我可以在php中获取多级关联数组的所有键吗 [英] Can I get all keys of an multi level associative arrays in php
本文介绍了我可以在php中获取多级关联数组的所有键吗的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
php中有什么方法可以获取php中多维数组的n级键?
这是我的关联数组，作为输出，我需要一个包含键 object_id 的所有值的数组，因为您可以从结构本身中找到许多 object_id ，那么如何获取键 object_id 的所有值?
数组'购物车'=>大批12061 =>大批'object_id'=>字符串'12061'(长度= 5)'discriminator'=>字符串'SimpleProductOffering'(长度= 21)'spec'=>大批100012061 =>大批'object_id'=>字符串'100012061'(长度= 9)'discriminator'=>字符串"CompositeProductSpecification"(长度= 29)'特征'=>大批'MAIN_CPE'=>大批'object_id'=>字符串'1000000000015'(长度= 13)'is_configurable'=>字符串'0'(长度= 1)'trait_value'=>大批10001 =>大批'object_id'=>字符串'10001'(长度= 5)'抵押'=>大批空的'抵押'=>大批空的'offer_type'=>空值'价格'=>大批12862 =>大批'object_id'=>字符串'12862'(长度= 5)'discriminator'=>字符串'RecurringChargeProdOfferPriceCharge'(长度= 35)'price_alteration'=>大批空的'抵押'=>大批空的12876 =>大批'object_id'=>字符串'12876'(长度= 5)'discriminator'=>字符串'RecurringChargeProdOfferPriceCharge'(长度= 35)'price_alteration'=>大批0 =>字符串'12876'(长度= 5)1 =>字符串'12894'(长度= 5)'抵押'=>大批空的'contained_offers'=>大批空的'family'=>大批0 =>字符串电视订阅"(长度= 24)'relationship'=>大批'儿童'=>大批'object_id'=>字符串'1206102000'(长度= 10)'min'=>字符串'0'(长度= 1)'max'=>字符串'1000000'(长度= 7)'related_offer'=>大批0 =>字符串'10410'(长度= 5)1 =>字符串'10411'(长度= 5)'REQUIREMENTS'=>大批'object_id'=>字符串'1206104000'(长度= 10)'min'=>字符串'1'(长度= 1)'max'=>字符串'1'(长度= 1)'related_offer'=>大批0 =>字符串'11950'(长度= 5)1 =>字符串'11990'(长度= 5)'EXCLUSIONS'=>大批'object_id'=>字符串'1206101000'(长度= 10)'min'=>字符串'1'(长度= 1)'max'=>字符串'1'(长度= 1)'related_offer'=>大批0 =>字符串'12062'(长度= 5)1 =>字符串'12063'(长度= 5)'ALTERNATIVES'=>大批'object_id'=>字符串'1206105000'(长度= 10)'min'=>字符串'1'(长度= 1)'max'=>字符串'1'(长度= 1)'related_offer'=>大批0 =>字符串'12263'(长度= 5)'BUNDLE_ITEMS'=>大批'object_id'=>字符串'1206106000'(长度= 10)'min'=>字符串'1'(长度= 1)'max'=>字符串'1'(长度= 1)'related_offer'=>大批0 =>字符串'12062'(长度= 5)'financial_terms'=>大批'billing_period'=>大批0 =>字符串'QUARTERLY'(长度= 9)'payment_method'=>大批0 =>字符串'DIRECT_DEBIT'(长度= 12)'bill_presentation'=>大批0 =>字符串'PAPER'(长度= 5)'contract_constraints'=>大批'min_contract_period'=>整数24'cancellation_period'=>字符串'ALWAYS'(长度= 6)'notice_period'=>诠释3'rollover_period'=>诠释2'right_of_wd_period'=>整数1'抵押'=>大批空的10017 =>大批'object_id'=>字符串'10017'(长度= 5)'spec'=>大批100010017 =>大批'object_id'=>字符串'100010017'(长度= 9)'discriminator'=>字符串"CompositeProductSpecification"(长度= 29)'特征'=>大批空的'offer_type'=>空值'价格'=>大批300306 =>大批'object_id'=>字符串'300306'(长度= 6)'price_alteration'=>大批空的'抵押'=>大批空的12894 =>大批'object_id'=>字符串'12894'(长度= 5)'discriminator'=>字符串'RecurringChargeProdOfferPriceCharge'(长度= 35)'price_alteration'=>大批空的'抵押'=>大批空的12862 =>大批'object_id'=>字符串'12862'(长度= 5)'discriminator'=>字符串'RecurringChargeProdOfferPriceCharge'(长度= 35)'price_alteration'=>大批空的'抵押'=>大批空的12876 =>大批'object_id'=>字符串'12876'(长度= 5)'discriminator'=>字符串'RecurringChargeProdOfferPriceCharge'(长度= 35)'price_alteration'=>大批0 =>字符串'12876'(长度= 5)1 =>字符串'12894'(长度= 5)'抵押'=>大批空的'contained_offers'=>大批0 =>空值'family'=>大批空的'relationship'=>大批'EXCLUSIONS'=>大批'object_id'=>字符串'1001701000'(长度= 10)'min'=>字符串'1'(长度= 1)'max'=>字符串'1'(长度= 1)'related_offer'=>大批0 =>字符串'11893'(长度= 5)14 =>字符串'12305'(长度= 5)15 =>字符串'12306'(长度= 5)'financial_terms'=>大批'billing_period'=>大批0 =>字符串"MONTHLY"(长度= 7)1 =>字符串'QUARTERLY'(长度= 9)'payment_method'=>大批0 =>字符串'DIRECT_DEBIT'(长度= 12)1 =>字符串'DIRECT_DEBIT'(长度= 12)'bill_presentation'=>大批0 =>字符串"EMAIL"(长度= 5)1 =>字符串'PAPER'(长度= 5)'contract_constraints'=>大批'min_contract_period'=>整数24'cancellation_period'=>字符串'ALWAYS'(长度= 6)'notice_period'=>诠释3'rollover_period'=>诠释2'right_of_wd_period'=>整数1'抵押'=>大批空的0 =>大批11990 =>大批'object_id'=>字符串'11990'(长度= 5)'discriminator'=>字符串'SimpleProductOffering'(长度= 21)'spec'=>大批100011990 =>大批'object_id'=>字符串'100011990'(长度= 9)'discriminator'=>字符串"CompositeProductSpecification"(长度= 29)'特征'=>大批空的'offer_type'=>空值'价格'=>大批12862 =>大批'object_id'=>字符串'12862'(长度= 5)'discriminator'=>字符串'RecurringChargeProdOfferPriceCharge'(长度= 35)'price_alteration'=>大批空的'抵押'=>大批空的12876 =>大批'object_id'=>字符串'12876'(长度= 5)'discriminator'=>字符串'RecurringChargeProdOfferPriceCharge'(长度= 35)'price_alteration'=>大批10017 =>大批'object_id'=>字符串'10017'(长度= 5)'discriminator'=>字符串'RecurringChargeProdOfferPriceCharge'(长度= 35)'price_alteration'=>大批空的'抵押'=>大批空的12894 =>大批'object_id'=>字符串'12894'(长度= 5)'discriminator'=>字符串'RecurringChargeProdOfferPriceCharge'(长度= 35)'price_alteration'=>大批空的'抵押'=>大批空的'抵押'=>大批空的'contained_offers'=>大批空的'family'=>大批0 =>字符串'CATV'(长度= 4)'relationship'=>大批空的'financial_terms'=>大批'billing_period'=>大批0 =>字符串'QUARTERLY'(长度= 9)'payment_method'=>大批0 =>字符串'DIRECT_DEBIT'(长度= 12)'bill_presentation'=>大批0 =>字符串'PAPER'(长度= 5)'contract_constraints'=>大批'min_contract_period'=>整数24'抵押'=>大批空的 输出应该是一个包含键= object_id 的所有值的数组.请告知?
object_id 键的数组值.您的权衡;) function find_all($ needle，array $ haystack，array& $ result = null){//这是初始化结果数组，仅用于//此函数的第一个调用if(is_null($ result)){$ result = array();}foreach($ haystack as $ key => $ value){//检查键是否是我们要寻找的值.如果值//不是数组，请将其添加到结果数组.if($ key === $ needle&&！is_array($ value)){$ result [] = $ value;}if(is_array($ value)){//如果当前值为数组，则执行相同的操作//使用此子数组"进行操作.find_all($ needle，$ value，$ result);}}//只有在第一个函数调用中才需要检索结果返回$ result;} 如您所见，结果数组以引用的形式提供给函数的每个调用(由& 表示).这样，此函数的每个递归调用都可以访问相同数组，并且只能添加查找.
您可以这样做:
$ values = find_all('object_id'，$ array); 它为您提供了我的阵列:
数组([0] =>12061[1] =>100012061[2] =>1000000000015[3] =>10001[4] =>12862[5] =>12876[6] =>1206102000[7] =>1206104000[8] =>1206101000[9] =>1206105000[10] =>1206106000[11] =>10017[12] =>100010017[13] =>300306[14] =>12894[15] =>12862[16] =>12876[17] =>1001701000[18] =>11990[19] =>100011990[20] =>12862[21] =>12876[22] =>10017[23] =>12894) Is there any way in php wherein I can get n level keys for multi-dimensional array in php ?
