Date.php
9.1 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
<?php
namespace fast;
use DateTime;
use DateTimeZone;
/**
* 日期时间处理类
*/
class Date
{
const YEAR = 31536000;
const MONTH = 2592000;
const WEEK = 604800;
const DAY = 86400;
const HOUR = 3600;
const MINUTE = 60;
/**
* 计算两个时区间相差的时长,单位为秒
*
* $seconds = self::offset('America/Chicago', 'GMT');
*
* [!!] A list of time zones that PHP supports can be found at
* <http://php.net/timezones>.
*
* @param string $remote timezone that to find the offset of
* @param string $local timezone used as the baseline
* @param mixed $now UNIX timestamp or date string
* @return integer
*/
public static function offset($remote, $local = null, $now = null)
{
if ($local === null) {
// Use the default timezone
$local = date_default_timezone_get();
}
if (is_int($now)) {
// Convert the timestamp into a string
$now = date(DateTime::RFC2822, $now);
}
// Create timezone objects
$zone_remote = new DateTimeZone($remote);
$zone_local = new DateTimeZone($local);
// Create date objects from timezones
$time_remote = new DateTime($now, $zone_remote);
$time_local = new DateTime($now, $zone_local);
// Find the offset
$offset = $zone_remote->getOffset($time_remote) - $zone_local->getOffset($time_local);
return $offset;
}
/**
* 计算两个时间戳之间相差的时间
*
* $span = self::span(60, 182, 'minutes,seconds'); // array('minutes' => 2, 'seconds' => 2)
* $span = self::span(60, 182, 'minutes'); // 2
*
* @param int $remote timestamp to find the span of
* @param int $local timestamp to use as the baseline
* @param string $output formatting string
* @return string when only a single output is requested
* @return array associative list of all outputs requested
* @from https://github.com/kohana/ohanzee-helpers/blob/master/src/Date.php
*/
public static function span($remote, $local = null, $output = 'years,months,weeks,days,hours,minutes,seconds')
{
// Normalize output
$output = trim(strtolower((string)$output));
if (!$output) {
// Invalid output
return false;
}
// Array with the output formats
$output = preg_split('/[^a-z]+/', $output);
// Convert the list of outputs to an associative array
$output = array_combine($output, array_fill(0, count($output), 0));
// Make the output values into keys
extract(array_flip($output), EXTR_SKIP);
if ($local === null) {
// Calculate the span from the current time
$local = time();
}
// Calculate timespan (seconds)
$timespan = abs($remote - $local);
if (isset($output['years'])) {
$timespan -= self::YEAR * ($output['years'] = (int)floor($timespan / self::YEAR));
}
if (isset($output['months'])) {
$timespan -= self::MONTH * ($output['months'] = (int)floor($timespan / self::MONTH));
}
if (isset($output['weeks'])) {
$timespan -= self::WEEK * ($output['weeks'] = (int)floor($timespan / self::WEEK));
}
if (isset($output['days'])) {
$timespan -= self::DAY * ($output['days'] = (int)floor($timespan / self::DAY));
}
if (isset($output['hours'])) {
$timespan -= self::HOUR * ($output['hours'] = (int)floor($timespan / self::HOUR));
}
if (isset($output['minutes'])) {
$timespan -= self::MINUTE * ($output['minutes'] = (int)floor($timespan / self::MINUTE));
}
// Seconds ago, 1
if (isset($output['seconds'])) {
$output['seconds'] = $timespan;
}
if (count($output) === 1) {
// Only a single output was requested, return it
return array_pop($output);
}
// Return array
return $output;
}
/**
* 格式化 UNIX 时间戳为人易读的字符串
*
* @param int Unix 时间戳
* @param mixed $local 本地时间
*
* @return string 格式化的日期字符串
*/
public static function human($remote, $local = null)
