curl_multi_exec

(PHP 5, PHP 7)

curl_multi_execRun the sub-connections of the current cURL handle

Description

curl_multi_exec ( resource $mh , int &$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

mh

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.

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 options
curl_setopt($ch1CURLOPT_URL"http://example.com/");
curl_setopt($ch1CURLOPT_HEADER0);
curl_setopt($ch2CURLOPT_URL"http://www.php.net/");
curl_setopt($ch2CURLOPT_HEADER0);

//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);

?>

See Also

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