trunk/lib/timecalc.php

<?php
/* This file is part of BBClone (A PHP based Web Counter on Steroids)
 * 
 * CVS FILE $Id: timecalc.php,v 1.19 2011/12/30 23:03:48 joku Exp $
 *  
 * Copyright (C) 2001-2012, the BBClone Team (see doc/authors.txt for details)
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * See doc/copying.txt for details
 */

function bbc_time_offset() {
  global $BBC_TIMESTAMP, $BBC_TIME_OFFSET, $access, $last;

  $cfg_offset = !empty($BBC_TIME_OFFSET) ? $BBC_TIME_OFFSET : 0;
  $sav_offset = isset($access['time']['offset']) ? $access['time']['offset'] : 0;
  $diff_offset = $cfg_offset - $sav_offset;

  if (empty($diff_offset)) return;

  $diff_hours = -round($diff_offset / 60);
  $new_time = $BBC_TIMESTAMP + ($cfg_offset * 60);
  $old_time = $BBC_TIMESTAMP + ($sav_offset * 60);
  $access['time']['last'] += $diff_offset * 60;
  $access['time']['offset'] = $cfg_offset;

  // Shift the last reset marker as well if available
  if (!empty($access['time']['reset'])) $access['time']['reset'] += $diff_offset * 60;

  // shifting the detailed stats
  for ($i = 0, $max = count($last['traffic']); $i < $max; $i++) $last['traffic'][$i]['time'] += $diff_offset * 60;

  $last_day_in_month = $access['time']['day'][(count($access['time']['day']) - 1)];
  $today = date("w", $new_time);
  $yesterday = empty($today) ? ($today + 6) : ($today - 1);
  $days_diff = ($today != date("w", $old_time)) ? 1 : 0;

  $this_day = date("j", $new_time) - 1;
  $last_day = empty($this_day) ? $last_day_in_month : ($this_day - 1);

  $this_month = date("n", $new_time) - 1;
  $last_month = empty($this_month) ? ($this_month + 11) : ($this_month - 1);

  // shifting hourly stats to get the amount "this day - previous day" we need to modify
  $shift = array_splice($access['time']['hour'], $diff_hours, 24);
  $diff = ($diff_hours < 0) ? array_sum($shift) : array_sum($access['time']['hour']);
  $access['time']['hour'] = array_merge($shift, $access['time']['hour']);

  for ($i = 0, $hits = 0, $max = date("G", $new_time); $i <= $max; $i++) $hits += $access['time']['hour'][$i];
  for ($i = ($max + 1), $rest = 0; $i < 24; $i++) $rest += $access['time']['hour'][$i];

  if ($diff_hours < 0) {
    //set time forth
    $access['time']['wday'][$today] = $hits;
    $access['time']['day'][$this_day] = $hits;
    $access['time']['wday'][$yesterday] -= ($access['time']['wday'][$yesterday] < $diff) ? $hits : $diff;
    $access['time']['day'][$last_day] -= ($access['time']['day'][$last_day] < $diff) ? $hits : $diff;

    if ($access['time']['day'][$this_day] == $last_day_in_month) {
      $access['time']['month'][$this_month] = $hits;
      $access['time']['month'][$last_month] -= ($access['time']['month'][$last_month] < $diff) ? $hits : $diff;
    }
  }
  else {
    // set time back
    $access['time']['wday'][$yesterday] += $days_diff ? $rest : $diff;
    $access['time']['day'][$last_day] += $days_diff ? $rest : $diff;
    $access['time']['wday'][$today] = $hits;
    $access['time']['day'][$this_day] = $hits;

    if ($access['time']['day'][$this_day] == $access['time']['day'][0]) {
      $access['time']['month'][$last_month] += $days_diff ? $rest : $diff;
      $access['time']['month'][$this_month] = $hits;
    }
  }
}

// Update the time stats in $access['time']
function bbc_update_time_stat($new_time, $last_time) {
  global $access;

  // Independent variables
  static $nb_seconds_in_day  = 86400;
  static $nb_seconds_in_week = 604800;

