(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_handle
A 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 curl handles for a list of URLs, add them to a multi handle, and process them asynchronously.
<?php
$urls = [
"https://www.php.net/",
"https://www.example.com/",
];
$mh = curl_multi_init();
$map = new WeakMap();
foreach ($urls as $url) {
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_multi_add_handle($mh, $ch);
$map[$ch] = $url;
}
do {
$status = curl_multi_exec($mh, $unfinishedHandles);
if ($status !== CURLM_OK) {
throw new \Exception(curl_multi_strerror(curl_multi_errno($mh)));
}
while (($info = curl_multi_info_read($mh)) !== false) {
if ($info['msg'] === CURLMSG_DONE) {
$handle = $info['handle'];
curl_multi_remove_handle($mh, $handle);
$url = $map[$handle];
if ($info['result'] === CURLE_OK) {
$statusCode = curl_getinfo($handle, CURLINFO_HTTP_CODE);
echo "Request to {$url} finished with HTTP status {$statusCode}:", PHP_EOL;
echo curl_multi_getcontent($handle);
echo PHP_EOL, PHP_EOL;
} else {
echo "Request to {$url} failed with error: ", PHP_EOL;
echo curl_strerror($info['result']);
echo PHP_EOL, PHP_EOL;
}
}
}
if ($unfinishedHandles) {
if (($updatedHandles = curl_multi_select($mh)) === -1) {
throw new \Exception(curl_multi_strerror(curl_multi_errno($mh)));
}
}
} while ($unfinishedHandles);
curl_multi_close($mh);
?>