似乎无法从simpleXML对象中获取字符串

Question

I have my xml file

<names>
    <person>
        <name>John</name>
        <alias>
            <part>Joe</part>
            <part>Foo</part>
        </alias>
    </person>
</names>

which I saved as $xml.

foreach($xml as $person)
    var_dump($person->name);

The above code returns

object(SimpleXMLElement)#7 (1) {
  [0]=>
  string(4) "John"
}

instead of just

string(4) "John"

With the actual return it gives, I would assume adding [0] to the end of the variable would give me the correct return, but it returns the exact same thing. I have tried adding [0], ["0"], ->0, ->"0", and nothing works. The last 2 tries gave me a parse error, while the first 2 gave me the same response as the original.

How can I get the string(4) "John" from inside the object(SimpleXMLElement)?

Answer 1

That's because the XML is a resource, ie:

$xml = '<names>
        <person>
            <name>John</name>
            <alias>
                <part>Joe</part>
                <part>Foo</part>
            </alias>
        </person>
    </names>';

$parsed = simplexml_load_string($xml);

var_dump($parsed->getName());

Will output names, showing, that the element/layer you are in is named names.

And so will parsed->person->name give you a resource. If you want to drop the resource and just access the value, you need to convert it to string:

var_dump((string)$parsed->person->name);