CURL

CURL (Client URL) – library with open source code used for sending HTTP requests from various programming languages, including C, PHP and others.

Using CURL is available only starting from PHP version 8.0. Current implementation in the client can be viewed as experimental. CURL can give a significant boost of performance due to being a binary code and not the extended handling of sockets on PHP. This is specifically noticeable at the couple implemented asynchronous queries.

Additionally, CURL allows to diagnose specific issues due to having a detailed debugging:

$http = new HttpClient([
	'useCurl' => true,
	'curlLogFile' => '/home/bitrix/www/curl.txt',
]);