/
Time.php
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Time.php
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<?php
/**
* Cake Time utility class file.
*
* PHP 5
*
* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
* Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
*
* Licensed under The MIT License
* For full copyright and license information, please see the LICENSE.txt
* Redistributions of files must retain the above copyright notice.
*
* @copyright Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
* @link http://cakephp.org CakePHP(tm) Project
* @since CakePHP(tm) v 0.10.0.1076
* @license http://www.opensource.org/licenses/mit-license.php MIT License
*/
namespace Cake\Utility;
use Cake\Core\Configure;
/**
* Time Helper class for easy use of time data.
*
* Manipulation of time data.
*
* @link http://book.cakephp.org/2.0/en/core-libraries/helpers/time.html
*/
class Time {
/**
* The format to use when formatting a time using `Cake\Utility\Time::nice()`
*
* The format should use the locale strings as defined in the PHP docs under
* `strftime` (http://php.net/manual/en/function.strftime.php)
*
* @var string
* @see Cake\Utility\Time::format()
*/
public static $niceFormat = '%a, %b %eS %Y, %H:%M';
/**
* The format to use when formatting a time using `Cake\Utility\Time::timeAgoInWords()`
* and the difference is more than `Cake\Utility\Time::$wordEnd`
*
* @var string
* @see Cake\Utility\Time::timeAgoInWords()
*/
public static $wordFormat = 'j/n/y';
/**
* The format to use when formatting a time using `Cake\Utility\Time::niceShort()`
* and the difference is between 3 and 7 days
*
* @var string
* @see Cake\Utility\Time::niceShort()
*/
public static $niceShortFormat = '%B %d, %H:%M';
/**
* The format to use when formatting a time using `Cake\Utility\Time::timeAgoInWords()`
* and the difference is less than `Cake\Utility\Time::$wordEnd`
*
* @var array
* @see Cake\Utility\Time::timeAgoInWords()
*/
public static $wordAccuracy = array(
'year' => "day",
'month' => "day",
'week' => "day",
'day' => "hour",
'hour' => "minute",
'minute' => "minute",
'second' => "second",
);
/**
* The end of relative time telling
*
* @var string
* @see Cake\Utility\Time::timeAgoInWords()
*/
public static $wordEnd = '+1 month';
/**
* Temporary variable containing timestamp value, used internally convertSpecifiers()
*
* @var integer
*/
protected static $_time = null;
/**
* Magic set method for backward compatibility.
*
* Used by TimeHelper to modify static variables in this class
*
* @param string $name Variable name
* @param mixes $value Variable value
* @return void
*/
public function __set($name, $value) {
switch ($name) {
case 'niceFormat':
static::${$name} = $value;
break;
}
}
/**
* Magic set method for backward compatibility.
*
* Used by TimeHelper to get static variables in this class.
*
* @param string $name Variable name
* @return mixed
*/
public function __get($name) {
switch ($name) {
case 'niceFormat':
return static::${$name};
default:
return null;
}
}
/**
* Converts a string representing the format for the function strftime and returns a
* windows safe and i18n aware format.
*
* @param string $format Format with specifiers for strftime function.
