在看到对引导程序设计的更改之前,需要先清除浏览器数据

I have an issue. I'm currently using bootsrap version 4.1.2 on xampp. The problem is everytime i make a change to the bootstrap.css file, i need to clear my browser data before i can see those changes. If i dont clear it, the design will look the same as before. Thanks

This has nothing to do with PHP.

This is a simple case of caching, which the browser performs to speed up load time.

This can be prevented, amongst all other ways, by using this example -

https://stackoverflow.com/a/460442/6382913