Requests_IPv6::split_v6_v4() WordPress Method
The Requests_IPv6::split_v6_v4() method is used to split an IPv6 address into its IPv6 and IPv4 components. This is useful for determining whether an address is IPv6-only or dual-stack.
Requests_IPv6::split_v6_v4( string $ip ) #
Splits an IPv6 address into the IPv6 and IPv4 representation parts
Description
RFC 4291 allows you to represent the last two parts of an IPv6 address using the standard IPv4 representation
Example: 0:0:0:0:0:0:13.1.68.3 0:0:0:0:0:FFFF:129.144.52.38
Parameters
- $ip
(string)(Required)An IPv6 address
Return
(string[]) [0] contains the IPv6 represented part, and [1] the IPv4 represented part
Source
File: wp-includes/Requests/IPv6.php
protected static function split_v6_v4($ip) {
if (strpos($ip, '.') !== false) {
$pos = strrpos($ip, ':');
$ipv6_part = substr($ip, 0, $pos);
$ipv4_part = substr($ip, $pos + 1);
return array($ipv6_part, $ipv4_part);
}
else {
return array($ip, '');
}
}
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