Obtain the client IP address

: This article mainly introduces how to obtain the IP address of the client. if you are interested in the PHP Tutorial, refer to it. You can use either of the following methods to obtain the client IP address: getenv ("REMOTE_ADDR") and $ _ SERVER ['remote _ ADDR ']

If the SERVER space is IIS, use $ _ SERVER ['remote _ ADDR ']
If the server space is apache, use getenv ("REMOTE_ADDR ")

Summary:
The getenv ("REMOTE_ADDR") function can get the IP address normally under apache, but it does not work at all in iis, and the $ _ SERVER ['remote _ ADDR '] function, you can obtain the visitor's IP address in apache, which is also valid in iis.

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The above describes how to obtain the IP address of the client, including the content, and hope to help friends who are interested in the PHP Tutorial.