讀取用PHP

Question

xml文件我有一個XML文件以這種格式

"note.xml" 
     <currencies> 
    <currency name="US dollar" code_alpha="USD" code_numeric="840" /> 
     <currency name="Euro" code_alpha="EUR" code_numeric="978" /> 

     </currencies> 

PHP CODE

$xml=simplexml_load_file("note.xml"); 

echo $xml->name. "<br>";    --no output 
echo $xml->code_alpha. "<br>";  --no output 
echo $xml->code_numeric . "<br>";  --no output 

    print_r($xml); 

的print_r的輸出（$ XML） - > SimpleXMLElement對象（[貨幣] => SimpleXMLElement對象（[@屬性] =>陣列（[名稱] =>美元[code_alpha] =>美元[code_numeric] => 840））

我沒有得到的ECHO陳述的任何輸出 我想「使用simplexml_load_file ' 一個試圖從它讀取，但它不起作用。請告訴我應該用什麼PHP代碼來讀取這種格式的XML文件。

Answer 1

使用的DomDocument：

<?php 
$str = <<<XML 
<currencies> 
    <currency name="US dollar" code_alpha="USD" code_numeric="840" /> 
    <currency name="Euro" code_alpha="EUR" code_numeric="978" /> 
</currencies> 
XML; 

$dom = new DOMDocument(); 
$dom->loadXML($str); 

foreach($dom->getElementsByTagName('currency') as $currency) 
{ 
    echo $currency->getAttribute('name'), "\n"; 
    echo $currency->getAttribute('code_alpha'), "\n"; 
    echo $currency->getAttribute('code_numeric'), "\n"; 
    echo "+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+\n"; 
} 
?> 

Live DEMO.

使用SimpleXML：

<?php 
$str = <<<XML 
<currencies> 
    <currency name="US dollar" code_alpha="USD" code_numeric="840" /> 
    <currency name="Euro" code_alpha="EUR" code_numeric="978" /> 
</currencies> 
XML; 


$currencies = new SimpleXMLElement($str); 
foreach($currencies as $currency) 
{ 
    echo $currency['name'], "\n"; 
    echo $currency['code_alpha'], "\n"; 
    echo $currency['code_numeric'], "\n"; 
    echo "+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+\n"; 
} 
?> 

Live DEMO.

Answer 2

可以使用的DomDocument來達到這個目的。

檢查對這個職位http://www.developersnote.com/2013/12/how-to-read-xml-file-in-php.html

$objDOM = new DOMDocument(); 

//Load xml file into DOMDocument variable 
$objDOM->load("../configuration.xml"); 

//Find Tag element "config" and return the element to variable $node 
$node = $objDOM->getElementsByTagName("config"); 

//looping if tag config have more than one 
foreach ($node as $searchNode) { 
    $dbHost = $searchNode->getAttribute('host'); 
    $dbUser = $searchNode->getAttribute('userdb'); 
    $dbPass = $searchNode->getAttribute('dbpass'); 
    $dbDatabase = $searchNode->getAttribute('database'); 
}