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root/BBClone/trunk/lib/timecalc.php
Revision: 356
Committed: Fri Dec 11 10:49:19 2015 UTC (8 years, 11 months ago) by joku
File size: 6654 byte(s)
Log Message:
update Copyright

File Contents

# Content
1 <?php
2 /* This file is part of BBClone (A PHP based Web Counter on Steroids)
3 *
4 * SVN FILE $Id$
5 *
6 * Copyright (C) 2001-2016, 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 ?>

Properties

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