mirror of
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89 lines
2 KiB
PHP
89 lines
2 KiB
PHP
<?php
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/*
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* This file is part of MailSo.
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*
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* (c) 2014 Usenko Timur
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace MailSo\Base;
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/**
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* @category MailSo
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* @package Base
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*/
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class DateTimeHelper
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{
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/**
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* @access private
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*/
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private function __construct()
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{
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}
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/**
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* @staticvar \DateTimeZone $oDateTimeZone
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*
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* @return \DateTimeZone
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*/
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public static function GetUtcTimeZoneObject()
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{
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static $oDateTimeZone = null;
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if (null === $oDateTimeZone)
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{
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$oDateTimeZone = new \DateTimeZone('UTC');
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}
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return $oDateTimeZone;
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}
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/**
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* Parse date string formated as "Thu, 10 Jun 2010 08:58:33 -0700 (PDT)"
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* RFC2822
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*
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* @param string $sDateTime
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*
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* @return int
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*/
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public static function ParseRFC2822DateString($sDateTime)
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{
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$sDateTime = \trim(\preg_replace('/ \([a-zA-Z0-9]+\)$/', '', \trim($sDateTime)));
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$oDateTime = \DateTime::createFromFormat('D, d M Y H:i:s O', $sDateTime, \MailSo\Base\DateTimeHelper::GetUtcTimeZoneObject());
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return $oDateTime ? $oDateTime->getTimestamp() : 0;
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}
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/**
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* Parse date string formated as "10-Jan-2012 01:58:17 -0800"
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* IMAP INTERNALDATE Format
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*
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* @param string $sDateTime
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*
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* @return int
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*/
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public static function ParseInternalDateString($sDateTime)
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{
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$sDateTime = \trim($sDateTime);
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if (\preg_match('/^[a-z]{2,4}, /i', $sDateTime)) // RFC2822
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{
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return \MailSo\Base\DateTimeHelper::ParseRFC2822DateString($sDateTime);
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}
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$oDateTime = \DateTime::createFromFormat('d-M-Y H:i:s O', $sDateTime, \MailSo\Base\DateTimeHelper::GetUtcTimeZoneObject());
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return $oDateTime ? $oDateTime->getTimestamp() : 0;
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}
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/**
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* Parse date string formated as "2011-06-14 23:59:59 +0400"
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*
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* @param string $sDateTime
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*
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* @return int
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*/
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public static function ParseDateStringType1($sDateTime)
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{
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$oDateTime = \DateTime::createFromFormat('Y-m-d H:i:s O', \trim($sDateTime), \MailSo\Base\DateTimeHelper::GetUtcTimeZoneObject());
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return $oDateTime ? $oDateTime->getTimestamp() : 0;
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}
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}
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