* Accepts the special specifier %S which mimics the modifier S for date()
* @param string $time UNIX timestamp
* @return string windows safe and date() function compatible format for strftime
* @link http://book.cakephp.org/2.0/en/core-libraries/helpers/time.html#TimeHelper::convertSpecifiers
*/
public static function convertSpecifiers($format, $time = null) {
if (!$time) {
$time = time();
}
static::$_time = $time;
return preg_replace_callback('/\%(\w+)/', array(__CLASS__, '_translateSpecifier'), $format);
}
/**
* Auxiliary function to translate a matched specifier element from a regular expression into
* a windows safe and i18n aware specifier
*
* @param array $specifier match from regular expression
* @return string converted element
*/
protected static function _translateSpecifier($specifier) {
switch ($specifier[1]) {
case 'a':
$abday = __dc('cake', 'abday', 5);
if (is_array($abday)) {
return $abday[date('w', static::$_time)];
}
break;
case 'A':
$day = __dc('cake', 'day', 5);
if (is_array($day)) {
return $day[date('w', static::$_time)];
}
break;
case 'c':
$format = __dc('cake', 'd_t_fmt', 5);
if ($format !== 'd_t_fmt') {
return static::convertSpecifiers($format, static::$_time);
}
break;
case 'C':
return sprintf("%02d", date('Y', static::$_time) / 100);
case 'D':
return '%m/%d/%y';
case 'e':
if (DS === '/') {
return '%e';
}
$day = date('j', static::$_time);
if ($day < 10) {
$day = ' ' . $day;
}
return $day;
case 'eS' :
return date('jS', static::$_time);
case 'b':
case 'h':
$months = __dc('cake', 'abmon', 5);
if (is_array($months)) {
return $months[date('n', static::$_time) - 1];
}
return '%b';
case 'B':
$months = __dc('cake', 'mon', 5);
if (is_array($months)) {
return $months[date('n', static::$_time) - 1];
}
break;
case 'n':
return "\n";
case 'p':
case 'P':
$default = array('am' => 0, 'pm' => 1);
$meridiem = $default[date('a', static::$_time)];
$format = __dc('cake', 'am_pm', 5);
if (is_array($format)) {
$meridiem = $format[$meridiem];
return ($specifier[1] === 'P') ? strtolower($meridiem) : strtoupper($meridiem);
}
break;
case 'r':
$complete = __dc('cake', 't_fmt_ampm', 5);
if ($complete !== 't_fmt_ampm') {
return str_replace('%p', static::_translateSpecifier(array('%p', 'p')), $complete);
}
break;
case 'R':
return date('H:i', static::$_time);
case 't':
return "\t";
case 'T':
return '%H:%M:%S';
case 'u':
return ($weekDay = date('w', static::$_time)) ? $weekDay : 7;
case 'x':
$format = __dc('cake', 'd_fmt', 5);
if ($format !== 'd_fmt') {
return static::convertSpecifiers($format, static::$_time);
}
break;
case 'X':
$format = __dc('cake', 't_fmt', 5);
if ($format !== 't_fmt') {
return static::convertSpecifiers($format, static::$_time);
}
break;
}
return $specifier[0];
}
/**
* Converts given time (in server's time zone) to user's local time, given his/her timezone.
*
* @param string $serverTime UNIX timestamp
* @param string|DateTimeZone $timezone User's timezone string or DateTimeZone object
* @return integer UNIX timestamp
* @link http://book.cakephp.org/2.0/en/core-libraries/helpers/time.html#TimeHelper::convert
*/
public static function convert($serverTime, $timezone) {
static $serverTimezone = null;
if ($serverTimezone === null || (date_default_timezone_get() !== $serverTimezone->getName())) {
$serverTimezone = new \DateTimeZone(date_default_timezone_get());
}
$serverOffset = $serverTimezone->getOffset(new \DateTime('@' . $serverTime));
$gmtTime = $serverTime - $serverOffset;
if (is_numeric($timezone)) {
$userOffset = $timezone * (60 * 60);
} else {
$timezone = static::timezone($timezone);
$userOffset = $timezone->getOffset(new \DateTime('@' . $gmtTime));
}
$userTime = $gmtTime + $userOffset;
return (int)$userTime;
}
/**
* Returns a timezone object from a string or the user's timezone object
*
* @param string|DateTimeZone $timezone Timezone string or DateTimeZone object
* If null it tries to get timezone from 'Config.timezone' config var
* @return DateTimeZone Timezone object
* @link http://book.cakephp.org/2.0/en/core-libraries/helpers/time.html#TimeHelper::timezone
*/
public static function timezone($timezone = null) {
static $tz = null;
if (is_object($timezone)) {
if ($tz === null || $tz->getName() !== $timezone->getName()) {
$tz = $timezone;
}
} else {
if ($timezone === null) {
$timezone = Configure::read('Config.timezone');
if ($timezone === null) {
$timezone = date_default_timezone_get();
}
}
if ($tz === null || $tz->getName() !== $timezone) {
$tz = new \DateTimeZone($timezone);
}
}
return $tz;
}
/**
* Returns a UNIX timestamp, given either a UNIX timestamp or a valid strtotime() date string.
