Ip Validator

Zend\Validator\Ip allows you to validate if a given value is an IP address. It supports the IPv4, IPv6 and IPvFeature definitions.

Supported options for Zend\Validator\Ip

The following options are supported for Zend\Validator\Ip:

• allowipv4: Defines if the validator allows IPv4 addresses. This option defaults to TRUE.
• allowipv6: Defines if the validator allows IPv6 addresses. This option defaults to TRUE.
• allowipvfuture: Defines if the validator allows IPvFuture addresses. This option defaults to false.
• allowliteral: Defines if the validator allows IPv6 or IPvFuture with URI literal style (the IP surrounded by brackets). This option defaults to true.

Basic usage

A basic example of usage is below:

$validator = new Zend\Validator\Ip();
if ($validator->isValid($ip)) {
    // ip appears to be valid
} else {
    // ip is invalid; print the reasons
}

Note

Invalid IP addresses

Keep in mind that Zend\Validator\Ip only validates IP addresses. Addresses like ‘mydomain.com‘ or ‘192.168.50.1/index.html‘ are no valid IP addresses. They are either hostnames or valid URLs but not IP addresses.

Note

IPv6/IPvFuture validation

Zend\Validator\Ip validates IPv6/IPvFuture addresses with regex. The reason is that the filters and methods from PHP itself don’t follow the RFC. Many other available classes also don’t follow it.

Validate IPv4 or IPV6 alone

Sometimes it’s useful to validate only one of the supported formats. For example when your network only supports IPv4. In this case it would be useless to allow IPv6 within this validator.

To limit Zend\Validator\Ip to one protocol you can set the options allowipv4 or allowipv6 to FALSE. You can do this either by giving the option to the constructor or by using setOptions() afterwards.

$validator = new Zend\Validator\Ip(array('allowipv6' => false));
if ($validator->isValid($ip)) {
    // ip appears to be valid ipv4 address
} else {
    // ip is no ipv4 address
}

Note

Default behaviour

The default behaviour which Zend\Validator\Ip follows is to allow both standards.