bp_get_new_group_invite_friend_list( array $args = array() )

	function bp_get_new_group_invite_friend_list( $args = array() ) {

		// Bail if no friends component.
		if ( ! bp_is_active( 'friends' ) ) {
			return false;
		}

		// Parse arguments.
		$r = bp_parse_args( $args, array(
			'user_id'   => bp_loggedin_user_id(),
			'group_id'  => false,
			'before'    => '',
			'separator' => 'li',
			'after'     => '',
		), 'group_invite_friend_list' );

		// No group passed, so look for new or current group ID's.
		if ( empty( $r['group_id'] ) ) {
			$bp            = buddypress();
			$r['group_id'] = ! empty( $bp->groups->new_group_id )
				? $bp->groups->new_group_id
				: $bp->groups->current_group->id;
		}

		// Setup empty items array.
		$items = array();

		// Build list markup parent elements.
		$before = '';
		if ( ! empty( $r['before'] ) ) {
			$before = $r['before'];
		}

		$after = '';
		if ( ! empty( $r['after'] ) ) {
			$after = $r['after'];
		}

		// Get user's friends who are not in this group already.
		$friends = friends_get_friends_invite_list( $r['user_id'], $r['group_id'] );

		if ( ! empty( $friends ) ) {

			// Get already invited users.
			$invites = groups_get_invites_for_group( $r['user_id'], $r['group_id'] );

			for ( $i = 0, $count = count( $friends ); $i < $count; ++$i ) {
				$checked = in_array( (int) $friends[ $i ]['id'], (array) $invites );
				$items[] = '<' . $r['separator'] . '><label for="f-' . esc_attr( $friends[ $i ]['id'] ) . '"><input' . checked( $checked, true, false ) . ' type="checkbox" name="friends[]" id="f-' . esc_attr( $friends[ $i ]['id'] ) . '" value="' . esc_attr( $friends[ $i ]['id'] ) . '" /> ' . esc_html( $friends[ $i ]['full_name'] ) . '</label></' . $r['separator'] . '>';
			}
		}

		/**
		 * Filters the array of friends who can be invited to a group.
		 *
		 * @since BuddyPress 2.4.0
		 *
		 * @param array $items Array of friends.
		 * @param array $r     Parsed arguments from bp_get_new_group_invite_friend_list()
		 * @param array $args  Unparsed arguments from bp_get_new_group_invite_friend_list()
		 */
		$invitable_friends = apply_filters( 'bp_get_new_group_invite_friend_list', $items, $r, $args );

		if ( ! empty( $invitable_friends ) && is_array( $invitable_friends ) ) {
			$retval = $before . implode( "\n", $invitable_friends ) . $after;
		} else {
			$retval = false;
		}

		return $retval;
	}