如何在 Codeigniter 4 中获取最后一个查询？ [重复]

Question

这是我当前的代码：

public function index()
{
    $tbl = 'm_trx';
    $db = \Config\Database::connect();
    $builder = $db->table($tbl);
    
    $data = [];

    $cols = "{$tbl}.*";
    $builder->select($cols);

    $data = $builder->get()->getResult();
    $asd = [
        'message' => $builder->getLastQuery(),
        'data' => $data,
    ];
    return $this->respond($asd);
}

但它返回错误

"message": "Call to undefined method CodeIgniter\\Database\\MySQLi\\Builder::getLastQuery()",

如果我将

$builder->getLastQuery()

更改为

$builder->db->getLastQuery()

它会返回此错误

"message": "Cannot access protected property CodeIgniter\\Database\\MySQLi\\Builder::$db",

Answer 1

您只需通过

$db

而无需通过

$builder->db

试试这个

$db->getLastQuery()