How to detect a proxy in PHP
Just a simple code snippet which can tell if visitor is using Proxy. Please not that this code might fail to detect anonymous proxies.
How to get HTTP headers of any remote file?
Want to check Content-Type or Content-Length of a remote file without downloading whole file?
Then you should just request headers and not whole file from a remote server using HTTP protocol.
Here’s how to do this in PHP using fsockopen or cURL.
