Question

I have a problem with php,
If I implement this code below then nothing will be happen.

$filename = "/opt/olat/olatdata/bcroot/course/85235053647606/runstructure.xml";
if (file_exists($filename)) {
 $xml = simplexml_load_file($filename, 'SimpleXMLElement', LIBXML_NOCDATA);
 // $xpath = new DOMXPath($filename);
}
$doc = new DOMDocument();
$doc->loadXML($xml);
$xpath = new DOMXpath($doc);

$res = $xpath->query('/org.olat.course.Structure/rootNode/children/org.olat.course.nodes.STCourseNode/shortTitle');

foreach ($res as $entry) {
    echo "{$entry->nodeValue}<br/>";
}

If I change the contents of $xml in the content with the content of the $filename

$xml = '<org.olat.course.Structure><rootNode class="org.olat.course.nodes.STCourseNode"> ... ';

then it works, so i think that there is something wrong with loading methode of the xml file,
I’ve also tried to load the xml file as a Domdocument but it won’t work neither.
And in both cases, it does work if I collect xml data via xml
for example this works

echo $Course_name = $xml->rootNode->longTitle;

Answer 1

loadXML takes a string as input, not the return value of simplexml_load_file. Just use file_get_contents to get the (full) contents of a file as string