Bug #52558 [Com]: multi curl fails to return response, where curl does.
Edit report at http://bugs.php.net/bug.php?id=52558&edit=1
ID: 52558
Comment by: will at willolbrys dot com
Reported by: malaimo at sesda2 dot com
Summary: multi curl fails to return response, where curl
does.
Status: Open
Type: Bug
Package: cURL related
Operating System: linux 2.6.32-24 libcurl 7.21.0
PHP Version: 5.3.3
Block user comment: N
Private report: N
New Comment:
I think I encountered the same bug here:
http://stackoverflow.com/questions/4780741/php-curl-multi-getcontent-partial-body-received/5429110#5429110
reprinted for simplicity:
I encountered this bug while using the rolling-curl multicurl lib, but
the underlying problem seems to be in php itself. Here's my php -v:
PHP 5.3.3-1ubuntu9.3 with Suhosin-Patch (cli) (built: Jan 12 2011
16:07:38)
Copyright (c) 1997-2009 The PHP Group
Zend Engine v2.3.0, Copyright (c) 1998-2010 Zend Technologies
Under some circumstances (in my case CURLOPT_TIMEOUT was being maxed)
curl_error and curl_errno would not properly report an error in the
curl. I had to use the 'result' key from the array returned by
curl_multi_info_read. That result code gave me the actual error number
when the curl_err* functions reported everything as normal.
Previous Comments:
------------------------------------------------------------------------
[2010-08-06 15:09:19] malaimo at sesda2 dot com
Description:
------------
When using both curl and multi_curl i get a curl_errno of 0 for each
handle while an curl_error results a string error.
When using multi_curl the error string is: Failed connect to
ftp.nmh.ac.uk:21; Operation now in progress
When using curl the error string is: couldn't connect to host
Using multi_curl results in a null body returned with
curl_multi_getcontent
Using curl yields the data of the file when using curl_exec
Test script:
---------------
two scripts are below to reproduce.
# multi_curl method
<?php
$curls = array();
$cmh = curl_multi_init();
$dlFiles = array(
'ftp://ftp.nmh.ac.uk/wdc/obsdata/hourval/single_year/1914/sod1914.wdc',
'http://spc.igpp.ucla.edu/uclamag/ffi/lal/B99300_LAL.ffd',
'ftp://ftp.nmh.ac.uk/wdc/obsdata/hourval/single_year/1922/hua1922.wdc',
'http://vmo.igpp.ucla.edu/data1/Weygand/ProcessedSolarWindGSE/ACE/mag/2000/acemag200001.dat'
);
foreach ($dlFiles as $x => $file) {
$curls[$x] = curl_init();
curl_setopt($curls[$x], CURLOPT_URL, $file);
curl_setopt($curls[$x], CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curls[$x], CURLOPT_FOLLOWLOCATION, 1);
curl_multi_add_handle($cmh, $curls[$x]);
}
$active = null;
do {
$mrc = curl_multi_exec($cmh, $active);
} while ($mrc == CURLM_CALL_MULTI_PERFORM);
while ($active && $mrc == CURLM_OK) {
if (curl_multi_select($cmh) != -1) {
do {
$mrc = curl_multi_exec($cmh, $active);
} while ($mrc == CURLM_CALL_MULTI_PERFORM);
}
}
foreach ($dlFiles as $x => $file) {
var_dump(substr(curl_multi_getcontent($curls[$x]), 0, 10),
curl_errno($curls[$x]), curl_error($curls[$x]));
curl_multi_remove_handle($cmh, $curls[$x]);
curl_close($curls[$x]);
}
curl_multi_close($cmh);
?>
# curl method
<?php
$dlFiles = array(
'ftp://ftp.nmh.ac.uk/wdc/obsdata/hourval/single_year/1914/sod1914.wdc',
'http://spc.igpp.ucla.edu/uclamag/ffi/lal/B99300_LAL.ffd',
'ftp://ftp.nmh.ac.uk/wdc/obsdata/hourval/single_year/1922/hua1922.wdc',
'http://vmo.igpp.ucla.edu/data1/Weygand/ProcessedSolarWindGSE/ACE/mag/2000/acemag200001.dat'
);
foreach ($dlFiles as $x => $file) {
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $file);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
var_dump(substr(curl_exec($ch), 0, 10), curl_errno($ch),
curl_error($ch));
curl_close($ch);
}
?>
Expected result:
----------------
no errors at all and multi_curl letting me get the contents of the curl.
Actual result:
--------------
multi_curl
bool(false)
int(0)
string(61) "Failed connect to ftp.nmh.ac.uk:21; Operation now in
progress"
string(10) "����
int(0)
string(0) ""
bool(false)
int(0)
string(61) "Failed connect to ftp.nmh.ac.uk:21; Operation now in
progress"
string(10) "01 01 2000"
int(0)
string(0) ""
for curl
string(10) "SOD1401X01"
int(0)
string(24) "couldn't connect to host"
string(10) "����
int(0)
string(0) ""
string(10) "HUA22 1D 1"
int(0)
string(24) "couldn't connect to host"
string(10) "01 01 2000"
int(0)
string(0) ""
------------------------------------------------------------------------
--
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