*
* @param integer|string|DateTime $dateString UNIX timestamp, strtotime() valid string or DateTime object
* @param string|DateTimeZone $timezone Timezone string or DateTimeZone object
* @return string Parsed timestamp
* @link http://book.cakephp.org/2.0/en/core-libraries/helpers/time.html#TimeHelper::fromString
*/
public static function fromString($dateString, $timezone = null) {
if (empty($dateString)) {
return false;
}
$containsDummyDate = (is_string($dateString) && substr($dateString, 0, 10) === '0000-00-00');
if ($containsDummyDate) {
return false;
}
if (is_int($dateString) || is_numeric($dateString)) {
$date = intval($dateString);
} elseif (
$dateString instanceof \DateTime &&
$dateString->getTimezone()->getName() != date_default_timezone_get()
) {
$clone = clone $dateString;
$clone->setTimezone(new \DateTimeZone(date_default_timezone_get()));
$date = (int)$clone->format('U') + $clone->getOffset();
} elseif ($dateString instanceof \DateTime) {
$date = (int)$dateString->format('U');
} else {
$date = strtotime($dateString);
}
if ($date === -1 || empty($date)) {
return false;
}
if ($timezone === null) {
$timezone = Configure::read('Config.timezone');
}
if ($timezone !== null) {
return static::convert($date, $timezone);
}
return $date;
}
/**
* Returns a nicely formatted date string for given Datetime string.
*
* See http://php.net/manual/en/function.strftime.php for information on formatting
* using locale strings.
*
* @param integer|string|DateTime $dateString UNIX timestamp, strtotime() valid string or DateTime object
* @param string|DateTimeZone $timezone Timezone string or DateTimeZone object
* @param string $format The format to use. If null, `TimeHelper::$niceFormat` is used
* @return string Formatted date string
* @link http://book.cakephp.org/2.0/en/core-libraries/helpers/time.html#TimeHelper::nice
*/
public static function nice($dateString = null, $timezone = null, $format = null) {
if (!$dateString) {
$dateString = time();
}
$date = static::fromString($dateString, $timezone);
if (!$format) {
$format = static::$niceFormat;
}
return static::_strftime(static::convertSpecifiers($format, $date), $date);
}
/**
* Returns a formatted descriptive date string for given datetime string.
*
* If the given date is today, the returned string could be "Today, 16:54".
* If the given date is tomorrow, the returned string could be "Tomorrow, 16:54".
* If the given date was yesterday, the returned string could be "Yesterday, 16:54".
* If the given date is within next or last week, the returned string could be "On Thursday, 16:54".
* If $dateString's year is the current year, the returned string does not
* include mention of the year.
*
* @param integer|string|DateTime $dateString UNIX timestamp, strtotime() valid string or DateTime object
* @param string|DateTimeZone $timezone Timezone string or DateTimeZone object
* @return string Described, relative date string
* @link http://book.cakephp.org/2.0/en/core-libraries/helpers/time.html#TimeHelper::niceShort
*/
public static function niceShort($dateString = null, $timezone = null) {
if (!$dateString) {
$dateString = time();
}
$date = static::fromString($dateString, $timezone);
if (static::isToday($dateString, $timezone)) {
return __d('cake', 'Today, %s', static::_strftime("%H:%M", $date));
}
if (static::wasYesterday($dateString, $timezone)) {
return __d('cake', 'Yesterday, %s', static::_strftime("%H:%M", $date));
}
if (static::isTomorrow($dateString, $timezone)) {
return __d('cake', 'Tomorrow, %s', static::_strftime("%H:%M", $date));
}
$d = static::_strftime("%w", $date);
$day = array(
__d('cake', 'Sunday'),
__d('cake', 'Monday'),
__d('cake', 'Tuesday'),
__d('cake', 'Wednesday'),
__d('cake', 'Thursday'),
__d('cake', 'Friday'),
__d('cake', 'Saturday')
);
if (static::wasWithinLast('7 days', $dateString, $timezone)) {
return sprintf('%s %s', $day[$d], static::_strftime(static::$niceShortFormat, $date));
}
if (static::isWithinNext('7 days', $dateString, $timezone)) {
return __d('cake', 'On %s %s', $day[$d], static::_strftime(static::$niceShortFormat, $date));
}
$y = '';
if (!static::isThisYear($date)) {
$y = ' %Y';
}
return static::_strftime(static::convertSpecifiers("%b %eS{$y}, %H:%M", $date), $date);
}
/**
* Returns a partial SQL string to search for all records between two dates.
*
* @param integer|string|DateTime $begin UNIX timestamp, strtotime() valid string or DateTime object
* @param integer|string|DateTime $end UNIX timestamp, strtotime() valid string or DateTime object
* @param string $fieldName Name of database field to compare with
* @param string|DateTimeZone $timezone Timezone string or DateTimeZone object
* @return string Partial SQL string.
