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msd2/wordpress/wp-includes/SimplePie/Parse/Date.php
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984
msd2/wordpress/wp-includes/SimplePie/Parse/Date.php
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<?php
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/**
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* SimplePie
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*
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* A PHP-Based RSS and Atom Feed Framework.
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* Takes the hard work out of managing a complete RSS/Atom solution.
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*
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* Copyright (c) 2004-2012, Ryan Parman, Geoffrey Sneddon, Ryan McCue, and contributors
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification, are
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* permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice, this list of
|
||||
* conditions and the following disclaimer.
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||||
*
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* * Redistributions in binary form must reproduce the above copyright notice, this list
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||||
* of conditions and the following disclaimer in the documentation and/or other materials
|
||||
* provided with the distribution.
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*
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||||
* * Neither the name of the SimplePie Team nor the names of its contributors may be used
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||||
* to endorse or promote products derived from this software without specific prior
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||||
* written permission.
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||||
*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
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||||
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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||||
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS
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||||
* AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
||||
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
|
||||
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
* POSSIBILITY OF SUCH DAMAGE.
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||||
*
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* @package SimplePie
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* @version 1.3.1
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* @copyright 2004-2012 Ryan Parman, Geoffrey Sneddon, Ryan McCue
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* @author Ryan Parman
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* @author Geoffrey Sneddon
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* @author Ryan McCue
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* @link http://simplepie.org/ SimplePie
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* @license http://www.opensource.org/licenses/bsd-license.php BSD License
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*/
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/**
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* Date Parser
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*
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* @package SimplePie
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* @subpackage Parsing
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*/
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class SimplePie_Parse_Date
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{
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/**
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* Input data
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*
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* @access protected
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* @var string
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*/
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var $date;
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/**
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* List of days, calendar day name => ordinal day number in the week
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*
