What is the reason why txt files cannot be read when using Phpstudy's integrated environment?

Recently in the use of PHP read TXT file, always can not read, what is the problem? Where is the configuration decided this ah? Search a lot, did not find the problem, do not know how to solve?
Httpd-conf as follows:

I added Text/plain, and then Apache started to stop itself immediately, why?

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Recently in the use of PHP read TXT file, always can not read, what is the problem? Where is the configuration decided this ah? Search a lot, did not find the problem, do not know how to solve?
Httpd-conf as follows:

I added Text/plain, and then Apache started to stop itself immediately, why?

1. First, you use the Webserver software is Apache httpd or nginx;
2. Second, if it is httpd then please specify the DocumentRoot in the configuration item in httpd.conf as your current directory D:\phpstudy\WWW , if it is nginx, specify root in the nginx.conf in your current directory D:\phpstudy\WWW ;
3. In addition, I tried a bit phpstudy did not find the problem described by the main topic.
Update 1:
Ask the main question to check if TypesConfig conf/mime.types there is a text/plain text line in the httpd.conf, and if not, add it.

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Can another file in the same directory .php open? If it doesn't open, that's the 域名 problem with the configuration.

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