Curl library allows the scripts to make external requests to other domains. The main reason that Curl needs to be enabled on PHP is because EasySocial allows link crawling capabilities. During the installation process, EasySocial would be able to retrieve the download and files directly from our site.
Installing Curl Library using YUM (linux)
It is very simple to install Curl library on your site if you're using the Yellowdog Updater a.k.a YUM. You may install it by running the folllowing in the terminal.
Enabling Curl Library (windows)
To setup php with cURL library on Microsoft Windows machines, you only need to edit the
php.ini file which is normally located in
C:\Windows\System32\php.ini. The folder may differ and you can find out the loaded php.ini configuration file via the PHP Information in Joomla.
If you are unsure how to do this, it's best to contact your hosting provider for clarifications.