']['@attributes']['Name'];
//echo "Cat: $catName\nProduct: $prodName\n";
return $catName === 'register' && $prodName === $domainTLD;
});
//var_dump($registerCategory);
// Extract the prices for the 1-year duration from the "register" category for the target TLD
$registerPrices = array_column($registerCategory, 'Product');
var_dump($registerPrices);
$registerPriceForOneYear = null;
foreach ($registerPrices as $product) {
foreach ($product['Price'] as $price) {
if ($price['@attributes']['Duration'] == 1 && $price['@attributes']['DurationType'] == 'YEAR') {
$registerPriceForOneYear = $price['@attributes']['Price'];
break 2; // Exit both loops once the price for 1 year is found
}
}
}
return $registerPriceForOneYear;
}