* @link http://book.cakephp.org/2.0/en/core-libraries/helpers/time.html#TimeHelper::daysAsSql
*/
public static function daysAsSql($begin, $end, $fieldName, $timezone = null) {
$begin = static::fromString($begin, $timezone);
$end = static::fromString($end, $timezone);
$begin = date('Y-m-d', $begin) . ' 00:00:00';
$end = date('Y-m-d', $end) . ' 23:59:59';
return "($fieldName >= '$begin') AND ($fieldName <= '$end')";
}
/**
* Returns a partial SQL string to search for all records between two times
* occurring on the same day.
*
* @param integer|string|DateTime $dateString UNIX timestamp, strtotime() valid string or DateTime object
* @param string $fieldName Name of database field to compare with
* @param string|DateTimeZone $timezone Timezone string or DateTimeZone object
* @return string Partial SQL string.
* @link http://book.cakephp.org/2.0/en/core-libraries/helpers/time.html#TimeHelper::dayAsSql
*/
public static function dayAsSql($dateString, $fieldName, $timezone = null) {
return static::daysAsSql($dateString, $dateString, $fieldName);
}
/**
* Returns true if given datetime string is today.
*
* @param integer|string|DateTime $dateString UNIX timestamp, strtotime() valid string or DateTime object
* @param string|DateTimeZone $timezone Timezone string or DateTimeZone object
* @return boolean True if datetime string is today
* @link http://book.cakephp.org/2.0/en/core-libraries/helpers/time.html#TimeHelper::isToday
*/
public static function isToday($dateString, $timezone = null) {
$dateTime = new \DateTime;
$timestamp = $dateTime->setTimestamp(static::fromString($dateString, $timezone))
->format('Y-m-d');
$now = $dateTime->setTimestamp(static::fromString('now', $timezone))
->format('Y-m-d');
return $timestamp === $now;
}
/**
* Returns true if given datetime string is in the future.
*
* @param integer|string|DateTime $dateString UNIX timestamp, strtotime() valid string or DateTime object
* @param string|DateTimeZone $timezone Timezone string or DateTimeZone object
* @return boolean True if datetime string is in the future
* @link http://book.cakephp.org/2.0/en/core-libraries/helpers/time.html#TimeHelper::isFuture
*/
public static function isFuture($dateString, $timezone = null) {
$timestamp = static::fromString($dateString, $timezone);
return $timestamp > time();
}
/**
* Returns true if given datetime string is in the past.
*
* @param integer|string|DateTime $dateString UNIX timestamp, strtotime() valid string or DateTime object
* @param string|DateTimeZone $timezone Timezone string or DateTimeZone object
* @return boolean True if datetime string is in the past
* @link http://book.cakephp.org/2.0/en/core-libraries/helpers/time.html#TimeHelper::isPast
*/
public static function isPast($dateString, $timezone = null) {
$timestamp = static::fromString($dateString, $timezone);
return $timestamp < time();
}
/**
* Returns true if given datetime string is within this week.
*
* @param integer|string|DateTime $dateString UNIX timestamp, strtotime() valid string or DateTime object
* @param string|DateTimeZone $timezone Timezone string or DateTimeZone object
* @return boolean True if datetime string is within current week
* @link http://book.cakephp.org/2.0/en/core-libraries/helpers/time.html#TimeHelper::isThisWeek
*/
public static function isThisWeek($dateString, $timezone = null) {
$dateTime = new \DateTime;
$timestamp = $dateTime->setTimestamp(static::fromString($dateString, $timezone))
->format('W o');
$now = $dateTime->setTimestamp(static::fromString('now', $timezone))
->format('W o');
return $timestamp === $now;
}
/**
* Returns true if given datetime string is within this month
*
* @param integer|string|DateTime $dateString UNIX timestamp, strtotime() valid string or DateTime object
* @param string|DateTimeZone $timezone Timezone string or DateTimeZone object
* @return boolean True if datetime string is within current month
* @link http://book.cakephp.org/2.0/en/core-libraries/helpers/time.html#TimeHelper::isThisMonth
*/
public static function isThisMonth($dateString, $timezone = null) {
$dateTime = new \DateTime;
$timestamp = $dateTime->setTimestamp(static::fromString($dateString, $timezone))
->format('m Y');
$now = $dateTime->setTimestamp(static::fromString('now', $timezone))
->format('m Y');
return $timestamp === $now;
}
/**
* Returns true if given datetime string is within current year.
