php mysqli获取对象

Question

任何人都可以在我的PHP代码中发现任何错误吗？

<?php
$keyword=$_GET['keyboards'];
$sql = "SELECT *FROM MyGuests WHERE lastname LIKE '$keyword'";
$result=mysqli_query($conn,$sql);
$sss=mysqli_num_rows($result);

if($sss)
{
    while($row=mysqli_fetch_object($result)){       
        **echo "id: " . $row['lastname'].  "<br>";**            
    }
}
?>

问题在这里：

echo "id: " . $row['lastname'].  "<br>";

Answer 1

尝试

while ($row =$result->fetch_object()) {
        echo $reg->lastname;
        }

或

while ($row =$result->fetch_object()) {
        echo $reg['lastname'];
        }