从数组中递归提取键路径 - 不包括数字键 [英] Recursively extract key paths from array - excluding numeric keys
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问题描述
在 php 中，我需要一个函数来返回对象数组中的所有键.对于数组和对象，我需要像 parentkey->key 这样的键.如果键又是一个数组，那么我需要 parentkey->key->key1.
我的代码如下
$array=json_decode('{"client":"4","gateWay":"1","store":"store.shop.com",valid":true"，po":34535，additionalPO":23423，customerNotes":"，"orderItems":[{"item":"123","quantity":10,"supplierLotNo":"","customsValue":"","customsDescription":"","hsCode":""},{项目":345"，数量":50}]，shippingInfos":[{地址":{城市":钦奈"，国家":印度"，邮政编码":86715"，州":TN"，streetAddress1":6971 North Street"，streetAddress2":null}，联系人":{公司":null，电子邮件":info@store.com"，firstName":test"，"lastName":"test","phoneNo":null},"ServiceId":"3","thirdPartyAccountNo":"","signatureConfirmation":false,"saturdayDelivery":false}]}',true);函数array_keys_multi(数组$array，$headkey，$pkey){$keys = array();$hkey='';$parentkey='';foreach ($array as $key => $value) {//echo $key;if($headkey!='' && !is_integer($headkey)){if(!is_integer($key)){if (is_array($value) || is_object($value)) {if($pkey!='')$parentkey=$pkey."->".$key;别的$parentkey=$key;foreach($value as $kk=>$val){foreach($val as $kk1=>$val1){$keys[]=$parentkey."->".$kk1;}}//$keys[]=$parentkey."->".$key;}别的{$keys[] = $pkey."->".$key;$hkey=$headkey."->".$key;}}}别的{if(!is_integer($key)){if($pkey!='')$parentkey=$pkey."->".$key;别的$parentkey=$key;if (is_array($value) || is_object($value)) {if($pkey!='')$parentkey=$pkey."->".$key;别的$parentkey=$key;foreach($value as $kk=>$val){//print_r($val);echo "==========";foreach($val as $kk1=>$val1){$keys[]=$parentkey."->".$kk1;}}$hkey=$key;}别的{$keys[]=$key;}}}if (is_array($value) || is_object($value)) {echo $key."-----".$hkey."<br>";$keys = array_merge($keys, array_keys_multi($value,$hkey,$key));}}返回 $keys;}$k=array_keys_multi($array,'','');打印_r($k);我需要输出为具有以下键路径的数组(注意没有保留数字键):
<预><代码>[客户"，网关"，商店"，有效"，宝"，额外的PO"，客户备注"，orderItems->item"，订单项->数量"，"orderItems->supplierLotNo",orderItems->customsValue"，orderItems->customsDescription"，orderItems->hsCode"，shippingInfos->地址->城市"，shippingInfos->地址->国家"，shippingInfos->地址->邮政编码"，shippingInfos->地址->状态"，shippingInfos->address->streetAddress1"，shippingInfos->地址->streetAddress2"，shippingInfos->联系方式->公司"，shippingInfos->联系方式->电子邮件"，shippingInfos->contact->firstName",shippingInfos->contact->lastName",shippingInfos->contact->phoneNo",shippingInfos->ServiceId"，shippingInfos->thirdPartyAccountNo"，shippingInfos->signatureConfirmation",shippingInfos->saturdayDelivery"]我怎样才能做到这一点?
解决方案
从这个非常相似的递归代码段开始，我更改键路径分隔符并扩展算法以排除数字键和有孩子的父母.
代码:(演示)
function getUniqueObjectKeyPaths($array, $parentKey = "") {$keys = [];foreach ($array as $parentKey => $v) {如果(is_array($v)){$nestedKeys = getUniqueObjectKeyPaths($v, $parentKey);foreach($nestedKeys as $index => $key) {如果 (!is_numeric($parentKey) && !is_numeric($key)) {$nestedKeys[$index] = $parentKey ."->>.$key;}}array_push($keys, ...$nestedKeys);} elseif (!is_numeric($parentKey)) {$keys[] = $parentKey;}}返回 $keys;}var_export(getUniqueObjectKeyPaths($array));输出:
数组 (0 =>'客户'，1 =>'网关',2 =>'店铺'，3 =>'有效的'，4 =>'噗',5 =>'附加PO',6 =>'客户备注',7 =>'orderItems->item',8 =>'订单项->数量',9 =>'orderItems->supplierLotNo',10 =>'orderItems->customsValue',11 =>'orderItems->customsDescription',12 =>'orderItems->hsCode',13 =>'orderItems->item',14 =>'订单项->数量',15 =>'shippingInfos->地址->城市',16 =>'shippingInfos->地址->国家',17 =>'shippingInfos->地址->邮政编码',18 =>'shippingInfos->地址->状态',19 =>'shippingInfos->address->streetAddress1',20 =>'shippingInfos->地址->streetAddress2',21 =>'shippingInfos->联系方式->公司',22 =>'shippingInfos->联系方式->电子邮件',23 =>'shippingInfos->contact->firstName',24 =>'shippingInfos-> 联系人-> 姓氏',25 =>'shippingInfos->contact->phoneNo',26 =>'shippingInfos->ServiceId',27 =>'shippingInfos->thirdPartyAccountNo',28 =>'shippingInfos->signatureConfirmation',29 =>'shippingInfos->saturdayDelivery',)In php, I need a function to return all keys in array of objects. For arrays and objects I need keys like parentkey->key. If the key is again an array, then I need parentkey->key->key1.
