all tasks

Task/XML-XPath/PHP/xml-xpath.php

@@ -0,0 +1,30 @@
+<?php
+//PHP5 only example due to changes in XML extensions between version 4 and 5 (Tested on PHP5.2.0)
+$doc = DOMDocument::loadXML('<inventory title="OmniCorp Store #45x10^3">...</inventory>');
+//Load from file instead with $doc = DOMDocument::load('filename');
+$xpath = new DOMXPath($doc);
+/*
+    1st Task: Retrieve the first "item" element
+*/
+$nodelist = $xpath->query('//item');
+$result = $nodelist->item(0);
+/*
+    2nd task: Perform an action on each "price" element (print it out)
+*/
+$nodelist = $xpath->query('//price');
+for($i = 0; $i < $nodelist->length; $i++)
+{
+  //print each price element in the DOMNodeList instance, $nodelist, as text/xml followed by a newline
+  print $doc->saveXML($nodelist->item($i))."\n";
+}
+/*
+    3rd Task: Get an array of all the "name" elements
+*/
+$nodelist = $xpath->query('//name');
+//our array to hold all the name elements, though in practice you'd probably not need to do this and simply use the DOMNodeList
+$result = array();
+//a different way of iterating through the DOMNodeList
+foreach($nodelist as $node)
+{
+  $result[] = $node;
+}