$.ajax with $.each

$.ajax with $.each

I have several divs equal with different values ​​and I'm trying to get all the id like this:

  2. $(".compartilhamento").each(function(){
  3.       var compartilhamentos_id4 = $(this).attr("id");
  4.       var compartilhamentos_id3 = compartilhamentos_id4.split("_");
  5.       var compartilhamentos_id2 = compartilhamentos_id3[2];
  6. });

and now I have all the ids in a var.. I use this var and sends it to a php file.. how i do it ? 

  2. $.ajax({
  3. url: "ajax/load.php",
  4. type: "post",
  5. dataType: "json",
  6. cache: false,
  7. data:
  8. {
  9. compartilhamentos_id2: compartilhamentos_id2 
  10. });