  // Variables for the new time
  $new_hour = date("G", $new_time);
  $new_wday = date("w", $new_time);
  $new_day = date("j", $new_time) - 1;
  $new_month = date("n", $new_time) - 1;

  // Variables for the last time
  $last_hour = date("G", $last_time);
  $last_wday = date("w", $last_time);
  $last_day = date("j", $last_time) - 1;
  $last_month = date("n", $last_time) - 1;
  $last_lgmonth = date("t", $last_time);

  $nb_seconds_in_last_month = $last_lgmonth * $nb_seconds_in_day;
  $nb_seconds_in_last_year = (date("L", $last_time) ? 366 : 365) * $nb_seconds_in_day;

  // Updating the last connection time to the new one 
  // for the next call of bbc_update_time_stat
  $access['time']['last'] = $new_time;

  // Updating the hourly time stats (in a day)
  // Setting to zero the time-counters present between the last connections
  // and the new one, and incrementing the new time-counter
  // Last day, there are 24 hours = 86400 seconds
  if (($new_time - $last_time) > $nb_seconds_in_day) {
    for ($k = 0; $k < 24; $k++) $access['time']['hour'][$k] = 0;
  }
  else {
    $elapsed = $new_hour - $last_hour;
    $elapsed = ($elapsed < 0) ? $elapsed + 24 : $elapsed;
    for ($k = 1; $k <= $elapsed; $k++) $access['time']['hour'][($last_hour + $k) % 24] = 0;
  }
  $access['time']['hour'][$new_hour]++;

  // Updating the daily time stats (in a week)
  // Last week, there are 7 days = 604800 seconds
  if (($new_time - $last_time) > $nb_seconds_in_week) {
    for ($k = 0; $k < 7; $k++) $access['time']['wday'][$k] = 0;
  }
  else {
    $elapsed = $new_wday - $last_wday;
    $elapsed = ($elapsed < 0) ? $elapsed + 7 : $elapsed;
    for ($k = 1; $k <= $elapsed; $k++) $access['time']['wday'][($last_wday + $k) % 7] = 0;
  }

  $access['time']['wday'][$new_wday]++;

  // Updating the daily time stats (in a month)
  // Last month, there are 28, 29, 30 or 31 days
  // Note: we have to reset 31 days even if we are a month with less days
  if (($new_time - $last_time) > $nb_seconds_in_last_month) {
    for ($k = 0; $k < 31; $k++) $access['time']['day'][$k] = 0;
  }
  else {
    $elapsed = $new_day - $last_day;
    $elapsed = ($elapsed < 0) ? $elapsed + $last_lgmonth : $elapsed;
    for ($k = 1; $k <= $elapsed; $k++) $access['time']['day'][($last_day + $k) % $last_lgmonth] = 0;
  }

  $access['time']['day'][$new_day]++;

