數組通過鍵值改變結構

Question

我的代碼是：

$xml = simplexml_load_file('http://www.floatrates.com/daily/gel.xml');        
$cur = array($xml);
$array = json_decode(json_encode($cur), true);
$newArr = [];

foreach ($array as $value) {
    foreach($value['item'] as $key){
        array_push($newArr, [ $key['targetCurrency'] => $key ]);
        print '<pre>'; print_r($newArr); print '</pre>';
    }
}

和 output 是https://prnt.sc/terpnc

我需要像這個例子一樣：

[USD] => Array
(
    [title] => 1 GEL = 0.32613048 USD
    [link] => http://www.floatrates.com/gel/usd/
    [description] => 1 Georgian lari = 0.32613048 U.S. Dollar
    [pubDate] => Thu, 9 Jul 2020 12:00:01 GMT
    [baseCurrency] => GEL
    [baseName] => Georgian lari
    [targetCurrency] => USD
    [targetName] => U.S. Dollar
    [exchangeRate] => 0.32613048
    [inverseRate] => 3.06625741
    [inverseDescription] => 1 U.S. Dollar = 3.06625741 Georgian lari
)
[EUR] => Array
(
    [title] => 1 GEL = 0.28808543 EUR
    [link] => http://www.floatrates.com/gel/eur/
    [description] => 1 Georgian lari = 0.28808543 Euro
    [pubDate] => Thu, 9 Jul 2020 12:00:01 GMT
    [baseCurrency] => GEL
    [baseName] => Georgian lari
    [targetCurrency] => EUR
    [targetName] => Euro
    [exchangeRate] => 0.28808543
    [inverseRate] => 3.47119257
    [inverseDescription] => 1 Euro = 3.47119257 Georgian lari
)

我該怎么做？ 順便說一句，我的代碼多次獲得相同的值，例如您可以看到 [USD] => Array 149 次..

Answer 1

這是使您的代碼按您的意願工作所需的修改

$xml = simplexml_load_file('http://www.floatrates.com/daily/gel.xml');
$cur = array($xml);
$array = json_decode(json_encode($cur), true);
$newArr = [];

$currencies = $array[0]['item']; // here are your currencies
foreach($currencies as $currency) {
  $newArr[$currency['targetCurrency']] = $currency;
}

echo json_encode($newArr, JSON_PRETTY_PRINT);