SimpleXML get node value

Question

Say I have this following XML structure:

<?xml version="1.0" encoding="UTF-8"?>
<main>
    <parent>
        <child1>some value</child1>
        <child2>another value</child2>
    </parent>
</main>

I made a variable of the XML and now I want to get the values of child1, so I use SimpleXML:

$xml = new SimpleXMLElement($xml);
$this->xmlcode = (string) $xml->main->parent->child1;

But I get this message: Notice: Trying to get property of non-object in /x.php on line x

I also tried it with $xml->parent->child1, but no success.

Anyone??

sigh This must be one of the most frequent errors ever. When you load an XML document into a SimpleXmlElement, the root node is the SimpleXmlElement, e.g. $xml = <main>. — Gordon
– Gordon, Commented Apr 8, 2011 at 10:35

vartec · Accepted Answer · 2011-04-08 10:14:19Z

31

$xml = new SimpleXMLElement($xml);
$this->xmlcode = (string) $xml->parent[0]->child1;

answered Apr 8, 2011 at 10:14

vartec

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1 Comment

JelleP Over a year ago

Problem solved for me by adding type (string) of (float) for example.

Paul · Accepted Answer · 2011-04-08 10:17:47Z

2

A good example of using XPath with php for the SimpleXMLElement can be found here http://www.php.net/manual/en/class.simplexmlelement.php#95229

// Find the topmost element of the domDocument
$xpath = new DOMXPath($xml);
$child1 = $xpath->evaluate('/main/parent/child1')->item(0);

answered Apr 8, 2011 at 10:17

Paul

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1 Comment

Gordon Over a year ago

SimpleXml can do XPath queries. There is no need to convert to DOM to do so. The only advantage of using evaluate is when getting typed results, which your example clearly doesn't do.

Solo.dmitry · Accepted Answer · 2020-10-09 08:03:35Z

0

Variant for xpath (Also how to get content of node having dashes in name):

<?xml version="1.0" encoding="UTF-8"?> <main>
<parent>
    <child-1>some value</child-1>
    <child-2>another value</child-2>
</parent> </main>

$xml = simplexml_load_string($content);
$node_value= (string)$xml->xpath('parent/child-1')[0];

result of $node_value:

"some value"

answered Oct 9, 2020 at 8:03

Solo.dmitry

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