*
* @param integer|string|DateTime $dateString UNIX timestamp, strtotime() valid string or DateTime object
* @param string|DateTimeZone $timezone Timezone string or DateTimeZone object
* @return boolean True if datetime string is within current year
* @link http://book.cakephp.org/2.0/en/core-libraries/helpers/time.html#TimeHelper::isThisYear
*/
public static function isThisYear($dateString, $timezone = null) {
$dateTime = new \DateTime;
$timestamp = $dateTime->setTimestamp(static::fromString($dateString, $timezone))
->format('Y');
$now = $dateTime->setTimestamp(static::fromString('now', $timezone))
->format('Y');
return $timestamp === $now;
}
/**
* Returns true if given datetime string was yesterday.
*
* @param integer|string|DateTime $dateString UNIX timestamp, strtotime() valid string or DateTime object
* @param string|DateTimeZone $timezone Timezone string or DateTimeZone object
* @return boolean True if datetime string was yesterday
* @link http://book.cakephp.org/2.0/en/core-libraries/helpers/time.html#TimeHelper::wasYesterday
*/
public static function wasYesterday($dateString, $timezone = null) {
$dateTime = new \DateTime;
$timestamp = $dateTime->setTimestamp(static::fromString($dateString, $timezone))
->format('Y-m-d');
$yesterday = $dateTime->setTimestamp(static::fromString('yesterday', $timezone))
->format('Y-m-d');
return $timestamp === $yesterday;
}
/**
* Returns true if given datetime string is tomorrow.
*
* @param integer|string|DateTime $dateString UNIX timestamp, strtotime() valid string or DateTime object
* @param string|DateTimeZone $timezone Timezone string or DateTimeZone object
* @return boolean True if datetime string was yesterday
* @link http://book.cakephp.org/2.0/en/core-libraries/helpers/time.html#TimeHelper::isTomorrow
*/
public static function isTomorrow($dateString, $timezone = null) {
$dateTime = new \DateTime;
$timestamp = $dateTime->setTimestamp(static::fromString($dateString, $timezone))
->format('Y-m-d');
$tomorrow = $dateTime->setTimestamp(static::fromString('tomorrow', $timezone))
->format('Y-m-d');
return $timestamp === $tomorrow;
}
/**
* Returns the quarter
*
* @param integer|string|DateTime $dateString UNIX timestamp, strtotime() valid string or DateTime object
* @param boolean $range if true returns a range in Y-m-d format
* @return mixed 1, 2, 3, or 4 quarter of year or array if $range true
* @link http://book.cakephp.org/2.0/en/core-libraries/helpers/time.html#TimeHelper::toQuarter
*/
public static function toQuarter($dateString, $range = false) {
$time = static::fromString($dateString);
$date = ceil(date('m', $time) / 3);
if ($range === false) {
return $date;
}
$year = date('Y', $time);
switch ($date) {
case 1:
return array($year . '-01-01', $year . '-03-31');
case 2:
return array($year . '-04-01', $year . '-06-30');
case 3:
return array($year . '-07-01', $year . '-09-30');
case 4:
return array($year . '-10-01', $year . '-12-31');
}
}
/**
* Returns a UNIX timestamp from a textual datetime description. Wrapper for PHP function strtotime().
*
* @param integer|string|DateTime $dateString UNIX timestamp, strtotime() valid string or DateTime object
* @param string|DateTimeZone $timezone Timezone string or DateTimeZone object
* @return integer Unix timestamp
* @link http://book.cakephp.org/2.0/en/core-libraries/helpers/time.html#TimeHelper::toUnix
*/
public static function toUnix($dateString, $timezone = null) {
return static::fromString($dateString, $timezone);
}
/**
* Returns a formatted date in server's timezone.
*
* If a DateTime object is given or the dateString has a timezone
* segment, the timezone parameter will be ignored.
*
* If no timezone parameter is given and no DateTime object, the passed $dateString will be
* considered to be in the UTC timezone.
