How to traverse xml in php - php

Question

I am using the following function
function file_get_contents_curl($url) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_AUTOREFERER, TRUE);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE);
$data = curl_exec($ch);
curl_close($ch);
return $data;
}
$myTestingUrl = file_get_contents_curl("myUrl");
After I run that function I have
$myTestingUrl =
<?xml version="1.0" encoding="UTF-8"?>
<map>
<entry key="keyName">
<entry key="ActionUrl">http://www.my_actionUrl.com/</entry>
</entry>
</map>
Can you please tell me how can I traverse $myTestingUrl to get the content of entry key "ActionUrl" (http://www.my_actionUrl.com/) in a variable in php?
Thank you!

Answer 1

Try
$xml = simplexml_load_string($myTestingUrl );
$items = $xml->xpath('/map/entry/entry[#key="ActionUrl"]/text()');
echo $items[0];

Answer 2

I prefer #air4x's XPath method but here it is without XPath - for the purpose of showing element and attribute access in SimpleXML:
Codepad demo
$obj = simplexml_load_string($myTestingUrl);
foreach($obj->entry as $entry)
{
if(isset($entry->entry))
{
foreach($entry->entry->attributes() as $key => $value)
{
if($key == 'key' && $value == 'ActionUrl')
{
echo 'ActionUrl is: ' . (string)$entry->entry;
break 1;
}
}
}
}