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Many errors and pitfalls
This is not a trap nor an error, graphic tutorial
include ("conn.php"); There is no conn.php file in the file. When you want to learn, follow the tutorial step by step. Do not use it. Tools for executing code online
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
This is not a trap nor an error, graphic tutorial
include ("conn.php"); There is no conn.php file in the file. When you want to learn, follow the tutorial step by step. Do not use it. Tools for executing code online