Doc #79318 [NEW]: curl_errno() is always 0 if there was an error while used with curl_multi()
From: work at christoph-kluge dot eu
Operating system:
PHP version: 7.3.15
Package: cURL related
Bug Type: Documentation Problem
Bug description:curl_errno() is always 0 if there was an error while used with curl_multi()
Description:
------------
I was wondering why curl_errno() returned a 0 while beeing using with a
curl_multi_init(). Not sure if this is a bug or if it's a documentation
issue so I stated it first as an documentation issue.
It seems that the error is not populated into the resource. Only when I
call curl_multi_info_read() then it gets populated into the resource.
References:
* https://bugs.php.net/bug.php?id=60660
* https://bugs.php.net/bug.php?id=33570
* https://bugs.php.net/bug.php?id=48304
Test script:
---------------
$handles = [];
$urls = [
'https://www.google.com?v1',
'https://wwwgooglecom?v2',
'https://www.google.com?v3',
];
$mh = curl_multi_init();
foreach ($urls as $key => $value) {
$handles[$key] = curl_init($value);
curl_setopt($handles[$key], CURLOPT_HEADER, true);
curl_setopt($handles[$key], CURLOPT_TIMEOUT, 10);
curl_setopt($handles[$key], CURLOPT_RETURNTRANSFER, true);
curl_multi_add_handle($mh, $handles[$key]);
}
do {
$status = curl_multi_exec($mh, $running);
curl_multi_select($mh);
} while ($running > 0 && $status === CURLM_OK);
// while ($result = curl_multi_info_read($mh)) {} // <<< uncomment this
will give you the expected result
foreach($handles as $ch) {
echo "Handle: " . curl_errno($ch) . PHP_EOL;
}
Expected result:
----------------
$ php test.php
Result: (0)
Result: (6) Could not resolve: wwwgooglecom (Domain name not found)
Result: (0)
Actual result:
--------------
$ php test.php
Result: (0)
Result: (0)
Result: (0)
--
Edit bug report at https://bugs.php.net/bug.php?id=79318&edit=1
--
Fix committed: https://bugs.php.net/fix.php?id=79318&r=fixed
Fixed in release: https://bugs.php.net/fix.php?id=79318&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=79318&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=79318&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=79318&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=79318&r=support
Expected behavior: https://bugs.php.net/fix.php?id=79318&r=notwrong
Not enough info: https://bugs.php.net/fix.php?id=79318&r=notenoughinfo
Submitted twice: https://bugs.php.net/fix.php?id=79318&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=79318&r=globals
PHP version support discontinued: https://bugs.php.net/fix.php?id=79318&r=phptooold
Daylight Savings: https://bugs.php.net/fix.php?id=79318&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=79318&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=79318&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=79318&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=79318&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=79318&r=mysqlcfg
Thread (2 messages)
- work at christoph-kluge dot eu