*
* @param integer|string|DateTime $dateString UNIX timestamp, strtotime() valid string or DateTime object
* @param string|DateTimeZone $timezone Timezone string or DateTimeZone object
* @param string $format date format string
* @return mixed Formatted date
* @link http://book.cakephp.org/2.0/en/core-libraries/helpers/time.html#TimeHelper::toServer
*/
public static function toServer($dateString, $timezone = null, $format = 'Y-m-d H:i:s') {
if ($timezone === null) {
$timezone = new \DateTimeZone('UTC');
} elseif (is_string($timezone)) {
$timezone = new \DateTimeZone($timezone);
} elseif (!($timezone instanceof \DateTimeZone)) {
return false;
}
if ($dateString instanceof \DateTime) {
$date = $dateString;
} elseif (is_int($dateString) || is_numeric($dateString)) {
$dateString = (int)$dateString;
$date = new \DateTime('@' . $dateString);
$date->setTimezone($timezone);
} else {
$date = new \DateTime($dateString, $timezone);
}
$date->setTimezone(new \DateTimeZone(date_default_timezone_get()));
return $date->format($format);
}
/**
* Returns a date formatted for Atom RSS feeds.
*
* @param string $dateString Datetime string or Unix timestamp
* @param string|DateTimeZone $timezone Timezone string or DateTimeZone object
* @return string Formatted date string
* @link http://book.cakephp.org/2.0/en/core-libraries/helpers/time.html#TimeHelper::toAtom
*/
public static function toAtom($dateString, $timezone = null) {
return date('Y-m-d\TH:i:s\Z', static::fromString($dateString, $timezone));
}
/**
* Formats date for RSS feeds
*
* @param integer|string|DateTime $dateString UNIX timestamp, strtotime() valid string or DateTime object
* @param string|DateTimeZone $timezone Timezone string or DateTimeZone object
* @return string Formatted date string
* @link http://book.cakephp.org/2.0/en/core-libraries/helpers/time.html#TimeHelper::toRSS
*/
public static function toRSS($dateString, $timezone = null) {
$date = static::fromString($dateString, $timezone);
if ($timezone === null) {
return date("r", $date);
}
$userOffset = $timezone;
if (!is_numeric($timezone)) {
if (!is_object($timezone)) {
$timezone = new \DateTimeZone($timezone);
}
$currentDate = new \DateTime('@' . $date);
$currentDate->setTimezone($timezone);
$userOffset = $timezone->getOffset($currentDate) / 60 / 60;
}
$timezone = '+0000';
if ($userOffset != 0) {
$hours = (int)floor(abs($userOffset));
$minutes = (int)(fmod(abs($userOffset), $hours) * 60);
$timezone = ($userOffset < 0 ? '-' : '+') . str_pad($hours, 2, '0', STR_PAD_LEFT) . str_pad($minutes, 2, '0', STR_PAD_LEFT);
}
return date('D, d M Y H:i:s', $date) . ' ' . $timezone;
}
/**
* Returns either a relative or a formatted absolute date depending
* on the difference between the current time and given datetime.
* $datetime should be in a *strtotime* - parsable format, like MySQL's datetime datatype.
*
* ### Options:
*
* - `format` => a fall back format if the relative time is longer than the duration specified by end
* - `accuracy` => Specifies how accurate the date should be described (array)
* - year => The format if years > 0 (default "day")
* - month => The format if months > 0 (default "day")
* - week => The format if weeks > 0 (default "day")
* - day => The format if weeks > 0 (default "hour")
* - hour => The format if hours > 0 (default "minute")
* - minute => The format if minutes > 0 (default "minute")
* - second => The format if seconds > 0 (default "second")
* - `end` => The end of relative time telling
* - `relativeString` => The printf compatible string when outputting relative time
* - `absoluteString` => The printf compatible string when outputting absolute time
* - `userOffset` => Users offset from GMT (in hours) *Deprecated* use timezone intead.
* - `timezone` => The user timezone the timestamp should be formatted in.
*
* Relative dates look something like this:
*
* - 3 weeks, 4 days ago
* - 15 seconds ago
*
* Default date formatting is d/m/yy e.g: on 18/2/09
*
* The returned string includes 'ago' or 'on' and assumes you'll properly add a word
* like 'Posted ' before the function output.
*
* NOTE: If the difference is one week or more, the lowest level of accuracy is day
*
* @param integer|string|DateTime $dateTime Datetime UNIX timestamp, strtotime() valid string or DateTime object
* @param array $options Default format if timestamp is used in $dateString
* @return string Relative time string.
