对于我的web应用程序，我使用一个PHP类来对齐以各种格式使用的日期和时间，如邮票和日期。我的应用程序是一个网络爬虫，也是一个自定义的Twitter应用程序。两者都需要每日报告，这使得准确的计时至关重要。更重要的是，我在整个应用程序中使用Unix时间戳格式来存储数据库。这使计算对我来说更容易。系统设计是通过设置日期的Unix时间戳00:00:00小时来为单个日期创建时间戳。例如，我今天称之为Stamp00。
我的问题是，我无法让我的类产生我期望的结果。它似乎在时间（）、日期（）等函数之间变化，而且在大多数时候对我来说都是随机的。我在偏离的地方纠正它，但对这种解决方案不满意。
PS。我创建了一个组件，用于替换控制器类中现有的代码片段。
<?php
define(DEBUG,1);
class DateTimeComponent {
private $date;
private $hour;
private $day;
private $timezone;
private $timeStamp;
private $nowDateTime;
private $todayDate;
private $todayDate00;
private $todayStamp00;
public function __construct() {
# set date object
$this->__setDateTime();
}
private function __setDateTime() {
# Date setting object style
$date = new DateTime('', new DateTimeZone('Europe/Amsterdam'));
# set datetime for now
$this->nowDateTime = $date->format('Y-m-d H:i:s');
if(DEBUG) echo "this->nowDateTime: ".$this->nowDateTime.PHP_EOL;
# add timezone offset +1 for local time Amsterdam
date_add($date, date_interval_create_from_date_string('1 hours'));
$this->timeStamp = $date->getTimestamp();
if(DEBUG) echo "this->Timestamp now: ".$this->timeStamp. "'n";
# set date today 00:00:00 hours
date_time_set($date, 0, 0, 0);
$this->todayDate00 = $date->format('Y-m-d H:i:s');
if(DEBUG) echo "this->Today 00:00:00: ".$this->todayDate00.PHP_EOL;
# set date today 00:00:00 hours
date_add($date, date_interval_create_from_date_string('1 hours'));
$this->todayStamp00 = $date->getTimestamp();
if(DEBUG) echo "this->TodayStamp 00:00:00: ".$this->todayStamp00.PHP_EOL;
$this->date = $date;
return;
}
public function __timestamp() {
return $this->timeStamp;
}
public function __nowDateTime() {
return $this->nowDateTime;
}
public function __todayStamp00() {
return $this->todayStamp00;
}
public function __todayDate00() {
return $this->todayDate00;
}
public function __dateXDaysFromNow($op='substract',$days='1') {
# calculate plus/minus days from now. Returns daydate00:00:00
$date = $this->date;
$datestring = $days." days";
if($op == "add") {
date_add($date,date_interval_create_from_date_string($datestring));
}
else {
date_sub($date,date_interval_create_from_date_string($datestring));
}
date_time_set($date, 0, 0, 0);
$day = $date->format('Y-m-d H:i:s');
return $day;
}
}
?>
我已经把它变成了对我可用的东西，因为目前我只使用1个时区，现在是+01:00，这与这个更新的类一起工作。它需要更多的代码行，使其可用于分钟数不为00的区域（+00:30不起作用，01:00只增加1小时），以及与脚本时区有负差异的区域。那满足我的需要就好了。当冬天来临时，Ill增加了一个功能来补偿荷兰当地的夏令时或夏令时。
<?php
define('DEBUG',1);
/*
* Class DateTimeComponent
* Use __contruct('timezone') with an timezone_name from timezones array
* loads the offset, compares script timezone offset with time choosen.
* If timezone choosen not is timezone script it sets script to desired.
*
* TO DO:
* only works with zones in +00..N zones and ignores the minutes.
* Needs convert from +00:00 and -00:00 (gmt_diff) to decimal +/- hours.
