extracting nodes and attributes from SimpleXMLElement Object

Question

i converted xml string into a simpleXMLElement object using simplexml_load_string whose value on print_r outputs

SimpleXMLElement Object ( [message] => SimpleXMLElement Object ( [@attributes] => Array ( [to] => Danny [type] => greeting [id] => msg1 ) [body] => To be or not to be! ) [status] => SimpleXMLElement Object ( [@attributes] => Array ( [time] => 2015-01-12 ) [0] => SimpleXMLElement Object ( [@attributes] => Array ( [count] => 0 ) ) ))

How can I extract node and attribute values from this object? Using

echo $xml->body

to get content of the body node is not outputting any value

UPDATE:

XML string

 <start> <message to="Danny" type="greeting" id="msg1 "> <body> To be or not to be! </body> </message> <status time="2015-01-12"> <offline count="0"></offline> </status> </start>

Would like to extract both the node values and attributes

see SimpleXml manual: php.net/manual/en/simplexml.examples-basic.php — michi
– michi, Commented Jan 12, 2016 at 11:50

Alex Andrei · Accepted Answer · 2016-01-12 11:03:13Z

Assuming $string holds the xml string in your question

To get the value of an individual xml node

$xml = simplexml_load_string($string); print $xml->message->body;

Will output

To be or not to be!

To get a specific attribute from a specific node

print $xml->message->attributes()->{'type'};

Will output

greeting

Unni · Accepted Answer · 2016-01-12 10:52:32Z

foreach($xml->body[0]->attributes() as $a => $b) { echo $a,'="',$b,"<br>"; }

PHP attributes() Function

Ingus · Accepted Answer · 2016-01-12 10:53:31Z

Look up SimpleXMLElement documentation on php.net: http://php.net/manual/en/class.simplexmlelement.php

There is a list of methods for this class and one of them is attributes, which returns all of element attributes: http://php.net/manual/en/simplexmlelement.attributes.php

I believe taking a look at Basic Usage of SimpleXML will also help: http://php.net/manual/en/simplexml.examples-basic.php

Chetan Ameta · Accepted Answer · 2016-01-12 11:33:00Z

Simplest solution is:

$xml = simplexml_load_string($str); $json = json_encode($xml); $array = json_decode($json,TRUE); print_r($array);

if you want to use advance php functionality then iterator is good option:

$xml = simplexml_load_string($str); $xmlIterator = new RecursiveIteratorIterator(new SimpleXMLIterator($str), RecursiveIteratorIterator::SELF_FIRST); foreach ($xmlIterator as $nodeName => $node) { if($node->attributes()) { echo "Node Name: <b>".$nodeName."</b><br />"; foreach ($node->attributes() as $attr => $value) { echo " Attribute: <b>" . $attr . "</b> - value: <b>".$value."</b><br />"; } } else{ echo "Node Name: <b>".$nodeName."</b> - value: <b>".$node->__toString()."</b><br />"; } }

In above iterator loop you can play with node and attributes.

You can also get the value of noe and attribute as @AlexAndrei mentioned in his answer.

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