* @link http://book.cakephp.org/2.0/en/core-libraries/helpers/time.html#TimeHelper::timeAgoInWords
*/
public static function timeAgoInWords($dateTime, $options = array()) {
$timezone = null;
$format = static::$wordFormat;
$end = static::$wordEnd;
$relativeString = __d('cake', '%s ago');
$absoluteString = __d('cake', 'on %s');
$accuracy = static::$wordAccuracy;
if (is_array($options)) {
if (isset($options['timezone'])) {
$timezone = $options['timezone'];
} elseif (isset($options['userOffset'])) {
$timezone = $options['userOffset'];
}
if (isset($options['accuracy'])) {
if (is_array($options['accuracy'])) {
$accuracy = array_merge($accuracy, $options['accuracy']);
} else {
foreach ($accuracy as $key => $level) {
$accuracy[$key] = $options['accuracy'];
}
}
}
if (isset($options['format'])) {
$format = $options['format'];
}
if (isset($options['end'])) {
$end = $options['end'];
}
if (isset($options['relativeString'])) {
$relativeString = $options['relativeString'];
unset($options['relativeString']);
}
if (isset($options['absoluteString'])) {
$absoluteString = $options['absoluteString'];
unset($options['absoluteString']);
}
unset($options['end'], $options['format']);
} else {
$format = $options;
}
$now = static::fromString(time(), $timezone);
$inSeconds = static::fromString($dateTime, $timezone);
$backwards = ($inSeconds > $now);
$futureTime = $now;
$pastTime = $inSeconds;
if ($backwards) {
$futureTime = $inSeconds;
$pastTime = $now;
}
$diff = $futureTime - $pastTime;
if (!$diff) {
return __d('cake', 'just now', 'just now');
}
if ($diff > abs($now - self::fromString($end))) {
return sprintf($absoluteString, date($format, $inSeconds));
}
// If more than a week, then take into account the length of months
if ($diff >= 604800) {
list($future['H'], $future['i'], $future['s'], $future['d'], $future['m'], $future['Y']) = explode('/', date('H/i/s/d/m/Y', $futureTime));
list($past['H'], $past['i'], $past['s'], $past['d'], $past['m'], $past['Y']) = explode('/', date('H/i/s/d/m/Y', $pastTime));
$years = $months = $weeks = $days = $hours = $minutes = $seconds = 0;
$years = $future['Y'] - $past['Y'];
$months = $future['m'] + ((12 * $years) - $past['m']);
if ($months >= 12) {
$years = floor($months / 12);
$months = $months - ($years * 12);
}
if ($future['m'] < $past['m'] && $future['Y'] - $past['Y'] === 1) {
$years--;
}
if ($future['d'] >= $past['d']) {
$days = $future['d'] - $past['d'];
} else {
$daysInPastMonth = date('t', $pastTime);
$daysInFutureMonth = date('t', mktime(0, 0, 0, $future['m'] - 1, 1, $future['Y']));
if (!$backwards) {
$days = ($daysInPastMonth - $past['d']) + $future['d'];
} else {
$days = ($daysInFutureMonth - $past['d']) + $future['d'];
}
if ($future['m'] != $past['m']) {
$months--;
}
}
if (!$months && $years >= 1 && $diff < ($years * 31536000)) {
$months = 11;
$years--;
}
if ($months >= 12) {
$years = $years + 1;
$months = $months - 12;
}
if ($days >= 7) {
$weeks = floor($days / 7);
$days = $days - ($weeks * 7);
}
} else {
$years = $months = $weeks = 0;
$days = floor($diff / 86400);
$diff = $diff - ($days * 86400);
$hours = floor($diff / 3600);
$diff = $diff - ($hours * 3600);
$minutes = floor($diff / 60);
$diff = $diff - ($minutes * 60);
$seconds = $diff;
}
$fWord = $accuracy['second'];
if ($years > 0) {
$fWord = $accuracy['year'];
} elseif (abs($months) > 0) {
$fWord = $accuracy['month'];
} elseif (abs($weeks) > 0) {
$fWord = $accuracy['week'];
} elseif (abs($days) > 0) {
$fWord = $accuracy['day'];
} elseif (abs($hours) > 0) {
$fWord = $accuracy['hour'];
} elseif (abs($minutes) > 0) {
$fWord = $accuracy['minute'];
}
$fNum = str_replace(array('year', 'month', 'week', 'day', 'hour', 'minute', 'second'), array(1, 2, 3, 4, 5, 6, 7), $fWord);
$relativeDate = '';
if ($fNum >= 1 && $years > 0) {
