get_post

 

We need to upload a parameter 'a' that value is '1' in GET method. 

You know that the way to add someting behind URI like '?a=1' is GET method, so the first step is done.

 

Look at the next hint which demands us to post a value '2' named 'b' in POST method. 

We cannt use POST method just add something after URI by this means. 

Catch the HTTP Header and alter the GET method to POST method and dont forget to add the attribute 'Content-Type'.