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Php ipv6 how to transfer to ipv4, many novices are not very clear about this, in order to help you solve this problem, the following editor will explain for you in detail, people with this need can come to learn, I hope you can gain something.

The method of php ipv6 to ipv4: 1, create a PHP example file; 2, define a variable "$ipv6 = '2a01 PHP 4f8 PHP 190;"; 3, convert ipv6 address to ipv4 address through hexdec and substr functions.

This article operating environment: Windows7 system, PHP7.1, Dell G3 computer.

How to transfer php ipv6 to IPv4?

Php code converts an ipv6 address to an ipv4 address

The code is as follows:

$ipv6 = '2a01 hexdec 4f8 hexdec 190 substr 4413 hexdec substr ($ipv6, 0,2). "." Hexdec (substr ($ipv6, 2,2)). "." Hexdec (substr ($ipv6, 5,2)). "." Hexdec (substr ($ipv6, 7,2)); echo $ipv4

The hexdec () function converts hexadecimal to decimal.

Syntax: hexdec (hex_string)

The substr () function returns a portion of the string.

Note: if the start parameter is negative and length is less than or equal to start, length is 0.

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