Here is my associative array and as output I want an array which would contain all the values for keys object_id as you can there from the structure itself there are many nested levels for object_id and so how can I get all the values for keys object_id ?
array
'cart' =>
array
12061 =>
array
'object_id' => string '12061' (length=5)
'discriminator' => string 'SimpleProductOffering' (length=21)
'spec' =>
array
100012061 =>
array
'object_id' => string '100012061' (length=9)
'discriminator' => string 'CompositeProductSpecification' (length=29)
'trait' =>
array
'MAIN_CPE' =>
array
'object_id' => string '1000000000015' (length=13)
'is_configurable' => string '0' (length=1)
'trait_value' =>
array
10001 =>
array
'object_id' => string '10001' (length=5)
'collateral' =>
array
empty
'collateral' =>
array
empty
'offer_type' => null
'price' =>
array
12862 =>
array
'object_id' => string '12862' (length=5)
'discriminator' => string 'RecurringChargeProdOfferPriceCharge' (length=35)
'price_alteration' =>
array
empty
'collateral' =>
array
empty
12876 =>
array
'object_id' => string '12876' (length=5)
'discriminator' => string 'RecurringChargeProdOfferPriceCharge' (length=35)
'price_alteration' =>
array
0 => string '12876' (length=5)
1 => string '12894' (length=5)
'collateral' =>
array
empty
'contained_offers' =>
array
empty
'family' =>
array
0 => string 'TV Subscription' (length=24)
'relationship' =>
array
'CHILDREN' =>
array
'object_id' => string '1206102000' (length=10)
'min' => string '0' (length=1)
'max' => string '1000000' (length=7)
'related_offer' =>
array
0 => string '10410' (length=5)
1 => string '10411' (length=5)
'REQUIREMENTS' =>
array
'object_id' => string '1206104000' (length=10)
'min' => string '1' (length=1)
'max' => string '1' (length=1)
'related_offer' =>
array
0 => string '11950' (length=5)
1 => string '11990' (length=5)
'EXCLUSIONS' =>
array
'object_id' => string '1206101000' (length=10)
'min' => string '1' (length=1)
'max' => string '1' (length=1)
'related_offer' =>
array
0 => string '12062' (length=5)
1 => string '12063' (length=5)
'ALTERNATIVES' =>
array
'object_id' => string '1206105000' (length=10)
'min' => string '1' (length=1)
'max' => string '1' (length=1)
'related_offer' =>
array
0 => string '12263' (length=5)
'BUNDLE_ITEMS' =>
array
'object_id' => string '1206106000' (length=10)
'min' => string '1' (length=1)
'max' => string '1' (length=1)
'related_offer' =>
array
0 => string '12062' (length=5)
'financial_terms' =>
array
'billing_period' =>
array
0 => string 'QUARTERLY' (length=9)
'payment_method' =>
array
0 => string 'DIRECT_DEBIT' (length=12)
'bill_presentation' =>
array
0 => string 'PAPER' (length=5)
'contract_constraints' =>
array
'min_contract_period' => int 24
'cancellation_period' => string 'ALWAYS' (length=6)
'notice_period' => int 3
'rollover_period' => int 2
'right_of_wd_period' => int 1
'collateral' =>
array
empty
10017 =>
array
'object_id' => string '10017' (length=5)
'spec' =>
array
100010017 =>
array
'object_id' => string '100010017' (length=9)
'discriminator' => string 'CompositeProductSpecification' (length=29)
'trait' =>
array
empty
'offer_type' => null
'price' =>
array
300306 =>
array
'object_id' => string '300306' (length=6)
'price_alteration' =>
array
empty
'collateral' =>
array
empty
12894 =>
array
'object_id' => string '12894' (length=5)
'discriminator' => string 'RecurringChargeProdOfferPriceCharge' (length=35)
'price_alteration' =>
array
empty
'collateral' =>
array
empty
12862 =>
array
'object_id' => string '12862' (length=5)
'discriminator' => string 'RecurringChargeProdOfferPriceCharge' (length=35)
'price_alteration' =>
array
empty
'collateral' =>
array
empty
12876 =>
array
'object_id' => string '12876' (length=5)
'discriminator' => string 'RecurringChargeProdOfferPriceCharge' (length=35)
'price_alteration' =>
array
0 => string '12876' (length=5)
1 => string '12894' (length=5)
'collateral' =>
array
empty
'contained_offers' =>
array
0 => null
'family' =>
array
empty
'relationship' =>
array
'EXCLUSIONS' =>
