![警告问题：期望参数1为mysqli_result [重复]](http://www.mshxw.com/aiimages/31/416655.png "警告问题：期望参数1为mysqli_result [重复]")
mysqli_query()``FALSE如果查询中有错误，则返回。所以你应该测试一下…
if ($result = mysqli_query($dbc, "SELECt Name FROM City LIMIT 10")) { printf("Select returned %d rows.n", $result->num_rows); $result->close();}请参阅此链接以获取
mysqli_query参考
http://php.net/manual/zh/mysqli.query.php