*
*/
class DateTimeComponent {
private $date;
private $hour=3600;
private $day=84600;
private $timezone;
private $timezones;
private $timeStamp;
private $nowDateTime;
private $todayDate00;
private $todayStamp00;
private $gmt_diff;
private $tz_offset;
public function __construct($tz='Europe/Berlin') {
# load GMT time_zones array
$this->timezones = $this->setTimezones();
# get/set the desired zone + offset by name
foreach($this->timezones as $i=>$timezone) {
if($timezone['timezone_name'] == $tz) {
$this->timezone = $timezone['timezone_name'];
$this->gmt_diff = $timezone['gmt_diff'];
$operator = substr($this->gmt_diff,0,1);
if(substr($this->gmt_diff,1,1) == '0') {
$this->tz_offset = $operator."".substr($this->gmt_diff,2,1);
}
else {
$this->tz_offset = substr($this->gmt_diff,1,2);
}
}
}
$this->date = $this->__setDateTime();
# define('DEBUG',1)
if(DEBUG) $this->__debug();
}
public function __timestamp() {
return $this->timeStamp;
}
public function __nowDateTime() {
return $this->nowDateTime;
}
public function __todayStamp00() {
return $this->todayStamp00;
}
public function __todayDate00() {
return $this->todayDate00;
}
public function __dateXDaysFromNow($op='substract',$days='1') {
# calculate plus/minus days from now. Returns daydate00:00:00
$date = $this->date;
$datestring = $days." days";
if($op == "add") {
date_add($date,date_interval_create_from_date_string($datestring));
}
else {
date_sub($date,date_interval_create_from_date_string($datestring));
}
date_time_set($date, 0, 0, 0);
$day = $date->format('Y-m-d H:i:s');
return $day;
}
private function __setDateTime() {
# Date setting object style
$date = new DateTime('', new DateTimeZone($this->timezone));
$this->nowDateTime = $date->format('Y-m-d H:i:s');
# compare real / desired
$seconds = date_offset_get($date);
$currentOffset = ($seconds / 3600);
if($this->tz_offset != $currentOffset)
{
$offset = "$currentOffset hours";
}else {
$offset = "$this->tz_offset hours";
}
#set offset to disered
date_add($date, date_interval_create_from_date_string($offset));
$this->timeStamp = ($date->getTimestamp());
# set date/stamp today etc
date_time_set($date, 0, 0, 0);
$this->todayDate00 = $date->format('Y-m-d H:i:s');
$this->todayStamp00 = strtotime($date->format('Y-m-d H:i:s'));
return $date;
}
private function __debug(){
$errMsg = "<pre>DEBUG INFO DateTimeComponent".PHP_EOL;
$errMsg .= "date(obj) datetime: ".$this->nowDateTime.PHP_EOL;
$errMsg .= "date(obj) current datetime".$this->nowDateTime.PHP_EOL;
$errMsg .= "date(obj) current timestamp: ".$this->timeStamp.PHP_EOL;
$errMsg .= "date(obj) today 00:00:00 hours: ".$this->todayDate00.PHP_EOL;
$errMsg .= "date(obj) today 00:00:00 hours: ".$this->todayStamp00.PHP_EOL;
$errMsg .= "date(obj) yesterday 00:00:00 hours: ".$yesterday00 = $this->__dateXDaysFromNow().PHP_EOL;
$errMsg .= "yesterday 00:00:00 hours stamp: ". strtotime($yesterday00) .PHP_EOL;
echo $errMsg."</pre>".PHP_EOL;
return;
}
private function setTimezones() {
$timezones = array(
array('id' => '1','timezone_name' => 'Pacific/Midway','timezone_label' => '(GMT-11:00) Midway Island, Samoa','gmt_diff' => '-11:00'),
array('id' => '2','timezone_name' => 'America/Adak','timezone_label' => '(GMT-10:00) Hawaii-Aleutian','gmt_diff' => '-10:00'),
array('id' => '3','timezone_name' => 'Etc/GMT+10','timezone_label' => '(GMT-10:00) Hawaii','gmt_diff' => '-10:00'),
array('id' => '4','timezone_name' => 'Pacific/Marquesas','timezone_label' => '(GMT-09:30) Marquesas Islands','gmt_diff' => '-09:30'),
array('id' => '5','timezone_name' => 'Pacific/Gambier','timezone_label' => '(GMT-09:00) Gambier Islands','gmt_diff' => '-09:00'),
array('id' => '6','timezone_name' => 'America/Anchorage','timezone_label' => '(GMT-09:00) Alaska','gmt_diff' => '-09:00'),
