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<?php
/**
* @package Foundry
* @copyright Copyright (C) Stack Ideas Sdn Bhd. All rights reserved.
* @license GNU/GPL, see LICENSE.php
* Foundry is free software. This version may have been modified pursuant
* to the GNU General Public License, and as distributed it includes or
* is derivative of works licensed under the GNU General Public License or
* other free or open source software licenses.
* See COPYRIGHT.php for copyright notices and details.
*/
namespace Foundry\Libraries;
defined('_JEXEC') or die('Unauthorized Access');
class DateHelper
{
/**
* Converts legacy date (strftime) format into the new (date) format
*
* @since 1.0.0
* @access public
*/
public static function updateLegacyFormat($format)
{
$mapping = [
// day
'%a' => 'D', // 00, Sun through Sat
'%A' => 'l', // 01, Sunday through Saturday
'%d' => 'd', // 02, 01 through 31
'%e' => 'j', // 03, 1 through 31
'%j' => 'z', // 04, 001 through 366
'%u' => 'N', // 05, 1 for Monday through 7 for Sunday
'%w' => 'w', // 06, 1 for Sunday through 7 for Saturday
// week
'%U' => 'W', // 07, Week number of the year with Sunday as the start of the week
'%V' => 'W', // 08, ISO-8601:1988 week number of the year with Monday as the start of the week, with at least 4 weekdays as the first week
'%W' => 'W', // 09, Week number of the year with Monday as the start of the week
// month
'%b' => 'M', // 10, Jan through Dec
'%B' => 'F', // 11, January through December
'%h' => 'M', // 12, Jan through Dec, alias of %b
'%m' => 'm', // 13, 01 for January through 12 for December
// year
'%C' => '', // 14, 2 digit of the century, year divided by 100, truncated to an integer, 19 for 20th Century
'%g' => 'y', // 15, 2 digit of the year going by ISO-8601:1988 (%V), 09 for 2009
'%G' => 'o', // 16, 4 digit version of %g
'%y' => 'y', // 17, 2 digit of the year
'%Y' => 'Y', // 18, 4 digit version of %y
// time
'%H' => 'H', // 19, hour, 00 through 23
'%I' => 'h', // 20, hour, 01 through 12
'%l' => 'g', // 21, hour, 1 through 12
'%M' => 'i', // 22, minute, 00 through 59
'%p' => 'A', // 23, AM or PM
'%P' => 'a', // 24, am or pm
'%r' => 'h:i:s A', // 25, = %I:%M:%S %p, 09:34:17 PM
'%R' => 'H:i', // 26, = %H:%M, 21:34
'%S' => 's', // 27, second, 00 through 59
'%T' => 'H:i:s', // 28, = %H:%M:%S, 21:34:17
'%X' => 'H:i:s', // 29, Based on locale without date
'%z' => 'O', // 30, Either the time zone offset from UTC or the abbreviation (depends on operating system)
'%Z' => 'T', // 31, The time zone offset/abbreviation option NOT given by %z (depends on operating system)
// date stamps
'%c' => 'Y-m-d H:i:s', // 32, Date and time stamps based on locale
'%D' => 'm/d/y', // 33, = %m/%d/%y, 02/05/09
'%F' => 'Y-m-d', // 34, = %Y-%m-%d, 2009-02-05
'%s' => '', // 35, Unix timestamp, same as time()
'%x' => 'Y-m-d', // 36, Date stamps based on locale
// misc
'%n' => '\n', // 37, New line character \n
'%t' => '\t', // 38, Tab character \t
'%%' => '%' // 39, Literal percentage character %
];
foreach ($mapping as $index => $value) {
$format = str_replace($index, $value, $format);
}
return $format;
}
/**
* Retrieve the current timezone's offset
*
* @since 1.0.0
* @access public
*/
public static function getOffset($numberOnly = false)
{
jimport('joomla.form.formfield');
$user = \JFactory::getUser();
$timezone = null;
// Try to determine the offset based on the user
if ($user->id != 0) {
$timezone = $user->getParam('timezone');
}
// If user did not set any timezone, we try to retrieve it from Joomla
if (!$timezone) {
$timezone= \FH::jconfig()->get('offset');
}
// Timezone in string
if (!$numberOnly) {
return $timezone;
}
$timezone = new \DateTimeZone($timezone);
$now = new \DateTime('now', $timezone);
$offset = ($timezone->getOffset($now) / 60 / 60);
return $offset;
}
}