There is a error in parsing the rss from stackoverflow.com. using SimpleXML in PHP

Question

I was trying to parse the rss of the tag PHP, from http://stackoverflow.com and tried to use something other than DOM Model, So I looked into SimpleXML. THis is my code:

<?php
    error_reporting(-1);
    $xml = file_get_contents('https://stackoverflow.com/feeds/tag/php');
    $loaded = simplexml_load_string($xml) or die("There is a problem");
    $str1 = $loaded["entry"]["entry"][0]->title;
    echo $str1;
?>

But nothing is displayed on the screen, and also no error is displayed! The sample data from https://stackoverflow.com/feeds/tag/php can be found at http://gourabt2.cloudapp.net/sample-data/sample_data.xml

Any Help would be very much appreciated! Thanks! Cheers!

Did you consider trying a var_dump($loaded)? What does it contain? — BurninLeo
– BurninLeo, Commented May 2, 2015 at 21:01
The var_dump can be fount at gourabt2.cloudapp.net/sample-data/loaded.json — Ikari
– Ikari, Commented May 2, 2015 at 21:07

hakre · Accepted Answer · 2015-05-02 21:07:28Z

1

You use array-access in SimpleXML to access attributes so:

$loaded["entry"]

returns the attribute named "entry" from the document element.

use arrow-access to get the element named "entry" instead:

$loaded->entry

this returns the element named "entry".

Additionally take care with namespaces. Parsing a feed with SimpleXML has been outlined already in existing Q&A material, please relate to it.

answered May 2, 2015 at 21:07

hakre

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Comments

chris85 · Accepted Answer · 2015-05-02 21:03:12Z

Try this out.

<?php
    $xml = file_get_contents('http://stackoverflow.com/feeds/tag/php');
    $loaded = simplexml_load_string($xml) or die("There is a problem");
    foreach($loaded->entry as $post) {
       echo $post->title . "\n";
    }

Output:

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Jonathan · Accepted Answer · 2015-05-02 21:06:10Z

0

That's because you have the wrong path. Here is the correction.

(string)$loaded->entry->title;

answered May 2, 2015 at 21:06

Jonathan

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