Getting cURL to work in PHP with HTTPS

Question

I have the following code which works in test regions which do not use SSL, but not on the production system, which does. The call itself works in a browser, but when running it via cURL, I get a 500 error.

$region = "https://api.mysite.com/";
$ch = curl_init();
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 2);
curl_setopt($ch, CURLOPT_CAINFO, dirname(__FILE__) . "/cacert.pem");
curl_setopt($ch, CURLOPT_FAILONERROR, true);
curl_setopt($ch, CURLOPT_URL, $region . $api);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($data));
$resp = curl_exec($ch);
$error = curl_error($ch);
curl_close($ch); 

return $resp;

If I don't put in CURL_OPT_FAILONERROR, then I don't get any error, just a blank response. I'm pretty sure this has to do with the fact that this is via https (as that is the only difference between my test region and my current region), but I can't figure out how to get this to work.

What do you see if you turn on verbose mode? curl_setopt($ch, CURLOPT_VERBOSE, 1); — g13n
– g13n, Commented May 25, 2012 at 22:23

user1423458 · Accepted Answer · 2012-06-01 10:25:49Z

1

To confirm the first issue is due to ssl or not, check with following

curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);

Does it work with that ?

answered Jun 1, 2012 at 10:25

user1423458

114 bronze badges

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

1 Comment

Elie Over a year ago

No. I tried that, and it still fails. Using file_get_contents instead for these calls.

Jonathan · Accepted Answer · 2012-05-25 22:28:13Z

0

From what you described, most likely the issue is with matching the certificate. Try:

curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0);

Obviously this isn't a "solution" to your problem, but it will help you in troubleshooting.

Best of luck!

answered May 25, 2012 at 22:28

Jonathan

9861 gold badge8 silver badges28 bronze badges

2 Comments

Jonathan Over a year ago

Respectfully, are you sure that the server's certificate is installed correctly? I just tried this on my server and it ran fine with SSL. Could you try running it without SSL and viewing the result?

Jonathan Over a year ago

One last idea, try posting the data that you would with the curl, if it returns a 500, it has something to do with the end script or the data you are providing it. Things such as a misconfigured .htaccess could also be causing a 500. Good luck!

David Mann · Accepted Answer · 2012-05-25 23:06:36Z

Try something like

<?php

error_reporting(E_ALL);

ini_set("display_errors", 1);

$data = array(
    CURLOPT_CAINFO => "/Users/davidmann/Documents/facebook.pem", 
    CURLOPT_SSL_VERIFYHOST => 1,
    CURLOPT_SSL_VERIFYPEER => true
);

echo var_dump(curl_get('https://www.facebook.com/', array('Refferer' => 'https://www.facebook.com/'), $data));

/** 
 * Send a GET requst using cURL 
 * @param string $url to request 
 * @param array $get values to send 
 * @param array $options for cURL 
 * @return string 
 * @author David from Code2Design.com
 * @link http://au.php.net/manual/en/function.curl-exec.php#98628
 */ 
function curl_get($url, array $get = NULL, array $options = array()) 
{    
    $defaults = array( 
        CURLOPT_URL => $url. (strpos($url, '?') === FALSE ? '?' : ''). http_build_query($get), 
        CURLOPT_HEADER => 1, 
        CURLOPT_RETURNTRANSFER => TRUE, 
        CURLOPT_TIMEOUT => 4 
    ); 

    $ch = curl_init(); 
    curl_setopt_array($ch, ($options + $defaults)); 
    if( ! $result = curl_exec($ch)) 
    { 
        trigger_error(curl_error($ch)); 
    } 
    curl_close($ch); 
    return $result; 
}

And then download the certificate from the website you are accessing (Open firefox, go to https://site.com, right click, view page info, security tab, certificate, select topmost cert, export as x.509 and then use update the CURLOPT_CAINFO

Hope this helps, Dave

Louis · Accepted Answer · 2013-11-06 09:51:15Z

0

Try to set CURLOPT_REFERER and CURLOPT_USERAGENT. I had the same problem and this solved it.

answered Nov 6, 2013 at 9:51

Louis

1

Collectives™ on Stack Overflow

Getting cURL to work in PHP with HTTPS

4 Answers 4

1 Comment

2 Comments

Comments

Comments

Hot Network Questions

Collectives™ on Stack Overflow

4 Answers 4

1 Comment

2 Comments

Comments

Comments

Related