<li onclick="hits('huaquan')">

function hits(data){
	$.ajax({
		type: "POST",
		url: "/index.php?s=photo&c=home&m=hits&id="+{$id}+"&type="+data,
		success: function(data){
			
		},
		error: function(data){
			
		}
	})
}

public function hits(){
		$id = $this->input->get('id', true);
		$type = $this->input->get('type', true);
		
		$hits = $this->db->select('huaquan')->where('id',$id)->get(SITE_ID.'_photo')->result_array();
		$huaquan = $hits[0]['huaquan']+1;

		$result = $this->db->where('id', $id)->update(SITE_ID.'_photo', ['huaquan'=>$huaquan]);

		if($result){
			return json_decode(['code'=>1]);
		}else{
			return json_decode(['code'=>0]);
		}

		
	}