(PHP 5, PHP 7, PHP 8)
curl_multi_exec — Run the sub-connections of the current cURL handle
Processes each of the handles in the stack. This method can be called whether or not a handle needs to read or write data.
multi_handleA cURL multi handle returned by curl_multi_init().
still_runningA reference to a flag to tell whether the operations are still running.
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.
| Version | Description |
|---|---|
| 8.0.0 | multi_handle expects a CurlMultiHandle instance now; previously, a resource was expected. |
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();
$ch2 = curl_init();
// set URL and other appropriate options
curl_setopt($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
$mh = curl_multi_init();
//add the two handles
curl_multi_add_handle($mh,$ch1);
curl_multi_add_handle($mh,$ch2);
//execute the multi handle
do {
$status = curl_multi_exec($mh, $active);
if ($active) {
// Wait a short time for more activity
curl_multi_select($mh);
}
} while ($active && $status == CURLM_OK);
//close the handles
curl_multi_remove_handle($mh, $ch1);
curl_multi_remove_handle($mh, $ch2);
curl_multi_close($mh);
?>