I want to create a web proxy list like proxy4free or proxy.org if anyone can give me a script for free proxy list please help me
To begin with, you'll need to search for proxies - all day every day. Do you really have that much time to devote to this? (If not, it's a waste of anyone's time to put in any time helping you.) There's no script that will find the proxies for you.
Let me disagree with Rukbat, you can develop an script to find proxies for you, but most of them aren't going to be working proxies, you need to somehow check that proxy IP and ports to know what are working and open proxies and what not.
On the contrary, most of them will be working proxies. But most of them will be blocked by every school and business within hours of being used. The proxies still work, the place you're trying to use them from doesn't allow you to. And you CAN NOT make lists of which businesses and which schools are blocking which proxies - because that information is inside the LAN, not outside where you can get it. So using a proxy from a well-run LAN is a useless waste of effort. And using one from a LAN that's not well run usually isn't needed, because the sites you want to go to aren't blocked either.