PHP: Hypertext Preprocessor (original) (raw)

curl_multi_init

(PHP 5, PHP 7, PHP 8)

curl_multi_init — Returns a new cURL multi handle

Description

Parameters

This function has no parameters.

Return Values

Returns a cURL multi handle.

Changelog

Version Description
8.0.0 On success, this function returns a CurlMultiHandle instance now; previously, a resource was returned.

See Also

Found A Problem?

w_haigh at yahoo dot com

9 years ago

`Here's an easier to follow example, From : http://arguments.callee.info/2010/02/21/multiple-curl-requests-with-php/

// build the individual requests, but do not execute them
$ch_1 = curl_init('http://webservice.one.com/');
$ch_2 = curl_init('http://webservice.two.com/');
curl_setopt($ch_1, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch_2, CURLOPT_RETURNTRANSFER, true);

// build the multi-curl handle, adding both $ch
$mh = curl_multi_init();
curl_multi_add_handle($mh, $ch_1);
curl_multi_add_handle($mh, $ch_2);

// execute all queries simultaneously, and continue when all are complete
$running = null;
do {
curl_multi_exec($mh, $running);
} while ($running);

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

// all of our requests are done, we can now access the results response1=curlmultigetcontent(response_1 = curl_multi_getcontent(response1=curlmultigetcontent(ch_1); response2=curlmultigetcontent(response_2 = curl_multi_getcontent(response2=curlmultigetcontent(ch_2);
echo "$response_1 $response_2"; // output results

`

xxavalanchexx at gmail dot com

10 years ago

`According to https://bugs.php.net/bug.php?id=61141:

On Windows setups using libcurl version 7.24 or later (which seems to correspond to PHP 5.3.10 or later), you may find that curl_multi_select() always returns -1, causing the example code in the documentation to timeout. This is, apparently, not strictly a bug: according to the libcurl documentation, you should add your own sleep if curl_multi_select returns -1.

Therefore, in order to work correctly on Windows for PHP 5.3.10+, the second loop in the example code should look something like the following:

mrc=curlmultiexec(mrc = curl_multi_exec(mrc=curlmultiexec(mh, $active); } while ($mrc == CURLM_CALL_MULTI_PERFORM); } ?>

`

Adam Richardson

7 years ago

`One of the URLs used in the first example on this page (lxr.php.net) now gives a proxy error.

If you're using this first script example, replace with a different URL.

`