CODEWITHSUNDEEP
phpfacebookfacebook-graph-api
MrSanders
MrSanders

Reputation: 73

Facebook CurlException: 6: Couldn't resolve host 'graph.facebook.com'

Any one knows about this message ("CurlException: 6: Couldn't resolve host 'graph.facebook.com'") when you are trying to get "$facebook->getUser()" or $facebook->api('/me'); I really appreciated your help

Upvotes: 3

Views: 10688

Answers (5)

Jonno_FTW
Jonno_FTW

Reputation: 8809

I fixed this problem by setting FacebookCurlHttpClient.php line 104:

CURLOPT_IPRESOLVE => CURL_IPRESOLVE_V6

You should not have to edit the PHP-SDK code and just do this in your code:

$fb = new Facebook\Facebook([...]);
$fb->getClient()->getHttpClientHandler()->facebookCurl->setopt(CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V6);

But the FacebookHttpClientInterface only exposes the send method (and the facebookCurl member variable is protected), so that's not possible.

Upvotes: 0

Elad C.
Elad C.

Reputation: 111

Had the same case in my environment - restarting the virtual server / the ntpd service did not solve the issue

Only when I restarted the host machine did this error go away

Upvotes: 5

Eric Di Bari
Eric Di Bari

Reputation: 3867

I was receiving this error on my local dev server, and turns out that I needed to just reboot the operating system.

In my case, I'm using a bridged network connection. If the internet connection is changed or disabled at all on the host operating system while using the dev server, something gets altered with the DNS.

Upvotes: 2

Erik Kettenburg
Erik Kettenburg

Reputation: 134

Your host is most likely blocking outgoing connections. If you can ssh to the server try pinging graph.facebook.com and see if you can reach that server from your server. If you don't have ssh access to the server you could try using php exec or system to run the ping command.

It also may be due to your host not allowing urls to be opened within php or not allowing SSL.

Check this search for more ideas from the facebook dev forums: Google

Upvotes: 0

Igy
Igy

Reputation: 43816

Your server must not be able to resolve graph.facebook.com - is your production environment behind a Firewall or does it have misconfigured DNS?

Upvotes: 2

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