array('id' => '7','timezone_name' => 'America/Ensenada','timezone_label' => '(GMT-08:00) Tijuana, Baja California','gmt_diff' => '-08:00'),
array('id' => '8','timezone_name' => 'Etc/GMT+8','timezone_label' => '(GMT-08:00) Pitcairn Islands','gmt_diff' => '-08:00'),
array('id' => '9','timezone_name' => 'America/Los_Angeles','timezone_label' => '(GMT-08:00) Pacific Time (US & Canada)','gmt_diff' => '-08:00'),
array('id' => '10','timezone_name' => 'America/Denver','timezone_label' => '(GMT-07:00) Mountain Time (US & Canada)','gmt_diff' => '-07:00'),
array('id' => '11','timezone_name' => 'America/Chihuahua','timezone_label' => '(GMT-07:00) Chihuahua, La Paz, Mazatlan','gmt_diff' => '-07:00'),
array('id' => '12','timezone_name' => 'America/Dawson_Creek','timezone_label' => '(GMT-07:00) Arizona','gmt_diff' => '-07:00'),
array('id' => '13','timezone_name' => 'America/Belize','timezone_label' => '(GMT-06:00) Saskatchewan, Central America','gmt_diff' => '-06:00'),
array('id' => '14','timezone_name' => 'America/Cancun','timezone_label' => '(GMT-06:00) Guadalajara, Mexico City, Monterrey','gmt_diff' => '-06:00'),
array('id' => '15','timezone_name' => 'Chile/EasterIsland','timezone_label' => '(GMT-06:00) Easter Island','gmt_diff' => '-06:00'),
array('id' => '16','timezone_name' => 'America/Chicago','timezone_label' => '(GMT-06:00) Central Time (US & Canada)','gmt_diff' => '-06:00'),
array('id' => '17','timezone_name' => 'America/New_York','timezone_label' => '(GMT-05:00) Eastern Time (US & Canada)','gmt_diff' => '-05:00'),
array('id' => '18','timezone_name' => 'America/Havana','timezone_label' => '(GMT-05:00) Cuba','gmt_diff' => '-05:00'),
array('id' => '19','timezone_name' => 'America/Bogota','timezone_label' => '(GMT-05:00) Bogota, Lima, Quito, Rio Branco','gmt_diff' => '-05:00'),
array('id' => '20','timezone_name' => 'America/Caracas','timezone_label' => '(GMT-04:30) Caracas','gmt_diff' => '-04:30'),
array('id' => '21','timezone_name' => 'America/Santiago','timezone_label' => '(GMT-04:00) Santiago','gmt_diff' => '-04:00'),
array('id' => '22','timezone_name' => 'America/La_Paz','timezone_label' => '(GMT-04:00) La Paz','gmt_diff' => '-04:00'),
array('id' => '23','timezone_name' => 'Atlantic/Stanley','timezone_label' => '(GMT-04:00) Faukland Islands','gmt_diff' => '-04:00'),
array('id' => '24','timezone_name' => 'America/Campo_Grande','timezone_label' => '(GMT-04:00) Brazil','gmt_diff' => '-04:00'),
array('id' => '25','timezone_name' => 'America/Goose_Bay','timezone_label' => '(GMT-04:00) Atlantic Time (Goose Bay)','gmt_diff' => '-04:00'),
array('id' => '26','timezone_name' => 'America/Glace_Bay','timezone_label' => '(GMT-04:00) Atlantic Time (Canada)','gmt_diff' => '-04:00'),
array('id' => '27','timezone_name' => 'America/St_Johns','timezone_label' => '(GMT-03:30) Newfoundland','gmt_diff' => '-03:30'),
array('id' => '28','timezone_name' => 'America/Araguaina','timezone_label' => '(GMT-03:00) UTC-3','gmt_diff' => '-03:00'),
array('id' => '29','timezone_name' => 'America/Montevideo','timezone_label' => '(GMT-03:00) Montevideo','gmt_diff' => '-03:00'),
array('id' => '30','timezone_name' => 'America/Miquelon','timezone_label' => '(GMT-03:00) Miquelon, St. Pierre','gmt_diff' => '-03:00'),
array('id' => '31','timezone_name' => 'America/Godthab','timezone_label' => '(GMT-03:00) Greenland','gmt_diff' => '-03:00'),
array('id' => '32','timezone_name' => 'America/Argentina/Buenos_Aires','timezone_label' => '(GMT-03:00) Buenos Aires','gmt_diff' => '-03:00'),
array('id' => '33','timezone_name' => 'America/Sao_Paulo','timezone_label' => '(GMT-03:00) Brasilia','gmt_diff' => '-03:00'),
