PHP curl_multi_init() Function Usage and Example

PHP CURL Reference Manual

(PHP 5)

curl_multi_init — Returns a new CURL batch handle

Syntax

resource curl_multi_init ( void )

Allow the parallel processing of batch CURL handles.

Parameters

This function has no parameters.

Return Value

Returns a CURL batch handle on success, FALSE on failure.

Online Example

This example will create2A set of CURL handles, add them to the batch handle, and run them in parallel.

<?php
//　Create a pair of CURL resources
$ch1　= curl_init();
$ch2　= curl_init();
//　Set URL and corresponding options
curl_setopt($ch1, CURLOPT_URL, "http://www.oldtoolbag.com/");
curl_setopt($ch1, CURLOPT_HEADER, 0);
curl_setopt($ch2, CURLOPT_URL, "http://www.php.net/");
curl_setopt($ch2, CURLOPT_HEADER, 0);
//　Create batch CURL handle
$mh = curl_multi_init();
//　add2handle
curl_multi_add_handle($mh, $ch1);
curl_multi_add_handle($mh, $ch2);
$running = null;
//　Execute batch handles
do {
　　　　usleep(10000);
　　　　curl_multi_exec($mh, $running);
} while ($running > 0);
//　Close all handles
curl_multi_remove_handle($mh, $ch1);
curl_multi_remove_handle($mh, $ch2);
curl_multi_close($mh);
?>

PHP CURL Reference Manual