fav_services（）不起作用编码不起作用

Question

我正在尝试获取收藏夹数据

public function fav_services(){
  $logged = $this->session->userdata('user_id');
  $query = "SELECT * FROM `service_favorites`  JOIN service ON service.sid = service_favorites.s_id WHERE uid = '$logged'";
  return $this->db->query($query);   
}

Answer 1

我犯了一个愚蠢的错误。应该使用LEFT连接。

public function fav_services(){
   $logged = $this->session->userdata('user_id');
   $query = "SELECT * FROM `service_favorites` LEFT JOIN service ON service.sid = service_favorites.s_id WHERE uid = '$logged'";
   return $this->db->query($query);   
}