How to ban access to a certain IP or IP address range in PHP

This article mainly introduces the method of prohibiting access to a certain IP or IP address range in PHP, involving the operation skills of server variables $_SERVER, files and strings. It has certain reference value. Friends in need can refer to it

The example in this article describes how PHP prohibits access to a certain IP or IP address range. The specific analysis is as follows:

Because I have not studied Apache and nginx in depth, I wrote a small program in PHP that can disable addresses
When using, just:

Disable a single ip as follows:

ban.dat file is as follows:

BEGIN: 
119.184.251.245 
127.0.0.1 
192.168.1.100

Disable ip segment As follows:

Summary: The above is the entire content of this article, I hope it will be helpful to everyone's study.

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