CodeIgniter Verifying the IP address _php instance

The example in this article describes the method of CodeIgniter verifying an IP address. Share to everyone for your reference. The specific analysis is as follows:

This demonstrates how CodeIgniter obtains the User IP address while verifying the validity of the IP address

Get User ip:

$this->input->ip_address ();//If the IP acquisition fails, then return 0.0.0.0, we can also use the following code to verify the validity of the IP $ip = "192.168.1.1"; if (! $this INPUT->VALID_IP ($IP)) {echo "Not a valid IP address";} else{echo "Valid IP address!";}

I hope this article is helpful to everyone based on CodeIgniter PHP program design.

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