Server page how to respond to a post request and deal with the data submitted post?-CodePudding

I'm doing a C/S system, hope from the client to send data to the server page and display,
On the client side I use libcurl library implements the post request, and successfully returned to the web page information, but I don't know how to receive post submitted data on the server, and for processing, have not learned web programming, request a great god guiding ideas,
I wish to submit a photo, and displayed on the web,

CodePudding user response:

With js, or what language, there is a post request processing to monitor function or what, I'm really confused about,

CodePudding user response:

The backend server (receiver), in PHP,

 
<? PHP 
$a=_ $POST [' write POST key name here]//if any 
$return=... 
Echo $//see the echo return a return 
?>