{
$time_diff = (is_null($local) || $local ? time() : $local) - $remote;
$tense = $time_diff < 0 ? 'after' : 'ago';
$time_diff = abs($time_diff);
$chunks = [
[60 * 60 * 24 * 365, 'year'],
[60 * 60 * 24 * 30, 'month'],
[60 * 60 * 24 * 7, 'week'],
[60 * 60 * 24, 'day'],
[60 * 60, 'hour'],
[60, 'minute'],
[1, 'second']
];
$name = 'second';
$count = 0;
for ($i = 0, $j = count($chunks); $i < $j; $i++) {
$seconds = $chunks[$i][0];
$name = $chunks[$i][1];
if (($count = floor($time_diff / $seconds)) != 0) {
break;
}
}
return __("%d $name%s $tense", $count, ($count > 1 ? 's' : ''));
}
/**
* 获取一个基于时间偏移的Unix时间戳
*
* @param string $type 时间类型，默认为day，可选minute,hour,day,week,month,quarter,year
* @param int $offset 时间偏移量 默认为0，正数表示当前type之后，负数表示当前type之前
* @param string $position 时间的开始或结束，默认为begin，可选前(begin,start,first,front)，end
* @param int $year 基准年，默认为null，即以当前年为基准
* @param int $month 基准月，默认为null，即以当前月为基准
* @param int $day 基准天，默认为null，即以当前天为基准
* @param int $hour 基准小时，默认为null，即以当前年小时基准
* @param int $minute 基准分钟，默认为null，即以当前分钟为基准
* @return int 处理后的Unix时间戳
*/
public static function unixtime($type = 'day', $offset = 0, $position = 'begin', $year = null, $month = null, $day = null, $hour = null, $minute = null)
{
$year = is_null($year) ? date('Y') : $year;
$month = is_null($month) ? date('m') : $month;
$day = is_null($day) ? date('d') : $day;
$hour = is_null($hour) ? date('H') : $hour;
$minute = is_null($minute) ? date('i') : $minute;
$position = in_array($position, array('begin', 'start', 'first', 'front'));
$baseTime = mktime(0, 0, 0, $month, $day, $year);
switch ($type) {
case 'minute':
$time = $position ? mktime($hour, $minute + $offset, 0, $month, $day, $year) : mktime($hour, $minute + $offset, 59, $month, $day, $year);
break;
case 'hour':
$time = $position ? mktime($hour + $offset, 0, 0, $month, $day, $year) : mktime($hour + $offset, 59, 59, $month, $day, $year);
break;
case 'day':
$time = $position ? mktime(0, 0, 0, $month, $day + $offset, $year) : mktime(23, 59, 59, $month, $day + $offset, $year);
break;
case 'week':
$weekIndex = date("w", $baseTime);
$time = $position ?
strtotime($offset . " weeks", strtotime(date('Y-m-d', strtotime("-" . ($weekIndex ? $weekIndex - 1 : 6) . " days", $baseTime)))) :
strtotime($offset . " weeks", strtotime(date('Y-m-d 23:59:59', strtotime("+" . (6 - ($weekIndex ? $weekIndex - 1 : 6)) . " days", $baseTime))));
break;
case 'month':
$_timestamp = mktime(0, 0, 0, $month + $offset, 1, $year);
$time = $position ? $_timestamp : mktime(23, 59, 59, $month + $offset, self::days_in_month(date("m", $_timestamp), date("Y", $_timestamp)), $year);
break;
case 'quarter':
$quarter = ceil(date('n', $baseTime) / 3) + $offset;
$month = $quarter * 3;
$offset_year = ceil($month/12) - 1;
$year = $year + $offset_year;
$month = $month - ($offset_year * 12);
$time = $position ?
mktime(0, 0, 0, $month-2, 1, $year) :
mktime(23, 59, 59, $month, self::days_in_month($month, $year), $year);
break;
case 'year':
$time = $position ? mktime(0, 0, 0, 1, 1, $year + $offset) : mktime(23, 59, 59, 12, 31, $year + $offset);
break;
default:
$time = mktime($hour, $minute, 0, $month, $day, $year);
break;
}
return $time;
}
/**
* 获取指定年月拥有的天数
* @param int $month
* @param int $year
* @return false|int|string
*/
public static function days_in_month($month, $year)
{
if (function_exists("cal_days_in_month")) {
return cal_days_in_month(CAL_GREGORIAN, $month, $year);
} else {
return date('t', mktime(0, 0, 0, $month, 1, $year));
}
}
}