Print XML node using XPath in PHP - php

Question

I'm trying to print complex XML's node values using XPath, I have attached an image for helping to see the path which I need to reach (red underline).
Original XML file can be found here
I was trying something like that:
<?php
$xml = simplexml_load_file('document.xml');
echo "<strong>Using direct method...</strong><br />";
$names = $xml->xpath('/w:document/w:body/w:tbl[0]/w:tr[1]/w:tc[0]/w:p/w:r/w:t');
foreach($names as $name) {
echo "Found $name<br />";
}
?>
This method I am using to replace this node:
$file = "document.xml";
$fp = fopen($file, "rb") or die("error");
$str = fread($fp, filesize($file));
$xml = new DOMDocument();
$xml->formatOutput = true;
$xml->preserveWhiteSpace = false;
$xml->loadXML($str) or die("Error");
$root = $xml->documentElement;
$fnode = $root->childNodes->item(0);
$ori = $fnode->childNodes->item(1);
$ori1 = $ori->childNodes->item(3);
$ori2 = $ori1->childNodes->item(1);
$ori3 = $ori2->childNodes->item(1);
$ori4 = $ori3->childNodes->item(1);
$ori5 = $ori4->childNodes->item(1);
$wt = $xml->createElement("w:t");
$wtText = $xml->createTextNode("".$name." ".$item."");
$wt->appendChild($wtText);
$ori4->replaceChild($wt,$ori5);
$xml->save("document.xml");

Answer 1

<?php
// Load XML
$doc = new DOMDocument();
$doc->load("document.xml");
// Use xpath to grab the node in question. I copied your xpath
// query as-is, assuming it was capable of targetting exactly
// the node you are trying to replace. If it returns more than
// one node, then only the first will be replaced.
// If this isn't what you want, I suggest modifying your xpath
// query to match exactly the single node you want to replace.
$xpath = new DOMXPath($doc);
$oldElement = $xpath->query("/w:document/w:body/w:tbl[0]/w:tr[1]/w:tc[0]/w:p/w:r/w:t")->item(0);
$newElement = $doc->createElementNS("http://schemas.openxmlformats.org/wordprocessingml/2006/main", "w:t", $name . " " . $item);
// Replace old element with new element
$oldElement->parentNode->replaceChild($newElement, $oldElement);
?>