So I know the exact path the node I would be attempting to remove. I am iterating through several xml files to update some of the content. In order to add some of the new content in, I must first delete the content that already exists.
Here is the code I attempted to use, but I'm receiving a Parse error: syntax error, unexpected T_UNSET
public function hint_insert() {
foreach($this->hints as $key => $value) {
$filename = $this->get_qid_filename($key);
echo "$key - $filename - $value[0]<br>";
//insert hint within right node using simplexml
$xml = simplexml_load_file($filename);
foreach ($xml->PrintQuestion as $PrintQuestion) {
if (unset($xml->PrintQuestion->content->multichoice->feedback->hint->Passage)) {
$xml->PrintQuestion->content->multichoice->feedback->hint->addChild('Passage', $value[0]);
} else {
$xml->PrintQuestion->content->multichoice->feedback->hint->addChild('Passage', $value[0]);
}
}
}