$when public property A PHP callable whose return value determines

validateValue() protected method Validates a value.

$compareValue public property The constant value to be compared

$enableIDN public property Whether validation process should take

$skipOnEmpty public property Whether this validation rule should

$allowMessageFromRule public property Whether to use error message

$min public property Minimum length. If not set, it means no minimum

$ipv4Pattern public property Regexp-pattern to validate IPv4 address

$ipv6 public property Whether the validating value can be an IPv6

$message public property The error message used when a file is