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* @access protected
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* @var array
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*/
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var $day = array(
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// English
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'mon' => 1,
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'monday' => 1,
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'tue' => 2,
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'tuesday' => 2,
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'wed' => 3,
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'wednesday' => 3,
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'thu' => 4,
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'thursday' => 4,
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'fri' => 5,
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'friday' => 5,
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'sat' => 6,
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'saturday' => 6,
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'sun' => 7,
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'sunday' => 7,
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// Dutch
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'maandag' => 1,
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'dinsdag' => 2,
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'woensdag' => 3,
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'donderdag' => 4,
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'vrijdag' => 5,
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'zaterdag' => 6,
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'zondag' => 7,
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// French
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'lundi' => 1,
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'mardi' => 2,
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'mercredi' => 3,
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'jeudi' => 4,
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'vendredi' => 5,
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'samedi' => 6,
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'dimanche' => 7,
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// German
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'montag' => 1,
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'dienstag' => 2,
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'mittwoch' => 3,
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'donnerstag' => 4,
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'freitag' => 5,
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||||
'samstag' => 6,
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||||
'sonnabend' => 6,
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||||
'sonntag' => 7,
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// Italian
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||||
'lunedì' => 1,
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||||
'martedì' => 2,
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||||
'mercoledì' => 3,
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'giovedì' => 4,
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'venerdì' => 5,
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'sabato' => 6,
|
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'domenica' => 7,
|
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// Spanish
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'lunes' => 1,
|
||||
'martes' => 2,
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'miércoles' => 3,
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||||
'jueves' => 4,
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||||
'viernes' => 5,
|
||||
'sábado' => 6,
|
||||
'domingo' => 7,
|
||||
// Finnish
|
||||
'maanantai' => 1,
|
||||
'tiistai' => 2,
|
||||
'keskiviikko' => 3,
|
||||
'torstai' => 4,
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||||
'perjantai' => 5,
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||||
'lauantai' => 6,
|
||||
'sunnuntai' => 7,
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||||
// Hungarian
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||||
'hétfő' => 1,
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||||
'kedd' => 2,
|
||||
'szerda' => 3,
|
||||
'csütörtok' => 4,
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||||
'péntek' => 5,
|
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'szombat' => 6,
|
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'vasárnap' => 7,
|
||||
// Greek
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'Δευ' => 1,
|
||||
'Τρι' => 2,
|
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'Τετ' => 3,
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'Πεμ' => 4,
|
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'Παρ' => 5,
|
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'Σαβ' => 6,
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'Κυρ' => 7,
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);
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|
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/**
|
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* List of months, calendar month name => calendar month number
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*
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* @access protected
|
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* @var array
|
||||
*/
|
||||
var $month = array(
|
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// English
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||||
'jan' => 1,
|
||||
'january' => 1,
|
||||
'feb' => 2,
|
||||
'february' => 2,
|
||||
'mar' => 3,
|
||||
'march' => 3,
|
||||
'apr' => 4,
|
||||
'april' => 4,
|
||||
'may' => 5,
|
||||
// No long form of May
|
||||
'jun' => 6,
|
||||
'june' => 6,
|
||||
'jul' => 7,
|
||||
'july' => 7,
|
||||
'aug' => 8,
|
||||
'august' => 8,
|
||||
'sep' => 9,
|
||||
'september' => 8,
|
||||
'oct' => 10,
|
||||
'october' => 10,
|
||||
'nov' => 11,
|
||||
'november' => 11,
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||||
'dec' => 12,
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||||
'december' => 12,
|
||||
// Dutch
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||||
'januari' => 1,
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||||
'februari' => 2,
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'maart' => 3,
|
||||
'april' => 4,
|
||||
'mei' => 5,
|
||||
'juni' => 6,
|
||||
'juli' => 7,
|
||||
'augustus' => 8,
|
||||
'september' => 9,
|
||||
'oktober' => 10,
|
||||
'november' => 11,
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||||
'december' => 12,
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// French
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||||
'janvier' => 1,
|
||||
'février' => 2,
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||||
'mars' => 3,
|
||||
'avril' => 4,
|
||||
'mai' => 5,
|
||||
'juin' => 6,
|
||||
'juillet' => 7,
|
||||
'août' => 8,
|
||||
'septembre' => 9,
|
||||
'octobre' => 10,
|
||||
'novembre' => 11,
|
||||
'décembre' => 12,
|
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// German
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||||
'januar' => 1,
|
||||
'februar' => 2,
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||||
'märz' => 3,
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||||
'april' => 4,
|
||||
'mai' => 5,
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||||
'juni' => 6,
|
||||
'juli' => 7,
|
||||
'august' => 8,
|
||||
'september' => 9,
|
||||
'oktober' => 10,
|
||||
'november' => 11,
|
||||
'dezember' => 12,
|
||||
// Italian
|
||||
'gennaio' => 1,
|
||||
'febbraio' => 2,
|
||||
'marzo' => 3,
|
||||
'aprile' => 4,
|
||||
'maggio' => 5,
|
||||
'giugno' => 6,
|
||||
'luglio' => 7,
|
||||
'agosto' => 8,
|
||||
'settembre' => 9,
|
||||
'ottobre' => 10,
|
||||
'novembre' => 11,
|
||||
'dicembre' => 12,
|
||||
// Spanish
|
||||
'enero' => 1,
|
||||
'febrero' => 2,
|
||||
'marzo' => 3,
|
||||
'abril' => 4,
|
||||
'mayo' => 5,
|
||||
'junio' => 6,
|
||||
'julio' => 7,
|
||||
'agosto' => 8,
|
||||
'septiembre' => 9,
|
||||
'setiembre' => 9,
|
||||
'octubre' => 10,
|
||||
'noviembre' => 11,
|
||||
'diciembre' => 12,
|
||||
// Finnish
|
||||
'tammikuu' => 1,
|
||||
'helmikuu' => 2,
|
||||
'maaliskuu' => 3,
|
||||
'huhtikuu' => 4,
|
||||
'toukokuu' => 5,
|
||||
'kesäkuu' => 6,
|
||||
'heinäkuu' => 7,
|
||||
'elokuu' => 8,
|
||||
'suuskuu' => 9,
|
||||
'lokakuu' => 10,
|
||||
'marras' => 11,
|
||||
'joulukuu' => 12,
|
||||
// Hungarian
|
||||
'január' => 1,
|
||||
'február' => 2,
|
||||
'március' => 3,
|
||||
'április' => 4,
|
||||
'május' => 5,
|
||||
'június' => 6,
|
||||
'július' => 7,
|
||||
'augusztus' => 8,
|
||||
'szeptember' => 9,
|
||||
'október' => 10,
|
||||
'november' => 11,
