Php/docs/function.curl-multi-exec
curl_multi_exec
(PHP 5, PHP 7)
curl_multi_exec — Run 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($ch1, CURLOPT_URL, "http://example.com/%22);curl_setopt($ch1, CURLOPT_HEADER, 0);curl_setopt($ch2, CURLOPT_URL, "http://www.php.net/%22);curl_setopt($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
- curl_multi_init() - Returns a new cURL multi handle
- curl_multi_select() - Wait for activity on any curl_multi connection
- curl_exec() - Perform a cURL session
