我有一个多维数组，我试图从中使用foreach来提取值。
它检索了JSON格式，因此我使用json_decode将其转换为关联数组。
该数组包含各种产品的定价信息。我正在努力解决的问题是它为每个产品包含多个嵌套数组。
因此，我不确定如何将其整合到foreach。
数组$ arr：
Array
(
[result] => success
[totalresults] => 3
[products] => Array
(
[product] => Array
(
[0] => Array
(
[pid] => 2
[gid] => 2
[type] => other
[name] => Shared Hosting
[description] => Shared Cloud
[module] => custom server
[paytype] => onetime
[pricing] => Array
(
[GBP] => Array
(
[prefix] => £
[suffix] => GBP
[msetupfee] => 0.00
[qsetupfee] => 0.00
[ssetupfee] => 0.00
[asetupfee] => 0.00
[bsetupfee] => 0.00
[tsetupfee] => 0.00
[monthly] => 0.00
[quarterly] => -1.00
[semiannually] => -1.00
[annually] => -1.00
[biennially] => -1.00
[triennially] => -1.00
)
)
[customfields] => Array
(
[customfield] => Array
(
)
)
[configoptions] => Array
(
[configoption] => Array
(
[0] => Array
(
[id] => 2
[name] => Years
[type] => 2
[options] => Array
(
[option] => Array
(
[0] => Array
(
[id] => 2
[name] => 1 Year
[recurring] =>
[pricing] => Array
(
[GBP] => Array
(
[msetupfee] => 0.00
[qsetupfee] => 0.00
[ssetupfee] => 0.00
[asetupfee] => 0.00
[bsetupfee] => 0.00
[tsetupfee] => 0.00
[monthly] => 69.00
[quarterly] => 0.00
[semiannually] => 0.00
[annually] => 0.00
[biennially] => 0.00
[triennially] => 0.00
)
)
)
[1] => Array
(
[id] => 5
[name] => 2 Years
[recurring] =>
[pricing] => Array
(
[GBP] => Array
(
[msetupfee] => 0.00
[qsetupfee] => 0.00
[ssetupfee] => 0.00
[asetupfee] => 0.00
[bsetupfee] => 0.00
[tsetupfee] => 0.00
[monthly] => 138.00
[quarterly] => 0.00
[semiannually] => 0.00
[annually] => 0.00
[biennially] => 0.00
[triennially] => 0.00
)
)
)
[2] => Array
(
[id] => 8
[name] => 3 Years
[recurring] =>
[pricing] => Array
(
[GBP] => Array
(
[msetupfee] => 0.00
[qsetupfee] => 0.00
[ssetupfee] => 0.00
[asetupfee] => 0.00
[bsetupfee] => 0.00
[tsetupfee] => 0.00
[monthly] => 276.00
[quarterly] => 0.00
[semiannually] => 0.00
[annually] => 0.00
[biennially] => 0.00
[triennially] => 0.00
)
)
)
[3] => Array
(
[id] => 11
[name] => 4 Years
[recurring] =>
[pricing] => Array
(
[GBP] => Array
(
[msetupfee] => 0.00
[qsetupfee] => 0.00
[ssetupfee] => 0.00
[asetupfee] => 0.00
[bsetupfee] => 0.00
[tsetupfee] => 0.00
[monthly] => 552.00
[quarterly] => 0.00
[semiannually] => 0.00
[annually] => 0.00
[biennially] => 0.00
[triennially] => 0.00
)
)
)
[4] => Array
(
[id] => 14
[name] => 5 Years
[recurring] =>
[pricing] => Array
(
[GBP] => Array
(
[msetupfee] => 0.00
[qsetupfee] => 0.00
[ssetupfee] => 0.00
[asetupfee] => 0.00
[bsetupfee] => 0.00
[tsetupfee] => 0.00
[monthly] => 1104.00
[quarterly] => 0.00
