php print version number of curl

Question

I need to print curl version using this documnts :

<?PHP echo curl_version('version');?>

but my output is empty! how do can i print version number of curl?

Answer 1

print_r(curl_version());    // remove your unexpected parameter
                            // also it returns an array , don't use echo. 

Fiddle

Edit after the comment

$values=curl_version();
echo $values["version"];

P.S: Of course you need to have cURL installed and enabled first.

Answer 2

<?php

$info = curl_version();
echo $info["version"];

?>