array('id' => '34','timezone_name' => 'America/Noronha','timezone_label' => '(GMT-02:00) Mid-Atlantic','gmt_diff' => '-02:00'),
array('id' => '35','timezone_name' => 'Atlantic/Cape_Verde','timezone_label' => '(GMT-01:00) Cape Verde Is.','gmt_diff' => '-01:00'),
array('id' => '36','timezone_name' => 'Atlantic/Azores','timezone_label' => '(GMT-01:00) Azores','gmt_diff' => '-01:00'),
array('id' => '37','timezone_name' => 'Europe/Belfast','timezone_label' => '(GMT) Greenwich Mean Time : Belfast','gmt_diff' => '+00:00'),
array('id' => '38','timezone_name' => 'Europe/Dublin','timezone_label' => '(GMT) Greenwich Mean Time : Dublin','gmt_diff' => '+00:00'),
array('id' => '39','timezone_name' => 'Europe/Lisbon','timezone_label' => '(GMT) Greenwich Mean Time : Lisbon','gmt_diff' => '+00:00'),
array('id' => '40','timezone_name' => 'Europe/London','timezone_label' => '(GMT) Greenwich Mean Time : London','gmt_diff' => '+00:00'),
array('id' => '41','timezone_name' => 'Africa/Abidjan','timezone_label' => '(GMT) Monrovia, Reykjavik','gmt_diff' => '+00:00'),
array('id' => '42','timezone_name' => 'Europe/Berlin','timezone_label' => '(GMT+01:00) Amsterdam, Berlin, Bern, Rome, Stockholm, Vienna','gmt_diff' => '+01:00'),
array('id' => '43','timezone_name' => 'Europe/Belgrade','timezone_label' => '(GMT+01:00) Belgrade, Bratislava, Budapest, Ljubljana, Prague','gmt_diff' => '+01:00'),
array('id' => '44','timezone_name' => 'Europe/Brussels','timezone_label' => '(GMT+01:00) Brussels, Copenhagen, Madrid, Paris','gmt_diff' => '+01:00'),
array('id' => '45','timezone_name' => 'Africa/Algiers','timezone_label' => '(GMT+01:00) West Central Africa','gmt_diff' => '+01:00'),
array('id' => '46','timezone_name' => 'Africa/Windhoek','timezone_label' => '(GMT+01:00) Windhoek','gmt_diff' => '+01:00'),
array('id' => '47','timezone_name' => 'Asia/Beirut','timezone_label' => '(GMT+02:00) Beirut','gmt_diff' => '+02:00'),
array('id' => '48','timezone_name' => 'Africa/Cairo','timezone_label' => '(GMT+02:00) Cairo','gmt_diff' => '+02:00'),
array('id' => '49','timezone_name' => 'Asia/Gaza','timezone_label' => '(GMT+02:00) Gaza','gmt_diff' => '+02:00'),
array('id' => '50','timezone_name' => 'Africa/Blantyre','timezone_label' => '(GMT+02:00) Harare, Pretoria','gmt_diff' => '+02:00'),
array('id' => '51','timezone_name' => 'Asia/Jerusalem','timezone_label' => '(GMT+02:00) Jerusalem','gmt_diff' => '+02:00'),
array('id' => '52','timezone_name' => 'Europe/Minsk','timezone_label' => '(GMT+02:00) Minsk','gmt_diff' => '+02:00'),
array('id' => '53','timezone_name' => 'Asia/Damascus','timezone_label' => '(GMT+02:00) Syria','gmt_diff' => '+02:00'),
array('id' => '54','timezone_name' => 'Europe/Moscow','timezone_label' => '(GMT+03:00) Moscow, St. Petersburg, Volgograd','gmt_diff' => '+03:00'),
array('id' => '55','timezone_name' => 'Africa/Addis_Ababa','timezone_label' => '(GMT+03:00) Nairobi','gmt_diff' => '+03:00'),
array('id' => '56','timezone_name' => 'Asia/Tehran','timezone_label' => '(GMT+03:30) Tehran','gmt_diff' => '+03:30'),
array('id' => '57','timezone_name' => 'Asia/Dubai','timezone_label' => '(GMT+04:00) Abu Dhabi, Muscat','gmt_diff' => '+04:00'),
array('id' => '58','timezone_name' => 'Asia/Yerevan','timezone_label' => '(GMT+04:00) Yerevan','gmt_diff' => '+04:00'),
array('id' => '59','timezone_name' => 'Asia/Kabul','timezone_label' => '(GMT+04:30) Kabul','gmt_diff' => '+04:30'),
array('id' => '60','timezone_name' => 'Asia/Yekaterinburg','timezone_label' => '(GMT+05:00) Ekaterinburg','gmt_diff' => '+05:00'),
array('id' => '61','timezone_name' => 'Asia/Tashkent','timezone_label' => '(GMT+05:00) Tashkent','gmt_diff' => '+05:00'),
array('id' => '62','timezone_name' => 'Asia/Kolkata','timezone_label' => '(GMT+05:30) Chennai, Kolkata, Mumbai, New Delhi','gmt_diff' => '+05:30'),
