array( self::STANDARD => '{{name}} must contain only digits (0-9)', self::EXTRA => '{{name}} must contain only digits (0-9) and "{{additionalChars}}"' ), self::MODE_NEGATIVE => array( self::STANDARD => '{{name}} must not contain digits (0-9)', self::EXTRA => '{{name}} must not contain digits (0-9) or "{{additionalChars}}"' ) ); }