未设置值空数组多维php [重复]
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【中文标题】未设置值空数组多维php [重复]【英文标题】：unset values null array multidimensional php [duplicate] 【发布时间】：2022-01-08 19:30:15 【问题描述】：这是我第一次使用 ***，如果我做错了什么，非常抱歉。我也很感激你的建议。
我有下一个数组：
$dataPayment= [
"operationType" => null
"terminal" => 12345
"payment" => array:14 [
"terminal" => 12345
"order" => "1234519997"
"amount" => 100
"currency" => "EUR"
"secure" => 0
"idUser" => 123456789"
"tokenUser" => "zidkeKeu68Kld"
"urlOk" => null
"urlKo" => null
"originalIp" => "1.130.151.28"
"methodId" => 1
"trxType" => "N"
"userInteraction" => 1
"scaException" => "MIT"
]
"subscription" => array:2 [
"startDate" => null
"endDate" => null
]
]
我想删除空值。使用 array_filter 也删除值 0，但我需要这些值 0。我尝试了以下方法：
private function arrayUnset( $dataPayment )
foreach( $dataPayment as $key => $value )
if( is_array( $dataPayment[ $key ] ) )
$this->arrayUnset( $dataPayment[ $key ] );
if( $value === null || $value === "" )
unset( $dataPayment[ $key ] );
return $dataPayment;
但是，只删除第一个值。
$dataPayment = [
"terminal" => 12345
"payment" => array:14 [
"terminal" => 12345
"order" => "1234519997"
"amount" => 100
"currency" => "EUR"
"secure" => 0
"idUser" => 123456789"
"tokenUser" => "zidkeKeu68Kld"
"urlOk" => null
"urlKo" => null
"originalIp" => "1.130.151.28"
"methodId" => 1
"trxType" => "N"
"userInteraction" => 1
"scaException" => "MIT"
]
"subscription" => array:2 [
"startDate" => null
"endDate" => null
]
]
我需要以下数组：
$dataPayment = [
"terminal" => 12345
"payment" => array:14 [
"terminal" => 12345
"order" => "1234519997"
"amount" => 100
"currency" => "EUR"
"secure" => 0
"idUser" => 123456789"
"tokenUser" => "zidkeKeu68Kld"
"originalIp" => "1.130.151.28"
"methodId" => 1
"trxType" => "N"
"userInteraction" => 1
"scaException" => "MIT"
]
]
你能帮帮我吗？谢谢。
【问题讨论】：
【参考方案1】：你应该通过引用传递参数。
private function arrayUnset( &$dataPayment )
foreach( $dataPayment as $key => $value )
if( is_array( $dataPayment[ $key ] ) )
$dataPayment[ $key ] = $this->arrayUnset($value);
if( $value === null || $value === "" )
unset( $dataPayment[ $key ] );
return $dataPayment;
【讨论】：
【参考方案2】：该代码似乎没有删除0 值条目，但如果您想查看调用过程中的更改，则需要通过引用传递参数
$Payment = [
"operationType" => null,
"terminal" => 12345,
"payment" => [
"terminal" => 12345,
"order" => "1234519997",
"amount" => 100,
"currency" => "EUR",
"secure" => 0,
"idUser" => 123456789,
"tokenUser" => "zidkeKeu68Kld",
"urlOk" => null,
"urlKo" => null,
"originalIp" => "1.130.151.28",
"methodId" => 1,
"trxType" => "N",
"userInteraction" => 1,
"scaException" => "MIT"
],
"subscription" => [
"startDate" => null,
"endDate" => null
]
];
class xxx
private function arrayUnset( &$dataPayment )
foreach( $dataPayment as $key => $value )
if( is_array( $dataPayment[ $key ] ) )
$this->arrayUnset( $dataPayment[ $key ] );
if( $value === null || $value === "" )
unset( $dataPayment[ $key ] );
return $dataPayment;
public function zzz($data)
return $this->arrayUnset($data);
$obj = new xxx;
print_r($obj->zzz($Payment));
结果
Array
(
[terminal] => 12345
[payment] => Array
(
[terminal] => 12345
[order] => 1234519997
[amount] => 100
[currency] => EUR
[secure] => 0
[idUser] => 123456789
[tokenUser] => zidkeKeu68Kld
[originalIp] => 1.130.151.28
[methodId] => 1
[trxType] => N
[userInteraction] => 1
[scaException] => MIT
)
[subscription] => Array
(
)
)
【讨论】：
【参考方案3】：数组过滤器移除空元素，所以使用 mapWithKeys 映射你的数组，如果每个属性都是一个数组，使用array_filter()。运行二级过滤器，移除空数组。
$collection = collect($dataPayment);
$result = $collection->mapWithKeys(function ($item, $key)
if (is_array($item))
$item = array_filter($item);
return [$key => $item];
)->filter()->all();
这应该会产生预期的结果。如果代码有任何问题，请写。
【讨论】：
【参考方案4】：您没有存储递归调用的返回值。
试试：
<?php
$Payment = [
"operationType" => null,
"terminal" => 12345,
"payment" => [
"terminal" => 12345,
"order" => "1234519997",
"amount" => 100,
"currency" => "EUR",
"secure" => 0,
"idUser" => 123456789,
"tokenUser" => "zidkeKeu68Kld",
"urlOk" => null,
"urlKo" => null,
"originalIp" => "1.130.151.28",
"methodId" => 1,
"trxType" => "N",
"userInteraction" => 1,
"scaException" => "MIT"
],
"subscription" => [
"startDate" => null,
"endDate" => null
]
];
function arrayUnset($dataPayment)
foreach($dataPayment as $key => $value)
if(is_array($dataPayment[$key]))
$dataPayment[$key]=arrayUnset($dataPayment[$key]);
else if ($value==null || $value=="")
unset($dataPayment[$key]);
return $dataPayment;
print_r(arrayUnset($Payment));
输出：
大批 ( [终端] => 12345 [支付] => 数组 ( [终端] => 12345 [订购] => 1234519997 [数量] => 100 [货币] => 欧元 [安全] => 0 [idUser] => 123456789 [tokenUser] => zidkeKeu68Kld [原始IP] => 1.130.151.28 [方法ID] => 1 [trxType] => N [用户交互] => 1 [scaException] => 麻省理工学院 ) [订阅] => 数组 ( ) )Teh Playground!
【讨论】：
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