Am making multiple requests to a whois server via my php script , but the server blocks me in the registry if i request too many times using the same IP , So I need a method to change my IP using proxy to make requests in different IPs.

Currently i've tried using SOCKS but it has a set external IP and is not changing and thus not helping me.

Please suggest me something , i'll choose a best answer , this is URGENT.

Thanks so much !