How to capture curl_errno in curl_multi mode? - php

Question

For some reason curl_errno($value) always returns 0 instead of 6 when I try url like stkovrflow.com. This is a non existing domain. So curl supposed to return 6. But i'm getting 0.
Can someone tell me what's wrong with my code?
This is how I check curl error
if (curl_errno($value) !== 0)
{
$handles[$key]['error_code'] = curl_errno($value);
}
Here is my full code
<?php
protected function curl($url)
{
$mh = curl_multi_init();
$handles = array();
foreach ($url as $link)
{
$handles[$link] = curl_init($link);
curl_setopt($handles[$link], CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($handles[$link], CURLOPT_HEADER, true);
curl_setopt($handles[$link], CURLOPT_RETURNTRANSFER, true);
curl_setopt($handles[$link],CURLOPT_FAILONERROR,true);
curl_setopt($handles[$link], CURLOPT_FOLLOWLOCATION, $this->curlFollowLocation);
curl_setopt($handles[$link], CURLOPT_MAXREDIRS, $this->curlMaxRedirects);
curl_setopt($handles[$link], CURLOPT_TIMEOUT, $this->curlTimeout);
curl_setopt($handles[$link], CURLOPT_USERAGENT, $this->curlUserAgent);
curl_setopt($handles[$link], CURLOPT_AUTOREFERER, true);
curl_multi_add_handle($mh, $handles[$link]);
}
$running = null;
do {
curl_multi_exec($mh, $running);
usleep(200000);
} while ($running > 0);
foreach ($handles as $key => $value)
{
$handles[$key] = false;
$handles[$key]['error_code'] = false;
if (curl_errno($value) !== 0)
{
$handles[$key]['error_code'] = curl_errno($value);
} else {
$response = curl_multi_getcontent($value);
$httpCode = curl_getinfo($value, CURLINFO_HTTP_CODE);
if ( $httpCode != 200 ) {
$handles[$key]['error_code'] = $httpCode;
} else {
$handles[$key]['html'] = $response;
}
}
curl_multi_remove_handle($mh, $value);
curl_close($value);
}
curl_multi_close($mh);
return $handles;
}
Update:
Looks like curl_errno does not work (see bug report) in curl multi mode. Instead we should use curl_multi_info_read. When I use curl_multi_info_read like this
$e_code = curl_multi_info_read($mh);
var_dump($e_code);
this is my var_dump output.
array (size=3)
'msg' => int 1
'result' => int 6
'handle' => resource(7, curl)
As you can it returns 6 correctly. But php doc says
The data the returned resource points to will not survive calling curl_multi_remove_handle().
Unfortunately my script depends on curl_multi_remove_handle(). Any solution?
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