I wanted to install Zend Framework 2. So I downloaded the skeleton application. As mentioned in the ZF2 manual, we have to issue the command
The Valery's answer helped me: https://stackoverflow.com/a/14265815/492457
WAMP uses different php.ini files in the CLI and for Apache. when you enable php_openssl through the WAMP UI, you enable it for Apache, not for the CLI. You need to modify C:\wamp\bin\php\php-5.4.3\php.ini to enable it for the CLI.