我有这个API，它提供了一个如下所示的数组：
[Air Strike] => Array
(
[defindex] => Array
(
[0] => 1104
)
[prices] => Array
(
[6] => Array
(
[Tradable] => Array
(
[Craftable] => Array
(
[0] => Array
(
[currency] => metal
[value] => 0.05
[last_update] => 1415072318
[difference] => -0.06
[value_raw] => 0.05
)
)
[Non-Craftable] => Array
(
[0] => Array
(
[currency] => metal
[value] => 0.11
[last_update] => 1436478504
[difference] => 0.03
[value_raw] => 0.11
)
)
)
)
[11] => Array
(
[Tradable] => Array
(
[Craftable] => Array
(
[0] => Array
(
[currency] => metal
[value] => 4
[last_update] => 1456277271
[difference] => -0.165
[value_raw] => 4
)
)
[Non-Craftable] => Array
(
[0] => Array
(
[currency] => metal
[value] => 3.66
[last_update] => 1456277553
[difference] => -0.34
[value_raw] => 3.66
)
)
)
)
)
)
有没有什么方法可以删除子数组，因为如果项目无法解决或者[＆＃39; value_raw＆＃39;]小于3，它们会因为缺少更好的单词而分歧？
我想要的输出是这样的：
[Air Strike] => Array
(
[defindex] => Array
(
[0] => 1104
)
[prices] => Array
(
[11] => Array
(
[Tradable] => Array
(
[Craftable] => Array
(
[0] => Array
(
[currency] => metal
[value] => 4
[last_update] => 1456277271
[difference] => -0.165
[value_raw] => 4
)
)
[Non-Craftable] => Array
(
[0] => Array
(
[currency] => metal
[value] => 3.66
[last_update] => 1456277553
[difference] => -0.34
[value_raw] => 3.66
)
)
)
)
)
)
我对此的看法是使用嵌套的foreach（）循环迭代每个子数组并检查[＆＃39; value_raw＆＃39;]的值以及它是否可以交易，但是如何我会知道要移除多少个子阵列而不会移除太多？也许从priceindex开始倒退，然后检查它是否包含多个子数组，以及它是否与其所有内容一起删除它？
答案 0 :(得分：0)
您可以通过一系列嵌套的foreach()循环获得所需的结果：
foreach( $airStrike['prices'] as $gKey => $group )
{
foreach( $group as $sKey => $subGroup )
{
if( $sKey !== 'Tradable' ) unset( $airStrike['prices'][$gKey][$sKey] );
else
{
foreach( $subGroup as $iKey => $item )
{
if( $item[0]['value_raw'] < 3 ) unset( $airStrike['prices'][$gKey][$sKey][$iKey] );
}
if( !count( $airStrike['prices'][$gKey][$sKey] ) ) unset( $airStrike['prices'][$gKey][$sKey] );
}
if( !count( $airStrike['prices'][$gKey] ) ) unset( $airStrike['prices'][$gKey] );
}
}
未设置键≠'Tradable'的项目。处理'可交易'子项，如果'value_raw'是＆lt; 3，未设置。参考您的示例，'Craftable'和'Non-Craftable'子数组被认为只有一个子数组：如果它们可以有多个子数组，则必须添加一个额外的{{1 } iside foreach()。
请注意，在level-2和level-3 foreach( $subGroup )的末尾，我检查当前数组是否为空，如果是 - 我取消设置。