because it simple...

What is my request data, php request headers

Main content page - php request headers.Each request is represented by some state information, and the desired behavior is that the resolver transmit queries to name servers in a way that maximizes the probability that the request is answered, minimizes the time that the request takes, and avoids excessive transmissions.
Note that if the resolver structure allows one request to start others in parallel, such as when the need to access a name server for one request causes a parallel resolve for the name server's addresses, the spawned request should be started with a lower counter.
'GET', 'HEAD', 'POST', 'PUT'. Note: PHP script is terminated after sending headers (it means after producing any output without output buffering) if the request method was HEAD. 'REQUEST_TIME' The timestamp of the start of the request.
Transparent Proxy - This type of proxy server identifies itself as a proxy server and also makes the original IP address available through the http headers. These are generally used for their ability to cache websites and do not effectively provide any anonymity to those who use them. However, the use of a transparent proxy will get you around simple IP bans.
Anonymous Proxy - This type of proxy server identifies itself as a proxy server, but does not make the original IP address available. This type of proxy server is detectable, but provides reasonable anonymity for most users.