HTTP_OAuth installation help

I got this error.

Warning: require_once(HTTP/OAuth.php) [function.require-once]: failed to open stream: No such file or directory in C:\xampp\htdocs\simplegeo-Services_SimpleGeo-7e5516f\Services\SimpleGeo.php on line 25

Fatal error: require_once() [function.require]: Failed opening required 'HTTP/OAuth.php' (include_path='.;C:\xampp\php\PEAR') in C:\xampp\htdocs\simplegeo-Services_SimpleGeo-7e5516f\Services\SimpleGeo.php on line 25

How can I install pear or HT开发者_Python百科TP/OAuth.php I don't have an idea how can I install it. I appreciate your answers.

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Easiest way to do this:

pear install HTTP_OAuth

good places to start looking for answers are

1. http://php.net/oauth
2. http://php.net/manual/en/oauth.setup.php
3. http://pear.php.net/package/HTTP_OAuth/

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Also check this : http://www.phpclasses.org/blog/package/7700/post/1-Painless-OAuth-with-PHP.html

Is seems to be a simpler way to use OAuth protocol very transparently.