$relativeDate .= ($relativeDate ? ', ' : '') . __dn('cake', '%d year', '%d years', $years, $years);
}
if ($fNum >= 2 && $months > 0) {
$relativeDate .= ($relativeDate ? ', ' : '') . __dn('cake', '%d month', '%d months', $months, $months);
}
if ($fNum >= 3 && $weeks > 0) {
$relativeDate .= ($relativeDate ? ', ' : '') . __dn('cake', '%d week', '%d weeks', $weeks, $weeks);
}
if ($fNum >= 4 && $days > 0) {
$relativeDate .= ($relativeDate ? ', ' : '') . __dn('cake', '%d day', '%d days', $days, $days);
}
if ($fNum >= 5 && $hours > 0) {
$relativeDate .= ($relativeDate ? ', ' : '') . __dn('cake', '%d hour', '%d hours', $hours, $hours);
}
if ($fNum >= 6 && $minutes > 0) {
$relativeDate .= ($relativeDate ? ', ' : '') . __dn('cake', '%d minute', '%d minutes', $minutes, $minutes);
}
if ($fNum >= 7 && $seconds > 0) {
$relativeDate .= ($relativeDate ? ', ' : '') . __dn('cake', '%d second', '%d seconds', $seconds, $seconds);
}
// When time has passed
if (!$backwards && $relativeDate) {
return sprintf($relativeString, $relativeDate);
}
if (!$backwards) {
$aboutAgo = array(
'second' => __d('cake', 'about a second ago'),
'minute' => __d('cake', 'about a minute ago'),
'hour' => __d('cake', 'about an hour ago'),
'day' => __d('cake', 'about a day ago'),
'week' => __d('cake', 'about a week ago'),
'year' => __d('cake', 'about a year ago')
);
return $aboutAgo[$fWord];
}
// When time is to come
if (!$relativeDate) {
$aboutIn = array(
'second' => __d('cake', 'in about a second'),
'minute' => __d('cake', 'in about a minute'),
'hour' => __d('cake', 'in about an hour'),
'day' => __d('cake', 'in about a day'),
'week' => __d('cake', 'in about a week'),
'year' => __d('cake', 'in about a year')
);
return $aboutIn[$fWord];
}
return $relativeDate;
}
/**
* Returns true if specified datetime was within the interval specified, else false.
*
* @param string|integer $timeInterval the numeric value with space then time type.
* Example of valid types: 6 hours, 2 days, 1 minute.
* @param integer|string|DateTime $dateString UNIX timestamp, strtotime() valid string or DateTime object
* @param string|DateTimeZone $timezone Timezone string or DateTimeZone object
* @return boolean
* @link http://book.cakephp.org/2.0/en/core-libraries/helpers/time.html#TimeHelper::wasWithinLast
*/
public static function wasWithinLast($timeInterval, $dateString, $timezone = null) {
$tmp = str_replace(' ', '', $timeInterval);
if (is_numeric($tmp)) {
$timeInterval = $tmp . ' ' . __d('cake', 'days');
}
$date = static::fromString($dateString, $timezone);
$interval = static::fromString('-' . $timeInterval);
$now = static::fromString('now', $timezone);
return $date >= $interval && $date <= $now;
}
/**
* Returns true if specified datetime is within the interval specified, else false.
*
* @param string|integer $timeInterval the numeric value with space then time type.
* Example of valid types: 6 hours, 2 days, 1 minute.
* @param integer|string|DateTime $dateString UNIX timestamp, strtotime() valid string or DateTime object
* @param string|DateTimeZone $timezone Timezone string or DateTimeZone object
* @return boolean
*/
public static function isWithinNext($timeInterval, $dateString, $timezone = null) {
$tmp = str_replace(' ', '', $timeInterval);
if (is_numeric($tmp)) {
$timeInterval = $tmp . ' ' . __d('cake', 'days');
}
$date = static::fromString($dateString, $timezone);
$interval = static::fromString('+' . $timeInterval);
$now = static::fromString('now', $timezone);
return $date <= $interval && $date >= $now;
}
/**
* Returns gmt as a UNIX timestamp.
*
* @param integer|string|DateTime $dateString UNIX timestamp, strtotime() valid string or DateTime object
* @return integer UNIX timestamp
* @link http://book.cakephp.org/2.0/en/core-libraries/helpers/time.html#TimeHelper::gmt