Selenium installation failed windows 7.

Trying to install PHPUnit through pear I have successfully installed pear on my pc,

and when I try to install Selenium if get this error:

Attempting to discover channel "pear.phpunit.de"...
Attempting fallback to https instead of http on channel "pear.phpunit.de"...
unknown channel "pear.phpunit.de" in "http://ift.tt/1JWBdnY"
invalid package name/package file "http://ift.tt/1JWBdnY"
install failed

now when I try to run this command:

pear channel-discover pear.phpunit.de

i get the following error:

Discovering channel pear.phpunit.de over http:// failed with message: channel-add: Cannot open "http://ift.tt/1Fi9rwY" (File http://ift.tt/1Fi9rwY not valid (received: HTT
P/1.1 410 Gone
))
Trying to discover channel pear.phpunit.de over https:// instead
Discovery of channel "pear.phpunit.de" failed (channel-add: Cannot open "http://ift.tt/1Fi9oBc" (Connection to `pear.phpunit.de:443' failed: Unable to find the socket transport "ssl" - d
id you forget to enable it when you configured PHP?))

I searched the web and I looked at few question on Stack-overflow about this problem, none of them helped me to solve this issue. I am not sure if the pear is discontinue and I have to install Selenium in a different way or what please help.