遍历PHP中的数组和子集

Question

我有以下数组：

Array（[@attributes] => Array（[version] => 010 [release] => 006）[Header] => Array（[To] => 6891118750001 [From] => 9911557 [MessageID] => 306b197fff044421b31c0a2a15e356c1 [RelatesToMessageID ] =>分辨率[SentTime] => 2014-09-16T12：19：50.8Z [Security] => Array（[Sender] => Array（[TertiaryIdentification] => 165）[Receiver] => Array（[TertiaryIdentification] => 2341））[RxReferenceNumber] => RxRef＃REFREQ 2.1 [PrescriberOrderNumber] => 13）[Body] => Array（[RefillRequest] => Array（[Pharmacy] => Array（[Identification] => Array（[ NCPDPID] => 9911557 [NPI] => 1801849179）[StoreName] => CA Pharmacy 10.6MU [Address] => Array（[AddressLine1] => 65432 Cabernet Turn [City] => Sonoma [State] => CA [ZipCode ] => 95476）[CommunicationNumbers] => Array（[Communication] => Array（[Number] => 7075557071 [Qualifier] => TE））））[Prescriber] => Array（[Identification] => Array（[NPI ] => 1234567893）[名称] =>数组（[LastName] => Jefferson）[地址] =>数组（[AddressLine1 ] => 5555 Labelle Lane [City] => Gaithersburg [State] => MD [ZipCode] => 20877）[CommunicationNumbers] => Array（[Communication] => Array（[0] => Array（[Number] = > 3105551515 [Qualifier] => TE）[1] => Array（[Number] => 3015551516 [Qualifier] => FX）））））[Patient] => Array（[Name] => Array（[LastName] = > Li [名字] => Ci）[性别] => U [DateOfBirth] =>数组（[Date] => 1923-10-18））[MedicationPrescribed] =>数组（[DrugDescription] => ZIOPTAN 0.0015％Ophthalmic解决方案[DrugCoded] =>数组（[ProductCode] => 00006393130 [ProductCodeQualifier] => ND）[Quantity] => Array（[Value] => 1 [CodeListQualifier] => 38 [UnitSourceCode] => AC [PotencyUnitCode] = > C54702）[方向] => D [替代] => 0 [书面日期] =>阵列（[日期] => 2014-04-01））[已分配药物] =>阵列（[药物描述] => ZIOPTAN 0.0015％眼药解决方案[DrugCoded] =>数组（[ProductCode] => 00006393130 [ProductCodeQualifier] => ND [DrugDBCode] => 1244616 [DrugDBCodeQualifier] => SBD）[Quantity] => Array（[Value] => 1 [CodeListQualifier] => 38 [UnitSourceCode] => AC [PotencyUnitCode] => C54702）[Directions] => D [Substitutions] => 0 [WrittenDate] = > Array（[Date] => 2014-04-01）[LastFillDate] => Array（[Date] => 2014-04-02））））））版本= 010

但是当我使用以下代码遍历它时：

function displayArrayRecursively($arr, $indent='') {
    if ($arr) {
        foreach ($arr as $value) {

            if (is_array($value)) {

                displayArrayRecursively($value, $indent . '');
            } else {
                echo key($arr) . " = $value<br>";
            }
        }
    }
}

displayArrayRecursively($arrXml);

它打印所有值，但不是所有正确的子集键名都被关联。 有任何想法吗？

谢谢！

NCoder

Answer 1

不要使用key()函数，而是使用foreach()的变量$key （或任何名称）直接访问数组键。 另外，您甚至没有使用$indent变量，因此我添加了所需的代码。 这是您要寻找的功能：

function displayArrayRecursively($arr, $indent='')
{
    if ($arr)
        foreach ($arr as $key => $value)
            if (is_array($value))
                displayArrayRecursively($value, $indent.'--');
            else
                echo $indent.$key." = $value<br>";
}