  // Updating the monthly time stats (in a year)
  // Last year, there are 12 months
  if (($new_time - $last_time) > $nb_seconds_in_last_year) {
    for ($k = 0; $k < 12; $k++) $access['time']['month'][$k] = 0;
  }
  else {
    $elapsed = $new_month - $last_month;
    $elapsed = ($elapsed < 0) ? $elapsed + 12 : $elapsed;
    for ($k = 1; $k <= $elapsed; $k++) $access['time']['month'][($last_month + $k) % 12] = 0;
  }
  $access['time']['month'][$new_month]++;
}
?>
Revision:	15
Committed:	Thu Nov 21 13:05:03 2013 UTC (11 years ago) by matthys
File size:	6872 byte(s)
Log Message:	Setup lib folder and files.
#	User	Rev	Content
1	matthys	15	<?php
2			/* This file is part of BBClone (A PHP based Web Counter on Steroids)
3			*
4			* CVS FILE $Id: timecalc.php,v 1.19 2011/12/30 23:03:48 joku Exp $
5			*
6			* Copyright (C) 2001-2012, the BBClone Team (see doc/authors.txt for details)
7			*
8			* This program is free software: you can redistribute it and/or modify
9			* it under the terms of the GNU General Public License as published by
10			* the Free Software Foundation, either version 3 of the License, or
11			* (at your option) any later version.
12			*
13			* This program is distributed in the hope that it will be useful,
14			* but WITHOUT ANY WARRANTY; without even the implied warranty of
15			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16			* GNU General Public License for more details.
17			*
18			* See doc/copying.txt for details
19			*/
20
21			function bbc_time_offset() {
22			global $BBC_TIMESTAMP, $BBC_TIME_OFFSET, $access, $last;
23
24			$cfg_offset = !empty($BBC_TIME_OFFSET) ? $BBC_TIME_OFFSET : 0;
25			$sav_offset = isset($access['time']['offset']) ? $access['time']['offset'] : 0;
26			$diff_offset = $cfg_offset - $sav_offset;
27
28			if (empty($diff_offset)) return;
29
30			$diff_hours = -round($diff_offset / 60);
31			$new_time = $BBC_TIMESTAMP + ($cfg_offset * 60);
32			$old_time = $BBC_TIMESTAMP + ($sav_offset * 60);
33			$access['time']['last'] += $diff_offset * 60;
34			$access['time']['offset'] = $cfg_offset;
35
36			// Shift the last reset marker as well if available
37			if (!empty($access['time']['reset'])) $access['time']['reset'] += $diff_offset * 60;
38
39			// shifting the detailed stats
40			for ($i = 0, $max = count($last['traffic']); $i < $max; $i++) $last['traffic'][$i]['time'] += $diff_offset * 60;
41
42			$last_day_in_month = $access['time']['day'][(count($access['time']['day']) - 1)];
43			$today = date("w", $new_time);
44			$yesterday = empty($today) ? ($today + 6) : ($today - 1);
45			$days_diff = ($today != date("w", $old_time)) ? 1 : 0;
46
47			$this_day = date("j", $new_time) - 1;
48			$last_day = empty($this_day) ? $last_day_in_month : ($this_day - 1);
49
50			$this_month = date("n", $new_time) - 1;
51			$last_month = empty($this_month) ? ($this_month + 11) : ($this_month - 1);
52
53			// shifting hourly stats to get the amount "this day - previous day" we need to modify
54			$shift = array_splice($access['time']['hour'], $diff_hours, 24);
55			$diff = ($diff_hours < 0) ? array_sum($shift) : array_sum($access['time']['hour']);
56			$access['time']['hour'] = array_merge($shift, $access['time']['hour']);
57
58			for ($i = 0, $hits = 0, $max = date("G", $new_time); $i <= $max; $i++) $hits += $access['time']['hour'][$i];
59			for ($i = ($max + 1), $rest = 0; $i < 24; $i++) $rest += $access['time']['hour'][$i];
60
61			if ($diff_hours < 0) {
62			//set time forth
63			$access['time']['wday'][$today] = $hits;
64			$access['time']['day'][$this_day] = $hits;
65			$access['time']['wday'][$yesterday] -= ($access['time']['wday'][$yesterday] < $diff) ? $hits : $diff;
66			$access['time']['day'][$last_day] -= ($access['time']['day'][$last_day] < $diff) ? $hits : $diff;
67
68			if ($access['time']['day'][$this_day] == $last_day_in_month) {
69			$access['time']['month'][$this_month] = $hits;
