What is the standard proper way to handle HTTP communication with PHP? -

i've been learning php online, couldn't find clear complete resource on matter.

i understand how perform following in php, using standard , modern way:

• read received payload data of request (whether post or get).
• set payload text of response.
• read request headers.
• set response headers.
• issue requests.

i know globals such $_get , $_post. there classes such httpresponse , httprequest.

it seems there various different ways handle http communication php. please explain standard, common or modern way handle php.

as mentioned, can read request data using super globals $_get and/or $_post.

the request header can read using getallheaders.

to send response header, use header function.

to send response body, use common output methods echo etc.