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diff --git a/src/usr/local/bin/captiveportal_gather_stats.php b/src/usr/local/bin/captiveportal_gather_stats.php
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@@ -0,0 +1,115 @@
+#!/usr/local/bin/php-cgi -q
+<?php
+/* $Id$ */
+/*
+ captiveportal_gather_stats.php
+ Copyright (C) 2011 Warren Baker
+ Copyright (C) 2013-2015 Electric Sheep Fencing, LP
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice,
+ this list of conditions and the following disclaimer.
+
+ 2. Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+ OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ POSSIBILITY OF SUCH DAMAGE.
+*/
+
+require_once("functions.inc");
+require_once("captiveportal.inc");
+require_once("util.inc");
+
+global $cpzone;
+
+$cpzone = $argv[1];
+$type = $argv[2];
+
+/* read in captive portal db */
+$cpdb = captiveportal_read_db();
+
+/* determine number of logged in users */
+$no_users = count($cpdb);
+$concurrent_users = $no_users;
+
+/* set initial user count to zero */
+$current_user_count = 0;
+
+/* tmp file to use to store old data (per interface)*/
+$tmpfile = "{$g['vardb_path']}/captiveportal_online_users";
+
+if (empty($type)) {
+ exit;
+}
+
+/* echo the rrd required syntax */
+echo "N:";
+$result = "NaN";
+
+if ($type == "loggedin") {
+
+ /* Find out the previous user timestamp
+ * so we can determine the difference between the current
+ * and previous user count. If the file is empty return a 0.
+ */
+ $fd = @fopen($tmpfile, "r");
+ if ($fd) {
+ while (!feof($fd)) {
+ $line = trim(fgets($fd));
+ if ($line) {
+ $previous_user_timestamp = $line;
+ } else {
+ $previous_user_timestamp = 0;
+ }
+ }
+ } else {
+ $previous_user_timestamp = 0;
+ }
+ @fclose($fd);
+
+ foreach ($cpdb as $user) {
+ $user_ip = $user[2];
+ // Record the timestamp
+ $timestamp = $user[0];
+ if ($timestamp > $previous_user_timestamp) {
+ $current_user_count = $current_user_count + 1;
+ }
+ }
+
+ // Write out the latest timestamp but not if it is empty
+ if (!empty($timestamp)) {
+ $fd = @fopen($tmpfile, "w");
+ if ($fd) {
+ fwrite($fd, $timestamp);
+ }
+ @fclose($fd);
+ }
+
+ /* If $timestamp is less than or equal to previous_user_timestamp return 0,
+ * as we only want the 'X' number of users logged in since last RRD poll.
+ */
+ if ($timestamp <= $previous_user_timestamp) {
+ $result = 0;
+ } else {
+ $result = $current_user_count;
+ }
+} elseif ($type == "concurrent") {
+ $result = $no_users;
+}
+
+echo "$result";
+
+?>
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