array('id' => '63','timezone_name' => 'Asia/Katmandu','timezone_label' => '(GMT+05:45) Kathmandu','gmt_diff' => '+05:45'),
array('id' => '64','timezone_name' => 'Asia/Dhaka','timezone_label' => '(GMT+06:00) Astana, Dhaka','gmt_diff' => '+06:00'),
array('id' => '65','timezone_name' => 'Asia/Novosibirsk','timezone_label' => '(GMT+06:00) Novosibirsk','gmt_diff' => '+06:00'),
array('id' => '66','timezone_name' => 'Asia/Rangoon','timezone_label' => '(GMT+06:30) Yangon (Rangoon)','gmt_diff' => '+06:30'),
array('id' => '67','timezone_name' => 'Asia/Bangkok','timezone_label' => '(GMT+07:00) Bangkok, Hanoi, Jakarta','gmt_diff' => '+07:00'),
array('id' => '68','timezone_name' => 'Asia/Krasnoyarsk','timezone_label' => '(GMT+07:00) Krasnoyarsk','gmt_diff' => '+07:00'),
array('id' => '69','timezone_name' => 'Asia/Hong_Kong','timezone_label' => '(GMT+08:00) Beijing, Chongqing, Hong Kong, Urumqi','gmt_diff' => '+08:00'),
array('id' => '70','timezone_name' => 'Asia/Irkutsk','timezone_label' => '(GMT+08:00) Irkutsk, Ulaan Bataar','gmt_diff' => '+08:00'),
array('id' => '71','timezone_name' => 'Australia/Perth','timezone_label' => '(GMT+08:00) Perth','gmt_diff' => '+08:00'),
array('id' => '72','timezone_name' => 'Australia/Eucla','timezone_label' => '(GMT+08:45) Eucla','gmt_diff' => '+08:45'),
array('id' => '73','timezone_name' => 'Asia/Tokyo','timezone_label' => '(GMT+09:00) Osaka, Sapporo, Tokyo','gmt_diff' => '+09:00'),
array('id' => '74','timezone_name' => 'Asia/Seoul','timezone_label' => '(GMT+09:00) Seoul','gmt_diff' => '+09:00'),
array('id' => '75','timezone_name' => 'Asia/Yakutsk','timezone_label' => '(GMT+09:00) Yakutsk','gmt_diff' => '+09:00'),
array('id' => '76','timezone_name' => 'Australia/Adelaide','timezone_label' => '(GMT+09:30) Adelaide','gmt_diff' => '+09:30'),
array('id' => '77','timezone_name' => 'Australia/Darwin','timezone_label' => '(GMT+09:30) Darwin','gmt_diff' => '+09:30'),
array('id' => '78','timezone_name' => 'Australia/Brisbane','timezone_label' => '(GMT+10:00) Brisbane','gmt_diff' => '+10:00'),
array('id' => '79','timezone_name' => 'Australia/Hobart','timezone_label' => '(GMT+10:00) Hobart','gmt_diff' => '+10:00'),
array('id' => '80','timezone_name' => 'Asia/Vladivostok','timezone_label' => '(GMT+10:00) Vladivostok','gmt_diff' => '+10:00'),
array('id' => '81','timezone_name' => 'Australia/Lord_Howe','timezone_label' => '(GMT+10:30) Lord Howe Island','gmt_diff' => '+10:30'),
array('id' => '82','timezone_name' => 'Etc/GMT-11','timezone_label' => '(GMT+11:00) Solomon Is., New Caledonia','gmt_diff' => '+11:00'),
array('id' => '83','timezone_name' => 'Asia/Magadan','timezone_label' => '(GMT+11:00) Magadan','gmt_diff' => '+11:00'),
array('id' => '84','timezone_name' => 'Pacific/Norfolk','timezone_label' => '(GMT+11:30) Norfolk Island','gmt_diff' => '+11:30'),
array('id' => '85','timezone_name' => 'Asia/Anadyr','timezone_label' => '(GMT+12:00) Anadyr, Kamchatka','gmt_diff' => '+12:00'),
array('id' => '86','timezone_name' => 'Pacific/Auckland','timezone_label' => '(GMT+12:00) Auckland, Wellington','gmt_diff' => '+12:00'),
array('id' => '87','timezone_name' => 'Etc/GMT-12','timezone_label' => '(GMT+12:00) Fiji, Kamchatka, Marshall Is.','gmt_diff' => '+12:00'),
array('id' => '88','timezone_name' => 'Pacific/Chatham','timezone_label' => '(GMT+12:45) Chatham Islands','gmt_diff' => '+12:45'),
array('id' => '89','timezone_name' => 'Pacific/Tongatapu','timezone_label' => '(GMT+13:00) Nuku''alofa','gmt_diff' => '+13:00'),
array('id' => '90','timezone_name' => 'Pacific/Kiritimati','timezone_label' => '(GMT+14:00) Kiritimati','gmt_diff' => '+14:00')
);
return $timezones;
}
}
?>