Parsing XML feed in PHP

Question

<?php

$url='http://bart.gov/dev/eta/bart_eta.xml';

$c = curl_init($url);

curl_setopt($c, CURLOPT_MUTE, 1);
curl_setopt($c, CURLOPT_RETURNTRANSFER, 1);

$rawXML = curl_exec($c);

curl_close($c);

$fixedupXML = htmlspecialchars($rawXML);

foreach($fixedupXML->eta-> as $eta) {
  echo $eta->destination;
}

?>

As a way to get introduced to PHP, I've decided to parse BART's XML feed and display it on my webpage. I managed (also via this site) to be able to fetch the data and preserve the XML tags. However, when I try to output the XML data, using what I found to be the simplest method, nothing happens.

foreach($fixedupXML->eta as $eta){
  echo $eta->destination;
}

Am I not getting the nested elements right in the foreach loop?

Here is the BART XML feed http://www.bart.gov/dev/eta/bart_eta.xml Thanks!

What does this mean: $fixedupXML->eta-> ? it seems there is an additional -> or am I missing something? — Tamer Shlash
– Tamer Shlash, Commented Jan 25, 2012 at 0:51

Francis Lewis · Accepted Answer · 2012-01-25 00:54:38Z

7

You may want to look at simplexml, which is a fantastic and really simple way to work with XML. Here's a great example:

$xml = simplexml_load_file('http://bart.gov/dev/eta/bart_eta.xml');

Then you can run a print_r on $xml to see it's contents:

print_r($xml);

And you should be able to work with it from there :)

If you still need to use curl to get the feed data for some reason, you can feed the XML into simplexml like this:

$xml = simplexml_load_string($rawXML);

answered Jan 25, 2012 at 0:54

Francis Lewis

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