php - 将数组转换为字符串 MySQL 查询

Question

我有一个要在查询中使用的数组:

Array ( [0] => stdClass Object ( [followee] => 267,269,270,271,272,273,275,276,277,278,279 ) )

我不确定为什么它返回消息:

Object of class stdClass could not be converted to string.

Controller :

$data['activity'] = $this->home_model->activity($followID);

型号:

function activity($followID)
{
    $query_str = 'SELECT DISTINCT name
                    FROM place
                    WHERE userid IN ("'. implode('","', $followID) .'")';

$query = $this->db->query($query_str);

Answer 1

尝试$your_array[0]->followee。