The PHP operation database is completely fine when tested locally, but an error occurs when uploading it to the Alibaba Cloud virtual host. Ask for solutions.
First of all, you need to check what errors are reported. There is no problem with local debugging. It is very common for problems to occur online. Pay attention to the capitalization and capitalization of letters.
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
First of all, you need to check what errors are reported. There is no problem with local debugging. It is very common for problems to occur online. Pay attention to the capitalization and capitalization of letters.