PHP Manual: Attaches an IP address attribute

bool radius_put_addr ( resource $radius_handle , int $type , string $addr [, int $options = 0 [, int $tag ]] )

Attaches an IP address attribute to the current RADIUS request.

Note:
A request must be created via radius_create_request before this function can be called.

radius_handle: The RADIUS resource.
type: The attribute type.
addr: An IPv4 address in string form, such as 10.0.0.1.
options: A bitmask of the attribute options. The available options include RADIUS_OPTION_TAGGED and RADIUS_OPTION_SALT.
tag: The attribute tag. This parameter is ignored unless the RADIUS_OPTION_TAGGED option is set.

Returns TRUE on success or FALSE on failure.

Version	Description
PECL radius 1.3.0	The `options` and `tag` parameters were added.