getting xml from URL into variable

Question

I am trying to get an xml feed from a url

http://api.eve-central.com/api/marketstat?typeid=1230&regionlimit=10000002

but seem to be failing miserably. I have tried

Yet none of these seem to echo a nice XML feed when I either echo or print_r. The end goal is to eventually parse this data but getting it into a variable would sure be a nice start.

I have attached my code below. This is contained within a loop and $typeID does in fact give the correct ID as seen above

$url = 'http://api.eve-central.com/api/marketstat?typeid='.$typeID.'&regionlimit=10000002';
echo $url."<br />";
$xml = new SimpleXMLElement($url);
print_r($xml);

I should state that the other strange thing I am seeing is that when I echo $url, i get

http://api.eve-central.com/api/marketstat?typeid=1230®ionlimit=10000002

the &reg is the registered trademark symbol. I am unsure if this is "feature" in my browser, or a "feature" in my code

Which browser are you using? I ask because I'm just wondering about the (side-issue) with the registered trademark symbol. — hakre
– hakre, Commented Jan 1, 2013 at 11:18

Nir Alfasi · Accepted Answer · 2012-12-31 21:26:58Z

10

Try the following:

<?php
$typeID = 1230;
// set feed URL
$url = 'http://api.eve-central.com/api/marketstat?typeid='.$typeID.'&regionlimit=10000002';
echo $url."<br />";
// read feed into SimpleXML object
$sxml = simplexml_load_file($url);

// then you can do
var_dump($sxml);

// And now you'll be able to call `$sxml->marketstat->type->buy->volume` as well as other properties.
echo $sxml->marketstat->type->buy->volume;

// And if you want to fetch multiple IDs:
foreach($sxml->marketstat->type as $type){
    echo $type->buy->volume . "<br>";
}
?>

edited Dec 31, 2012 at 21:26

answered Dec 31, 2012 at 20:53

Nir Alfasi

53.6k11 gold badges94 silver badges138 bronze badges

Sign up to request clarification or add additional context in comments.

8 Comments

mhopkins321 Over a year ago

I attempted $volume = $sxml->buy->volume; echo $volume however nothing was returned, any idea why?

Nir Alfasi Over a year ago

@mhopkins321 First make sure that the $typeID is defined, and second you should call: $sxml->marketstat->type->buy->volume (answer fixed)

mhopkins321 Over a year ago

somewhat new to php/xml (obviously) if my url was http://api.eve-central.com/api/marketstat?typeid=1230&typeid=1231&regionlimit=10000002 where there would be two different type id's, where in the line of -> would the id go in?

Nir Alfasi Over a year ago

@mhopkins321 you can't pass two $typeID's - one of them will run over the other!

Nir Alfasi Over a year ago

hmmm... that's not a normal HTTP behavior... Let me check.

|

Supericy · Accepted Answer · 2012-12-31 21:05:43Z

4

You need to fetch the data from the URL in order to make an XML object.

$url = 'http://api.eve-central.com/api/marketstat?typeid='.$typeID.'&regionlimit=10000002';

$xml = new SimpleXMLElement(file_get_contents($url));

// pre tags to format nicely
echo '<pre>';
print_r($xml);
echo '</pre>';

edited Dec 31, 2012 at 21:05

answered Dec 31, 2012 at 20:57

Supericy

5,8911 gold badge23 silver badges25 bronze badges

2 Comments

mhopkins321 Over a year ago

this returns some data that i'm not quite familiar with (though it's probably what truly raw xml looks like?). If wanted to call the node at $xml->sell->average. what would I set my variable to? I attempted $sell = $xml->sell->average however that didn't seem to work

Supericy Over a year ago

Sorry, changing var_dump to print_r will give you a more friendly result. To access the sell average, you would want to do $xml->marketstat->type->sell->average

Collectives™ on Stack Overflow

getting xml from URL into variable

2 Answers 2

8 Comments

2 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

8 Comments

2 Comments

Your Answer

Sign up or log in

Post as a guest

Related