Some PHP functions work on localhost, but not VPS

Question

these lines of code work fine on my localhost, but not on my VPS hosting:

$url = "http://gdata.youtube.com/feeds/api/videos/".$videoID;
$doc = new DOMDocument;
$doc->load($url);
$title = $doc->getElementsByTagName("title")->item(0)->nodeValue; 
$description = $doc->getElementsByTagName("description")->item(0)->nodeValue;

I can't figure out why they would work on localhost and not my vps which is set up like the exact same as localhost.

Your VPS either has a different version of PHP (potentially < version 5) or DomDocument extension was disabled when your PHP was compiled. — nickb
– nickb, Commented Feb 15, 2012 at 5:28
Please define "doesn't work". What does or doesn't it do? — deceze
– deceze ♦, Commented Feb 15, 2012 at 5:29
No error shows, it just stops everything beyond that part of the script from working. — Dylan Cross
– Dylan Cross, Commented Feb 15, 2012 at 5:32

deceze · Accepted Answer · 2012-02-15 06:15:14Z

2

http://199.192.203.137/phpinfo.php

DOM is explicitly disabled there: --disable-dom.

Either contact your host and ask them to enable DOM (unlikely), use a different host or rewrite your code using another DOM/XML library.

answered Feb 15, 2012 at 6:15

deceze♦

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3 Comments

Dylan Cross Over a year ago

What are the reasons why it would be disabled? What security things could be involved?

linuxeasy Over a year ago

@DylanCross not necessarily security issue, you should ask your hosting provider provide you with the DOM enabled php binary, or do it yourself.

deceze Over a year ago

@Dylan Some hosts just don't want to deal with too many dependencies and only support the bare minimum configuration, others do it because "that's what most people use", others have no good reasons at all. Talk to your host.

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