exception.php

<?php

class InvalidIpFormatException extends \InvalidArgumentException {}

class InvalidIpRangeException extends \InvalidArgumentException {}

class IpV4Validator
{
    private $_ip;
 
    public function __construct( $ipAddr ) {
      $this->_ip = $ipAddr;
    }
 
    public function validate() {
      if( false === $this->isIpv4() ) {
        throw new InvalidIpFormatException( 'ip address must be ip v4' );
      }

      if( false === $this->isValidIpRange() {
        throw new InvalidIpRangeException( 'ip address is invalid' );
      }
    }

}
 
?>