Reading XML data in PHP, simple

问题

<?xml version="1.0" encoding="utf-8"?>
<mainXML>
    <items>
        <item category="Dekorationer" name="Flot væg" description="Meget flot væg. Passer alle stuer." price="149" />
        <item category="Fritid" name="Fodbold" description="Meget rund bold. Rørt af messi." price="600" />
    </items>
</mainXML>

How can i read this?

So i can make like a php loop that outputs the category, name and description for example?

I tried and started out with this:

    $doc = new DOMDocument();
    $doc->load( 'ex.xml' );

    $items = $doc->getElementsByTagName( "item" );
    foreach( $items as $item )
    {
        $categorys = $item->getElementsByTagName( "category" );
        $category = $categorys->item(0)->nodeValue;

        echo $category . " -- ";
    }

回答1:

category is an attribute (not a tag). See XMLWikipedia. To obtain it via the DOMElement, use getAttribute()Docs:

foreach ($items as $item)
{
    $category = $item->getAttribute('category');
    echo $category, ' -- ';
}

Same for description, just change the name of the attribute to obtain:

foreach ($items as $item)
{
    echo 'Category: ', $item->getAttribute("category"), "\n",
         'Description: ', $item->getAttribute("description"), ' -- ';
}

回答2:

I'd recommend PHP's simplexml_load_file()

$xml = simplexml_load_file($xmlFile);
foreach ($xml->items->item as $item) {
    echo $item['category'] . ", " . $item['name'] . ", " . $item['description'] . "\n";
}

UPDATED, missed the extra tag.

回答3:

Here an example using PHP's SimpleXML, specifically the simplexml_load_string function.

$xml = '<?xml version="1.0" encoding="utf-8"?>
<mainXML>
    <items>
        <item category="Dekorationer" name="Flot væg" description="Meget flot væg. Passer alle stuer." price="149" />
        <item category="Fritid" name="Fodbold" description="Meget rund bold. Rørt af messi." price="600" />
    </items>
</mainXML>';

 $xml = simplexml_load_string( $xml);

 foreach( $xml->items[0] as $item)
 {
     $attributes = $item[0]->attributes();
     echo 'Category: ' . $attributes['category'] . ', Name: ' . $attributes['name'] . ', Description: ' . $attributes['description'];
 }

来源：https://stackoverflow.com/questions/8482038/reading-xml-data-in-php-simple

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