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Bug #48304 curl_errno return 0 on error
Submitted: 2009-05-16 17:07 UTC Modified: 2009-05-19 14:22 UTC
Votes:3
Avg. Score:5.0 ± 0.0
Reproduced:3 of 3 (100.0%)
Same Version:0 (0.0%)
Same OS:0 (0.0%)
From: dypa at bk dot ru Assigned:
Status: Not a bug Package: cURL related
PHP Version: 5.2.9 OS: linux
Private report: No CVE-ID: None
 [2009-05-16 17:07 UTC] dypa at bk dot ru
Description:
------------
when i use curl_multi curl_errno returns 0 on errors
see:
user@localhost:/$php code.php

this bug related to: http://bugs.php.net/bug.php?id=33570

Reproduce code:
---------------
<?php
// create both cURL resources
$ch1 = curl_init();
$ch2 = curl_init();

// set URL and other appropriate options
curl_setopt($ch1, CURLOPT_URL, "http://404.php.net");
curl_setopt($ch1, CURLOPT_HEADER, 0);
curl_setopt($ch1, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch2, CURLOPT_URL, "http://www.php.net/");
curl_setopt($ch2, CURLOPT_HEADER, 0);
curl_setopt($ch2, CURLOPT_RETURNTRANSFER, 1);

//create the multiple cURL handle
$mh = curl_multi_init();

//add the two handles
curl_multi_add_handle($mh,$ch1);
curl_multi_add_handle($mh,$ch2);

$running=null;
//execute the handles
do {
    curl_multi_exec($mh,$running);
} while ($running > 0);

var_dump($ch1);
var_dump($ch2);

var_dump(curl_errno($ch1));
var_dump(curl_errno($ch2));

var_dump(curl_error($ch1));
var_dump(curl_error($ch2));

//close the handles
curl_multi_remove_handle($mh, $ch1);
curl_multi_remove_handle($mh, $ch2);
curl_multi_close($mh);


Expected result:
----------------
resource(4) of type (curl)
resource(5) of type (curl)
int(6) //CURLE_COULDNT_RESOLVE_HOST (6)
int(0)
string(35) "Couldn't resolve host '404.php.net'"
string(0) ""


Actual result:
--------------
resource(4) of type (curl)
resource(5) of type (curl)
int(0)
int(0)
string(35) "Couldn't resolve host '404.php.net'"
string(0) ""


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 [2009-05-16 19:27 UTC] knockk at mail dot ru
same problem on windows xp php 5.2.9-1
 [2009-05-16 23:04 UTC] jani@php.net
Please try using this CVS snapshot:

  http://snaps.php.net/php5.2-latest.tar.gz
 
For Windows:

  http://windows.php.net/snapshots/


 [2009-05-18 11:39 UTC] dypa at bk dot ru
C:\php>php test.php
resource(4) of type (curl)
resource(5) of type (curl)
int(0)
int(0)
string(51) "Could not resolve host: 404.php.net; Host not found"
string(0) ""

C:\php>php -v
PHP 5.2.10-dev (cli) (built: May 18 2009 11:46:45)
Copyright (c) 1997-2009 The PHP Group
Zend Engine v2.2.0, Copyright (c) 1998-2009 Zend Technologies
 [2009-05-19 09:55 UTC] dypa at bk dot ru
user@ubuntu:/tmp$ uname -a
Linux ubuntu 2.6.28-11-generic #42-Ubuntu SMP Fri Apr 17 01:57:59 UTC 2009 i686 GNU/Linux

user@ubuntu:/tmp/curl-7.19.5$ ./configure
user@ubuntu:/tmp/php5.2-200905190830$ ./configure --disable-all --with-curl

user@ubuntu:/tmp$ php -v
PHP 5.2.10-dev (cli) (built: May 19 2009 12:49:30) 
Copyright (c) 1997-2009 The PHP Group
Zend Engine v2.2.0, Copyright (c) 1998-2009 Zend Technologies

user@ubuntu:/tmp$ php -i
curl
cURL support => enabled
cURL Information => libcurl/7.19.5

user@ubuntu:/tmp$ php test.php
resource(4) of type (curl)
resource(5) of type (curl)
int(0)
int(0)
string(35) "Couldn't resolve host '404.php.net'"
string(0) ""
 [2009-05-19 14:22 UTC] jani@php.net
Actually you should be using this: http://php.net/curl_multi_info_read
The multi API is "special" and the easy API functions don't always work fine in every case. 
 
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