我试图基于查找“mentor_id”和“feedbacker_id”匹配变量输入的行来更新表。WHERE mentor_id=? AND feedbacker_id=?"))mysqli_stmt_execute($stmt);
mysqli_stmt_close($stmt);我在MySQLI语句之前对每个变量进行了测试,以检查它们都包含信息和do。WHERE mentor_id=? AN
$query = ("select * from `users` where (`username`='$username' and `password`='$password' or select *from `users` where `$username `='$email' and `password`='$password')"); mysql_num_rows(): supplied这意味着我的查询是错误的</e