hi i have a problem when i pass the button value... when i click the button i want to show the detail depends on the button but i guess button value doesnt pass from view to controller. help,,,

//view(button)

<div class="marketer">
<?php foreach($marketer_list as $marketer){ ?>
<button  type="button"  class="mid" name= "posting_user_id" value="<?=$marketer->id?>"><?=$marketer->username?></button>
<?php }?> 
</div>
 

  $(document).ready(function () {
 
$('.mid').click(function(){
    var id = $(this).attr('value');
  alert(id);
    if (id=='<?=$detail->posting_user_id?>')
    {
      $(".show_posting").show(); 
    }else{
            alert("no info");
    }
  });
}); 
 
 
 
//controller
$posting_user_id = $this->input->post('posting_user_id');
 
 
  $data['daily'] = $result;
  $data['posting'] = $this->posting_models->get_manage_hospital_list($posting_user_id);
   $this->load->view('posting',$data);
 
//model
  function get_manage_hospital_list($posting_user_id){
    $this->db->select('u.hosp_name,p.*');
    $this->db->from('users as u');
    $this->db->join('posting_plan as p', 'u.id=p.hospital_id');
    $this->db->where('posting_user_id',$posting_user_id);
    $this->db->order_by('p.report_day','asc');
   
    return $this->db->get()->result();
  }