curl_multi_exec

(PHP 5, PHP 7, PHP 8)

curl_multi_execRun the sub-connections of the current cURL handle

Description

curl_multi_exec(CurlMultiHandle $multi_handle, int &$still_running): int

Processes each of the handles in the stack. This method can be called whether or not a handle needs to read or write data.

Parameters

multi_handle

A cURL multi handle returned by curl_multi_init().

still_running

A reference to a flag to tell whether the operations are still running.

Return Values

A cURL code defined in the cURL Predefined Constants.

Note:

This only returns errors regarding the whole multi stack. There might still have occurred problems on individual transfers even when this function returns CURLM_OK.

Changelog

Version Description
8.0.0 multi_handle expects a CurlMultiHandle instance now; previously, a resource was expected.

Examples

Example #1 curl_multi_exec() example

This example will create two cURL handles, add them to a multi handle, and process them asynchronously.

<?php// create both cURL resources$ch1 = curl_init();$ch2 = curl_init();// set URL and other appropriate optionscurl_setopt($ch1, CURLOPT_URL, "http://example.com/");curl_setopt($ch1, CURLOPT_HEADER, 0);curl_setopt($ch2, CURLOPT_URL, "http://www.php.net/");curl_setopt($ch2, CURLOPT_HEADER, 0);//create the multiple cURL handle$mh = curl_multi_init();//add the two handlescurl_multi_add_handle($mh,$ch1);curl_multi_add_handle($mh,$ch2);//execute the multi handledo {    $status = curl_multi_exec($mh, $active);    if ($active) {        // Wait a short time for more activity        curl_multi_select($mh);    }} while ($active && $status == CURLM_OK);//close the handlescurl_multi_remove_handle($mh, $ch1);curl_multi_remove_handle($mh, $ch2);curl_multi_close($mh);?>

See Also