PHP: curl_multi_setopt - Manual

(PHP 5 >= 5.5.0, PHP 7, PHP 8)

curl_multi_setopt — Set a cURL multi option

Description

Sets an option on the given cURL multi handle.

Parameters

multi_handle

A cURL multi handle returned by curl_multi_init().

option

One of the CURLMOPT_* constants.

value

The value to be set on option. See the description of the CURLMOPT_* constants for details on the type of values each constant expects.

Return Values

Returns true on success or false on failure.

If you want to enable both HTTP/1.1 pipelining and HTTP/2 multiplexing...

<?php
curl_multi_setopt($mh, CURLMOPT_PIPELINING, 3);
?>

or

<?php
curl_multi_setopt($mh, CURLMOPT_PIPELINING, CURLPIPE_HTTP1 | CURLPIPE_MULTIPLEX);
?>