rest_is_ip_address( string $ip ): string|false

Determines if an IP address is valid.


Description

Handles both IPv4 and IPv6 addresses.


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Parameters

$ip string Required
IP address.

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Return

string|false The valid IP address, otherwise false.


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Source

File: wp-includes/rest-api.php. View all references

function rest_is_ip_address( $ip ) {
	$ipv4_pattern = '/^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$/';

	if ( ! preg_match( $ipv4_pattern, $ip ) && ! WpOrg\Requests\Ipv6::check_ipv6( $ip ) ) {
		return false;
	}

	return $ip;
}


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Changelog

Changelog
Version Description
4.7.0 Introduced.

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