Question

我面对以下XML：

我根本不喜欢XML。我一直使用JSON。我需要从XML返回2个数组。必须听取具体情况。我只需要今天类型有效的[currency]数组。像

[valid_from] => date('Y-m-d')

XML的在线URL：

Link here

我需要两个数组：

@type:XML_RATE_TYPE_EBNK_PURCHASE_DEVIZA
@valid_from:2015-12-12 00:00:00.0

和

@type:XML_RATE_TYPE_EBNK_SALE_DEVIZA
@valid_from:2015-12-12 00:00:00.0

Answer 1

您可以改为使用DomDocument - http://php.net/manual/en/class.domdocument.php

它允许您读取xml并选择其节点

// Example
$dom = new DomDocument();
$dom->loadXML( file_get_contents($path) ); // $path -> where your xml saved

// it has methods get element by tag name       
$tag = $dom->getElementsByTagName("some_tag_name");// it will return array
// it has methods get element attributees
$tag->item(0)->getAttribute('some_attribute'); // you can take 0 index and read its attribute 
// to take tag value you can
$tag->item(0)->item(0)->nodeValue
// ...

如果这个基本示例还不够，如果你可以在你的uestion中发布你的xml，我可以尝试帮助你创建精确的命令

<强>更新

$currencyArr1 = array();
$currencyArr2 = array();
$dom = new DomDocument();
$dom->loadXML( file_get_contents('http://104.236.115.118/application/currency_values/RB_Exchange_list.xml') );//$path path to your xml

$exchangeRates = $dom->getElementsByTagName("exchange_rate");

foreach ($exchangeRates as $exchangeRate){

    $validFrom = $exchangeRate->getAttribute('valid_from');// Your date
    $type = $exchangeRate->getAttribute('type');// Your type

    //First array case
    //@type:XML_RATE_TYPE_EBNK_PURCHASE_DEVIZA
    //@valid_from:2015-12-12 00:00:00.0
    if( $type == "XML_RATE_TYPE_EBNK_PURCHASE_DEVIZA" && 
        date('Y-m-d H:i:s', strtotime($validFrom)) == date('Y-m-d H:i:s', strtotime("2015-12-12 00:00:00")) ){

        $currencyes = $exchangeRate->getElementsByTagName("currency");

        foreach ($currencyes as $currency){
            $currencyArr1[] = array(
                    "name" => $currency->getAttribute("name"),
                    "quota" => $currency->getAttribute("quota"),
                    "rate" => $currency->getAttribute("rate"),
            );
        }
    }

    //Second array case
    //@type:XML_RATE_TYPE_EBNK_SALE_DEVIZA
    //@valid_from:2015-12-12 00:00:00
    if( $type == "XML_RATE_TYPE_EBNK_SALE_DEVIZA" && 
        date('Y-m-d H:i:s', strtotime($validFrom)) == date('Y-m-d H:i:s', strtotime("2015-12-12 00:00:00")) ){

        $currencyes = $exchangeRate->getElementsByTagName("currency");

        foreach ($currencyes as $currency){
            $currencyArr2[] = array(
                    "name" => $currency->getAttribute("name"),
                    "quota" => $currency->getAttribute("quota"),
                    "rate" => $currency->getAttribute("rate"),
            );
        }
    }
}

echo "ARRAY1:"; var_dump($currencyArr1);
echo "<br /><br />ARRAY2:"; var_dump($currencyArr2);

Answer 2

如果您对使用SimpleXML感兴趣，则应使用xpath function。

例如，理论上这应该让你遍历所有名为＆＃34; exchange_rate＆＃34;的元素。与type=XML_RATE_TYPE_EBNK_SALE_VALUTA

$content->xpath('exchange_rate[type="XML_RATE_TYPE_EBNK_SALE_VALUTA"]');

然后，您可以遍历结果并比较不同属性的值（通过attribute property找到）。

我如何通过simplexml_load_file解析XML中的特定数据

2 个答案: