It is exactly the same as the one in the video, but no data is output. It shows this stuff D:\wamp64\www\video\thinkphp\library\think\Debug.php:193:boolean false
Preliminary judgment, your database request data is a bool value. and is false. It may be that the database connection failed. Confirm that your database username and password are correct, and whether your php library exists
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
Use mysql_error() to check the reason for failure.
Preliminary judgment, your database request data is a bool value. and is false. It may be that the database connection failed. Confirm that your database username and password are correct, and whether your php library exists
Are you sure there is data returned?