PHP SimpleXML select attributes

Question

I have an XML feed that looks like this:

<?xml version="1.0" encoding="UTF-8"?> <productFeed version="1.0" timestamp="20100910:04:06:55"> <product id="196"> <name>Lorem</name> <price>190.00</price> <description>Lorem Ipsum</description> <productURL> http://www.example.com</productURL> <imageURL> http://www.example.com/lorem.jpg </imageURL> <additional> <field name="country" value="IT" /> <field name="region" value="Rome" /> <field name="city" value="Rome" /> </additional> <categories> <category name="foobar" /> </categories> </product> </productFeed>

I'm trying to print out the category attribute, among other things with this script:

<?php $url = 'lorem.xml'; $xml = simplexml_load_file($url); $expr = "/productFeed//product/additional/field[@value='Rome']/parent::*/parent::*"; $result = $xml->xpath($expr); foreach($result as $item) { echo $item->name; echo $item->imageURL; echo $item->description; echo $item->price; echo $item->category->attributes()->name; }

This produces a:

Warning: main() [function.main]: Node no longer exists

error although the FireXPath Firebug plugin tells me I'm correctly selecting the attributes too.

tdtje · Accepted Answer · 2010-09-15 15:50:18Z

You have a typo!

Its:

echo $item->categories->category->attributes()->name;

Not:

echo $item->category->attributes()->name;

For everything:

 foreach($result as $item) { echo $item->name; echo $item->imageURL; echo $item->description; echo $item->price; echo $item->category->attributes()->name; foreach($item->additional->field as $field) { echo $field["name"]; echo $field["value"]; } }

Good Luck

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