My code as below
$array=json_decode('{"client":"4","gateWay":"1","store":"store.shop.com",
"valid":"true","po":34535,"additionalPO":23423,"customerNotes":"",
"orderItems":[{"item":"123","quantity":10,"supplierLotNo":"",
"customsValue":"","customsDescription":"","hsCode":""},
{"item":"345","quantity":50}],
"shippingInfos":[{"address":{"city":"Chennai",
"country":"India","postalCode":"86715","state":"TN",
"streetAddress1":"6971 North Street","streetAddress2":null},
"contact":{"company":null,"email":"info@store.com","firstName":"test",
"lastName":"test","phoneNo":null},"ServiceId":"3","thirdPartyAccountNo":"",
"signatureConfirmation":false,"saturdayDelivery":false}]}',true);
function array_keys_multi(array $array,$headkey,$pkey){
$keys = array();$hkey='';$parentkey='';
foreach ($array as $key => $value) {
//echo $key;
if($headkey!='' && !is_integer($headkey)){
if(!is_integer($key)){
if (is_array($value) || is_object($value)) {
if($pkey!='')
$parentkey=$pkey."->".$key;
else
$parentkey=$key;
foreach($value as $kk=>$val){
foreach($val as $kk1=>$val1){
$keys[]=$parentkey."->".$kk1;
}
}
//$keys[]=$parentkey."->".$key;
}else{
$keys[] = $pkey."->".$key;
$hkey=$headkey."->".$key;
}
}
}
else{
if(!is_integer($key)){
if($pkey!='')
$parentkey=$pkey."->".$key;
else
$parentkey=$key;
if (is_array($value) || is_object($value)) {
if($pkey!='')
$parentkey=$pkey."->".$key;
else
$parentkey=$key;
foreach($value as $kk=>$val){
//print_r($val);echo "==========";
foreach($val as $kk1=>$val1){
$keys[]=$parentkey."->".$kk1;
}
}
$hkey=$key;
}else{
$keys[]=$key;
}
}
}
if (is_array($value) || is_object($value)) {
echo $key."-----".$hkey."<br>";
$keys = array_merge($keys, array_keys_multi($value,$hkey,$key));
}
}
return $keys;
}
$k=array_keys_multi($array,'','');
print_r($k);
I need output as an array with the following key paths (notice no numeric keys are retained):
[
"client",
"gateWay",
"store",
"valid",
"po",
"additionalPO",
"customerNotes",
"orderItems->item",
"orderItems->quantity",
"orderItems->supplierLotNo",
"orderItems->customsValue",
"orderItems->customsDescription",
"orderItems->hsCode",
"shippingInfos->address->city",
"shippingInfos->address->country",
"shippingInfos->address->postalCode",
"shippingInfos->address->state",
"shippingInfos->address->streetAddress1",
"shippingInfos->address->streetAddress2",
"shippingInfos->contact->company",
"shippingInfos->contact->email",
"shippingInfos->contact->firstName",
"shippingInfos->contact->lastName",
"shippingInfos->contact->phoneNo",
"shippingInfos->ServiceId",
"shippingInfos->thirdPartyAccountNo",
"shippingInfos->signatureConfirmation",
"shippingInfos->saturdayDelivery"
]
How can I achieve this?
解决方案
Starting from this very similar recursive snippet, I changed the key path separator and extended the algorithm to exclude numeric keys and parents with children.
Code: (Demo)
function getUniqueObjectKeyPaths($array, $parentKey = "") {
$keys = [];
foreach ($array as $parentKey => $v) {
if (is_array($v)) {
$nestedKeys = getUniqueObjectKeyPaths($v, $parentKey);
foreach($nestedKeys as $index => $key) {
if (!is_numeric($parentKey) && !is_numeric($key)) {
$nestedKeys[$index] = $parentKey . "->" . $key;
}
}
array_push($keys, ...$nestedKeys);
} elseif (!is_numeric($parentKey)) {
$keys[] = $parentKey;
}
}
return $keys;
}
var_export(getUniqueObjectKeyPaths($array));
Output:
array (
0 => 'client',
1 => 'gateWay',
2 => 'store',
3 => 'valid',
4 => 'po',
5 => 'additionalPO',
6 => 'customerNotes',
7 => 'orderItems->item',
8 => 'orderItems->quantity',
9 => 'orderItems->supplierLotNo',
10 => 'orderItems->customsValue',
11 => 'orderItems->customsDescription',
12 => 'orderItems->hsCode',
13 => 'orderItems->item',
14 => 'orderItems->quantity',
15 => 'shippingInfos->address->city',
16 => 'shippingInfos->address->country',
17 => 'shippingInfos->address->postalCode',
18 => 'shippingInfos->address->state',
19 => 'shippingInfos->address->streetAddress1',
20 => 'shippingInfos->address->streetAddress2',
21 => 'shippingInfos->contact->company',
22 => 'shippingInfos->contact->email',
23 => 'shippingInfos->contact->firstName',
24 => 'shippingInfos->contact->lastName',
25 => 'shippingInfos->contact->phoneNo',
26 => 'shippingInfos->ServiceId',
27 => 'shippingInfos->thirdPartyAccountNo',
28 => 'shippingInfos->signatureConfirmation',
29 => 'shippingInfos->saturdayDelivery',
)
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