70			$access['time']['month'][$last_month] -= ($access['time']['month'][$last_month] < $diff) ? $hits : $diff;
71			}
72			}
73			else {
74			// set time back
75			$access['time']['wday'][$yesterday] += $days_diff ? $rest : $diff;
76			$access['time']['day'][$last_day] += $days_diff ? $rest : $diff;
77			$access['time']['wday'][$today] = $hits;
78			$access['time']['day'][$this_day] = $hits;
79
80			if ($access['time']['day'][$this_day] == $access['time']['day'][0]) {
81			$access['time']['month'][$last_month] += $days_diff ? $rest : $diff;
82			$access['time']['month'][$this_month] = $hits;
83			}
84			}
85			}
86
87			// Update the time stats in $access['time']
88			function bbc_update_time_stat($new_time, $last_time) {
89			global $access;
90
91			// Independent variables
92			static $nb_seconds_in_day = 86400;
93			static $nb_seconds_in_week = 604800;
94
95			// Variables for the new time
96			$new_hour = date("G", $new_time);
97			$new_wday = date("w", $new_time);
98			$new_day = date("j", $new_time) - 1;
99			$new_month = date("n", $new_time) - 1;
100
101			// Variables for the last time
102			$last_hour = date("G", $last_time);
103			$last_wday = date("w", $last_time);
104			$last_day = date("j", $last_time) - 1;
105			$last_month = date("n", $last_time) - 1;
106			$last_lgmonth = date("t", $last_time);
107
108			$nb_seconds_in_last_month = $last_lgmonth * $nb_seconds_in_day;
109			$nb_seconds_in_last_year = (date("L", $last_time) ? 366 : 365) * $nb_seconds_in_day;
110
111			// Updating the last connection time to the new one
112			// for the next call of bbc_update_time_stat
113			$access['time']['last'] = $new_time;
114
115			// Updating the hourly time stats (in a day)
116			// Setting to zero the time-counters present between the last connections
117			// and the new one, and incrementing the new time-counter
118			// Last day, there are 24 hours = 86400 seconds
119			if (($new_time - $last_time) > $nb_seconds_in_day) {
120			for ($k = 0; $k < 24; $k++) $access['time']['hour'][$k] = 0;
121			}
122			else {
123			$elapsed = $new_hour - $last_hour;
124			$elapsed = ($elapsed < 0) ? $elapsed + 24 : $elapsed;
125			for ($k = 1; $k <= $elapsed; $k++) $access['time']['hour'][($last_hour + $k) % 24] = 0;
126			}
127			$access['time']['hour'][$new_hour]++;
128
129			// Updating the daily time stats (in a week)
130			// Last week, there are 7 days = 604800 seconds
131			if (($new_time - $last_time) > $nb_seconds_in_week) {
132			for ($k = 0; $k < 7; $k++) $access['time']['wday'][$k] = 0;
133			}
134			else {
135			$elapsed = $new_wday - $last_wday;
136			$elapsed = ($elapsed < 0) ? $elapsed + 7 : $elapsed;
137			for ($k = 1; $k <= $elapsed; $k++) $access['time']['wday'][($last_wday + $k) % 7] = 0;
138			}
139
140			$access['time']['wday'][$new_wday]++;
141
142			// Updating the daily time stats (in a month)
143			// Last month, there are 28, 29, 30 or 31 days
144			// Note: we have to reset 31 days even if we are a month with less days
145			if (($new_time - $last_time) > $nb_seconds_in_last_month) {
146			for ($k = 0; $k < 31; $k++) $access['time']['day'][$k] = 0;
147			}
148			else {
149			$elapsed = $new_day - $last_day;
150			$elapsed = ($elapsed < 0) ? $elapsed + $last_lgmonth : $elapsed;
151			for ($k = 1; $k <= $elapsed; $k++) $access['time']['day'][($last_day + $k) % $last_lgmonth] = 0;
152			}
153
154			$access['time']['day'][$new_day]++;
155
156			// Updating the monthly time stats (in a year)
157			// Last year, there are 12 months
158			if (($new_time - $last_time) > $nb_seconds_in_last_year) {
159			for ($k = 0; $k < 12; $k++) $access['time']['month'][$k] = 0;
160			}
161			else {
162			$elapsed = $new_month - $last_month;
163			$elapsed = ($elapsed < 0) ? $elapsed + 12 : $elapsed;
164			for ($k = 1; $k <= $elapsed; $k++) $access['time']['month'][($last_month + $k) % 12] = 0;
165			}
166			$access['time']['month'][$new_month]++;
167			}
168			?>