WpOrg\Requests

Ipv6::split_v6_v4() │ private static │ WP 1.0

Splits an IPv6 address into the IPv6 and IPv4 representation parts

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

Method of the class: Ipv6{}

No Hooks.

Return

String[]. [0] contains the IPv6 represented part, and [1] the IPv4 represented part

Usage

$result = Ipv6::split_v6_v4( $ip );
$ip(string) (required)
An IPv6 address

Ipv6::split_v6_v4() code WP 6.6.2

wp-includes/Requests/src/Ipv6.php 
private static function split_v6_v4($ip) {
	if (strpos($ip, '.') !== false) {
		$pos       = strrpos($ip, ':');
		$ipv6_part = substr($ip, 0, $pos);
		$ipv4_part = substr($ip, $pos + 1);
		return [$ipv6_part, $ipv4_part];
	} else {
		return [$ip, ''];
	}
}