array
'object_id' => string '1001701000' (length=10)
'min' => string '1' (length=1)
'max' => string '1' (length=1)
'related_offer' =>
array
0 => string '11893' (length=5)
14 => string '12305' (length=5)
15 => string '12306' (length=5)
'financial_terms' =>
array
'billing_period' =>
array
0 => string 'MONTHLY' (length=7)
1 => string 'QUARTERLY' (length=9)
'payment_method' =>
array
0 => string 'DIRECT_DEBIT' (length=12)
1 => string 'DIRECT_DEBIT' (length=12)
'bill_presentation' =>
array
0 => string 'EMAIL' (length=5)
1 => string 'PAPER' (length=5)
'contract_constraints' =>
array
'min_contract_period' => int 24
'cancellation_period' => string 'ALWAYS' (length=6)
'notice_period' => int 3
'rollover_period' => int 2
'right_of_wd_period' => int 1
'collateral' =>
array
empty
0 =>
array
11990 =>
array
'object_id' => string '11990' (length=5)
'discriminator' => string 'SimpleProductOffering' (length=21)
'spec' =>
array
100011990 =>
array
'object_id' => string '100011990' (length=9)
'discriminator' => string 'CompositeProductSpecification' (length=29)
'trait' =>
array
empty
'offer_type' => null
'price' =>
array
12862 =>
array
'object_id' => string '12862' (length=5)
'discriminator' => string 'RecurringChargeProdOfferPriceCharge' (length=35)
'price_alteration' =>
array
empty
'collateral' =>
array
empty
12876 =>
array
'object_id' => string '12876' (length=5)
'discriminator' => string 'RecurringChargeProdOfferPriceCharge' (length=35)
'price_alteration' =>
array
10017 =>
array
'object_id' => string '10017' (length=5)
'discriminator' => string 'RecurringChargeProdOfferPriceCharge' (length=35)
'price_alteration' =>
array
empty
'collateral' =>
array
empty
12894 =>
array
'object_id' => string '12894' (length=5)
'discriminator' => string 'RecurringChargeProdOfferPriceCharge' (length=35)
'price_alteration' =>
array
empty
'collateral' =>
array
empty
'collateral' =>
array
empty
'contained_offers' =>
array
empty
'family' =>
array
0 => string 'CATV' (length=4)
'relationship' =>
array
empty
'financial_terms' =>
array
'billing_period' =>
array
0 => string 'QUARTERLY' (length=9)
'payment_method' =>
array
0 => string 'DIRECT_DEBIT' (length=12)
'bill_presentation' =>
array
0 => string 'PAPER' (length=5)
'contract_constraints' =>
array
'min_contract_period' => int 24
'collateral' =>
array
empty
Output should be an array which would contain all the values for keys = object_id. Kindly advise ?
解决方案
Dereleased's solution will be faster I guess (as it uses internal loops), mine can also deal with array values for object_id keys. Your tradeoff ;)
function find_all($needle, array $haystack, array &$result = null) {
// This is to initialize the result array and is only needed for
// the first call of this function
if(is_null($result)) {
$result = array();
}
foreach($haystack as $key => $value) {
// Check whether the key is the value we are looking for. If the value
// is not an array, add it to the result array.
if($key === $needle && !is_array($value)) {
$result[] = $value;
}
if(is_array($value)) {
// If the current value is an array, we perform the same
// operation with this 'subarray'.
find_all($needle, $value, $result);
}
}
// This is only needed in the first function call to retrieve the results
return $result;
}
As you can see, the result array is given to every call of the function as reference (denoted by the &). This way, every recursive call of this function has access to the same array and can just add a find.
You can do:
$values = find_all('object_id', $array);
It gives me for your array:
Array
(
[0] => 12061
[1] => 100012061
[2] => 1000000000015
[3] => 10001
[4] => 12862
[5] => 12876
[6] => 1206102000
[7] => 1206104000
[8] => 1206101000
[9] => 1206105000
[10] => 1206106000
[11] => 10017
[12] => 100010017
[13] => 300306
[14] => 12894
[15] => 12862
[16] => 12876
[17] => 1001701000
[18] => 11990
[19] => 100011990
[20] => 12862
[21] => 12876
[22] => 10017
[23] => 12894
)
这篇关于我可以在php中获取多级关联数组的所有键吗的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
查看全文