[semiannually] => 0.00
[annually] => 0.00
[biennially] => 0.00
[triennially] => 0.00
)
)
)
)
)
)
)
)
)
对于每个产品ID（[product]），[pid]重复上述部分 - 我无法将整个数组放入帖子中，因此这里是指向它的链接 - http://pastebin.com/0qgh5scG
我想要实现的是将数组中每个产品ID [pid]的名称描述和每个月*价格拉到它自己的数组中，该数组变量名称是关联的{{1} }。
*（每月价格实际上是年度价格，只是模块将数据存储在数据库中的奇怪方式）
我已尝试[pid]：
foreach产品ID，检索正常，但我如何为每个产品ID $arr = json_decode($jsondata, true); # Decode JSON String
foreach ($arr['products']['product'] as $num) {
$pid = $num['pid'];
$yearlycosts = $arr['configoptions']['configoption']['0']['options']['option'][0]['pricing']['GBP']['monthly'];
echo $pid;
echo $yearlycosts;
}
提取多个[name]和相关的多个[monthly]值？
我现有[pid]内是否需要foreach？
最终我想将这些值传递给新数组，每个数组都以相应的foreach值命名。但我认为这对我来说是一个单独的问题/挑战。
我希望我上面有道理。我是数组的新手，在搜索相当多的例子时，没有找到任何像上面那样复杂的数组，或者有唯一命名的部分。
答案 0 :(得分：1)
首先，这个$ price变量来自哪里？你最初使用$ num。
是的，只是一个嵌套的foreach循环会像这样做：
$arr = json_decode($jsondata, true); # Decode JSON String
foreach ($arr['products']['product'] as $num) {
$pid = $num['pid'];
echo "Product ID: ".$pid."\n";
echo "Options: \n"
$i = 1;
foreach($num['configoptions']['configoption']['0']['options']['option'] as $option)
{
$name = $option['name'];
$yearlycosts = $option['pricing']['GBP']['monthly'];
echo " - Option ".$i.": ".$name." ($".$yearlycosts.")\n";
++$i;
}
}
答案 1 :(得分：0)
首先，查看数组结构，'CUSTOMFIELDS'只是一个空键，它不包含'CONFIGOPTION'。
所以这个：
echo $k['CUSTOMFIELDS'][CONFIGOPTIONS][CONFIGOPTION][OPTIONS][OPTION][NAME];
echo $k['CUSTOMFIELDS'][CONFIGOPTIONS][CONFIGOPTION][OPTIONS][OPTION][MONTHLY];
需要看起来像这样：
echo $k[CONFIGOPTIONS][CONFIGOPTION][OPTIONS][OPTION][NAME];
echo $k[CONFIGOPTIONS][CONFIGOPTION][OPTIONS][OPTION][MONTHLY];
我想我可能会先尝试修复索引的所有名称，然后让我的生活变得轻松。我会用这个函数遍历整个数组：
function traverseArray($array)
{
// Loops through each element. If element again is array, function is recalled. If not, result is echoed.
foreach($array as $key=>$value)
{
if (is_array($value))
{
traverseArray($value);
} else {
if (preg_match("/[0-9]/", $key) && !isset($array[preg_replace("[0-9]", "", $key)]))
$array[preg_replace("[0-9]", "", $key)] = $value;
}
}
}
这个函数（在这里找到：http://snipplr.com/view/10200/并为当前问题修改它）将遍历整个数组，每个级别，并从数组键的末尾删除数字如果没有数字的键没有不存在。原因是这些数组中的一些包含多个数组，其中包含OPTION，OPTION12，OPTION43等键。如果存在同一级别中没有数字的键，则会使其保持不变。现在，它将所有数字从PRICING，GBP等密钥中移除。我们只剩下一些OPTION键，最后会有数字。然后我们就可以去了：
traverseArray($arr); // Goes through arrray and removes random numbers unless not possible
foreach($k['CONFIGOPTIONS']['CONFIGOPTION']['OPTIONS'] as $option) {
echo $option['NAME'];
echo $option['PRICING']['GBP']['MONTHLY'];
}
试一试。我认为这应该有效。
P.S。：他们应该在他们的结尾处找到关于那个API的东西，因为这是一个可怕的阵列。这没有理由。