How to make a redirect from a local server to a remote one?

Question

PHP

By the local machine the Apache is lifted, the website site1.ru is configured. There is a remote site site2.ru. I send ajax request to site1.ru/test.php. How can I make the local Apache, seeing this request, redirect it to site2.ru/test.php and return the answer from it to me?

Answer 1

mod_proxy ( Manual )

Answer 2

ProxyPass / http://api.site2.ru/
ProxyPassReverse / http://api.site2.ru/
<Proxy http://api.site2.ru/>
    Order deny,allow
    allow from all
</Proxy>

I did it like this, but not exactly what I need - now the redirect goes to the main site2.ru, and I need exactly api.site2.ru What could be the reason for this?