Anything wrong with my cURL code (http status of 0)?

Question

Consistently getting a status of 0 even though if I copy and paste the url sent into my browser, I get a json object right back

<?php


$mainUrl = "https://api.xxxx.com/?";
$co = "xxxxx";
$pa = "xxxx";
$par = "xxxx";
$part= "xxxx";
$partn = "xxxx";
$us= "xxx";
$fields_string;
$fields = array(
            'co'=>urlencode($co),
            'pa'=>urlencode($pa),
            'par'=>urlencode($par),
            'part'=>urlencode($part),
            'partn'=>urlencode($partn),
            'us'=>urlencode($us)
            );

foreach($fields as $key=>$value) { $fields_string .= $key . '=' . $value . '&' ;}

$fields_string = rtrim($fields_string, "&");
$fields_string = "?" . $fields_string;

$url = "https://api.xxxxx.com/" . $fields_string;

$request =  $url; 

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
curl_setopt($ch, CURLOPT_TIMEOUT,'3');
$content = trim(curl_exec($ch));
$http_status = curl_getinfo($ch, CURLINFO_HTTP_CODE);

curl_close($ch);
print $url;
print $http_status;
print $content; 



?>

just an unrelated side note: PHP has a very handy `http_build_query` function. http://php.net/manual/en/function.http-build-query.php — nico, Dec 31 '10 at 15:53
Yup, just realized that checking the error would be helpful. — Ilya, Dec 31 '10 at 16:13

score 24 · Accepted Answer · answered Dec 31 '10 at 16:13

24

Realized that I was having SSL issues. Simply set CURLOPT_SSL_VERIFYPEER and CURLOPT_SSL_VERIFYHOST to false. Works.

answered Dec 31 '10 at 16:13

Ilya

1,215
1
14
25

7

If you wish to use SSL, you can add the CURLOPT_CAINFO flag and point to a certificate. Like 'curl_setopt($curl, CURLOPT_CAINFO, BASE_DIR . '/certs/cacert.pem');' – joelcox Dec 31 '10 at 18:55
1

@Xoc: +1 from me for pointing out that a secure connection is an option here. – Benjamin Seiller Feb 03 '11 at 23:23

score 17 · Answer 2 · answered Aug 15 '11 at 23:05

17

FYI, you can also get a status code of 0 if the curl connection times out before the remote server returns data. In that case you need to set curl time out options to avoid that situation. Just posting this for anyone else having status 0 problems.

answered Aug 15 '11 at 23:05

Henry

171
1
3

3

Details on how to set the curl time out are here http://stackoverflow.com/a/11066378/243233 – Jus12 Mar 01 '13 at 12:29

score 9 · Answer 3 · answered Dec 28 '12 at 23:42

9

I had the same problem, You MUST run the curl_exec($ch) command before you run the curl_getinfo($ch) command.

answered Dec 28 '12 at 23:42

Folding Circles

454
2
5
13

2

Perfect! This was the problem for me! – Magnus Jun 06 '15 at 09:59

score 4 · Answer 4 · answered Dec 20 '13 at 05:33

so try this you will get positive results i have added CURLOPT_SSL_VERIFYPEER and CURLOPT_SSL_VERIFYHOST to false

<?php


$mainUrl = "https://api.xxxx.com/?";
$co = "xxxxx";
$pa = "xxxx";
$par = "xxxx";
$part= "xxxx";
$partn = "xxxx";
$us= "xxx";
$fields_string;
$fields = array(
            'co'=>urlencode($co),
            'pa'=>urlencode($pa),
            'par'=>urlencode($par),
            'part'=>urlencode($part),
            'partn'=>urlencode($partn),
            'us'=>urlencode($us)
            );

foreach($fields as $key=>$value) { $fields_string .= $key . '=' . $value . '&' ;}

$fields_string = rtrim($fields_string, "&");
$fields_string = "?" . $fields_string;

$url = "https://api.xxxxx.com/" . $fields_string;

$request =  $url; 

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);
curl_setopt($ch, CURLOPT_TIMEOUT,'3');
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER,false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST,false);
$content = trim(curl_exec($ch));
$http_status = curl_getinfo($ch, CURLINFO_HTTP_CODE);

curl_close($ch);
print $url;
print $http_status;
print $content; 



?>

score 3 · Answer 5 · answered Dec 31 '10 at 16:15

3

You should always set the option CURLOPT_VERBOSE when you are debugging for curl. Your timeout value looks very low.

answered Dec 31 '10 at 16:15

koan

3,596
2
25
35

Anything wrong with my cURL code (http status of 0)?

5 Answers5

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