ajax jquery return back call can use again php

ajax jquery return back call can use again php

//ajax jquery return back call

   $('#content-itemCat-2a').html(output).show();


//return value output which is 700

  <div id="#content-itemCat-2a">700</div>


Hi expert here i would like to ask question if i can pass this return value output in div which has an id of #content-itemcat2a in php using array? or i need again to manipulate thru jquery thing