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How can I set an IP segment in the backend for login in php?

Source: Internet
Author: User
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Sometimes we want the IP address of the website's Changsha address to be able to log on, but the IP address of other regions cannot log on. next I will write a php program for you, which will limit the access of an IP segment in the background, the instance code is as follows :? Phppublicfu... sometimes we want the IP address of the website's Changsha address to be able to log on, but the IP address of other regions cannot log on. next I will write a php program for you, which will limit the access of an IP segment in the background, the instance code is as follows:

Put the following code in your website background login portal for calling, and then change m = admin & c = index & a = login to your address.

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