PHP cURL request to same server returning false

Question

I've searched high and low for the answer to this question but cant find anything...

We've got a single server and on it we've got a PHP service with an API.

We've recently written an PHP app which interacts with the API. When it goes live the API and the app will be on the same server.

However, when they are on the same server the cURL requests from the app to the API always return false. I'm sure this must be something to do with the way that the request is being routed by the server. Is there any way to make this work properly?

$url = 'http://api.some_address_on_the_same_server.com';
$postdata = array(...);

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $postdata);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

$result = curl_exec($ch); // $result is always false when on the same server for some reason
curl_close($ch);

are you using sessions ?

Shankar Narayana Damodaran
– Shankar Narayana Damodaran

2013-06-27 13:41:08 +00:00
Commented Jun 27, 2013 at 13:41 — Shankar Narayana Damodaran
– Shankar Narayana Damodaran, Commented Jun 27, 2013 at 13:41
Hi Shankar, yes I am.

jonadams51
– jonadams51

2013-06-27 13:48:45 +00:00
Commented Jun 27, 2013 at 13:48 — jonadams51
– jonadams51, Commented Jun 27, 2013 at 13:48

Shankar Narayana Damodaran · Accepted Answer · 2013-06-28 08:33:08Z

5

Must be related to locking session situations. Try this way.

<?php
$url = 'http://api.some_address_on_the_same_server.com';
$postdata = array(...);

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $postdata);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

session_write_close();

$result = curl_exec($ch); // $result is always false when on the same server for some reason
curl_close($ch);

session_start();
?>

EDIT :

Have you added an exception in your windows host file ? /windows/system32/drivers/etc/hosts

like

127.0.0.1 yourdomain.com

For more information. Check out this

edited Jun 28, 2013 at 8:33

answered Jun 27, 2013 at 14:01

Shankar Narayana Damodaran

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2 Comments

jonadams51 Over a year ago

Thanks but it still returns false.

Dmitry Over a year ago

The same issue. Specify domain in /etc/hosts and curl_setopt($ch,CURLOPT_SSL_VERIFYHOST, false); curl_setopt($ch,CURLOPT_SSL_VERIFYPEER, false); helped me

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