How to convert php ipv6 to ipv4

php Method to convert ipv6 to ipv4: 1. Create a PHP sample file; 2. Define a variable "$ipv6 = '2a01:4f8:190:4413::2';"; 3. Use hexdec and The substr function converts the ipv6 address to an ipv4 address.

#The operating environment of this article: Windows7 system, PHP7.1, Dell G3 computer.

php How to convert ipv6 to ipv4?

php code to convert ipv6 address to ipv4 address

The code is as follows:

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

hexdec () function converts hexadecimal to decimal.

Syntax: hexdec(hex_string)

substr() function returns a part of the string.

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

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