|
||||
'december' => 12,
|
||||
// Greek
|
||||
'Ιαν' => 1,
|
||||
'Φεβ' => 2,
|
||||
'Μάώ' => 3,
|
||||
'Μαώ' => 3,
|
||||
'Απρ' => 4,
|
||||
'Μάι' => 5,
|
||||
'Μαϊ' => 5,
|
||||
'Μαι' => 5,
|
||||
'Ιούν' => 6,
|
||||
'Ιον' => 6,
|
||||
'Ιούλ' => 7,
|
||||
'Ιολ' => 7,
|
||||
'Αύγ' => 8,
|
||||
'Αυγ' => 8,
|
||||
'Σεπ' => 9,
|
||||
'Οκτ' => 10,
|
||||
'Νοέ' => 11,
|
||||
'Δεκ' => 12,
|
||||
);
|
||||
|
||||
/**
|
||||
* List of timezones, abbreviation => offset from UTC
|
||||
*
|
||||
* @access protected
|
||||
* @var array
|
||||
*/
|
||||
var $timezone = array(
|
||||
'ACDT' => 37800,
|
||||
'ACIT' => 28800,
|
||||
'ACST' => 34200,
|
||||
'ACT' => -18000,
|
||||
'ACWDT' => 35100,
|
||||
'ACWST' => 31500,
|
||||
'AEDT' => 39600,
|
||||
'AEST' => 36000,
|
||||
'AFT' => 16200,
|
||||
'AKDT' => -28800,
|
||||
'AKST' => -32400,
|
||||
'AMDT' => 18000,
|
||||
'AMT' => -14400,
|
||||
'ANAST' => 46800,
|
||||
'ANAT' => 43200,
|
||||
'ART' => -10800,
|
||||
'AZOST' => -3600,
|
||||
'AZST' => 18000,
|
||||
'AZT' => 14400,
|
||||
'BIOT' => 21600,
|
||||
'BIT' => -43200,
|
||||
'BOT' => -14400,
|
||||
'BRST' => -7200,
|
||||
'BRT' => -10800,
|
||||
'BST' => 3600,
|
||||
'BTT' => 21600,
|
||||
'CAST' => 18000,
|
||||
'CAT' => 7200,
|
||||
'CCT' => 23400,
|
||||
'CDT' => -18000,
|
||||
'CEDT' => 7200,
|
||||
'CEST' => 7200,
|
||||
'CET' => 3600,
|
||||
'CGST' => -7200,
|
||||
'CGT' => -10800,
|
||||
'CHADT' => 49500,
|
||||
'CHAST' => 45900,
|
||||
'CIST' => -28800,
|
||||
'CKT' => -36000,
|
||||
'CLDT' => -10800,
|
||||
'CLST' => -14400,
|
||||
'COT' => -18000,
|
||||
'CST' => -21600,
|
||||
'CVT' => -3600,
|
||||
'CXT' => 25200,
|
||||
'DAVT' => 25200,
|
||||
'DTAT' => 36000,
|
||||
'EADT' => -18000,
|
||||
'EAST' => -21600,
|
||||
'EAT' => 10800,
|
||||
'ECT' => -18000,
|
||||
'EDT' => -14400,
|
||||
'EEST' => 10800,
|
||||
'EET' => 7200,
|
||||
'EGT' => -3600,
|
||||
'EKST' => 21600,
|
||||
'EST' => -18000,
|
||||
'FJT' => 43200,
|
||||
'FKDT' => -10800,
|
||||
'FKST' => -14400,
|
||||
'FNT' => -7200,
|
||||
'GALT' => -21600,
|
||||
'GEDT' => 14400,
|
||||
'GEST' => 10800,
|
||||
'GFT' => -10800,
|
||||
'GILT' => 43200,
|
||||
'GIT' => -32400,
|
||||
'GST' => 14400,
|
||||
'GST' => -7200,
|
||||
'GYT' => -14400,
|
||||
'HAA' => -10800,
|
||||
'HAC' => -18000,
|
||||
'HADT' => -32400,
|
||||
'HAE' => -14400,
|
||||
'HAP' => -25200,
|
||||
'HAR' => -21600,
|
||||
'HAST' => -36000,
|
||||
'HAT' => -9000,
|
||||
'HAY' => -28800,
|
||||
'HKST' => 28800,
|
||||
'HMT' => 18000,
|
||||
'HNA' => -14400,
|
||||
'HNC' => -21600,
|
||||
'HNE' => -18000,
|
||||
'HNP' => -28800,
|
||||
'HNR' => -25200,
|
||||
'HNT' => -12600,
|
||||
'HNY' => -32400,
|
||||
'IRDT' => 16200,
|
||||
'IRKST' => 32400,
|
||||
'IRKT' => 28800,
|
||||
'IRST' => 12600,
|
||||
'JFDT' => -10800,
|
||||
'JFST' => -14400,
|
||||
'JST' => 32400,
|
||||
'KGST' => 21600,
|
||||
'KGT' => 18000,
|
||||
'KOST' => 39600,
|
||||
'KOVST' => 28800,
|
||||
'KOVT' => 25200,
|
||||
'KRAST' => 28800,
|
||||
'KRAT' => 25200,
|
||||
'KST' => 32400,
|
||||
'LHDT' => 39600,
|
||||
'LHST' => 37800,
|
||||
'LINT' => 50400,
|
||||
'LKT' => 21600,
|
||||
'MAGST' => 43200,
|
||||
'MAGT' => 39600,
|
||||
'MAWT' => 21600,
|
||||
'MDT' => -21600,
|
||||
'MESZ' => 7200,
|
||||
'MEZ' => 3600,
|
||||
'MHT' => 43200,
|
||||
'MIT' => -34200,
|
||||
'MNST' => 32400,
|
||||
'MSDT' => 14400,
|
||||
'MSST' => 10800,
|
||||
'MST' => -25200,
|
||||
'MUT' => 14400,
|
||||
'MVT' => 18000,
|
||||
'MYT' => 28800,
|
||||
'NCT' => 39600,
|
||||
'NDT' => -9000,
|
||||
'NFT' => 41400,
|
||||
'NMIT' => 36000,
|
||||
'NOVST' => 25200,
|
||||
'NOVT' => 21600,
|
||||
'NPT' => 20700,
|
||||
'NRT' => 43200,
|
||||
'NST' => -12600,
|
||||
'NUT' => -39600,
|
||||
'NZDT' => 46800,
|
||||
'NZST' => 43200,
|
||||
'OMSST' => 25200,
|
||||
'OMST' => 21600,
|
||||
'PDT' => -25200,
|
||||
'PET' => -18000,
|
||||
'PETST' => 46800,
|
||||
'PETT' => 43200,
|
||||
'PGT' => 36000,
|
||||
'PHOT' => 46800,
|
||||
'PHT' => 28800,
|
||||
'PKT' => 18000,
|
||||
'PMDT' => -7200,
|
||||
'PMST' => -10800,
|
||||
'PONT' => 39600,
|
||||
'PST' => -28800,
|
||||
'PWT' => 32400,
|
||||
'PYST' => -10800,
|
||||
'PYT' => -14400,
|
||||
'RET' => 14400,
|
||||
'ROTT' => -10800,
|
||||
'SAMST' => 18000,
|
||||
'SAMT' => 14400,
|
||||
'SAST' => 7200,
|
||||
'SBT' => 39600,
|
||||
'SCDT' => 46800,
|
||||
'SCST' => 43200,
|
||||
'SCT' => 14400,
|
||||
'SEST' => 3600,
|
||||
'SGT' => 28800,
|
||||
'SIT' => 28800,
|
||||
'SRT' => -10800,
|
||||
'SST' => -39600,
|
||||
'SYST' => 10800,
|
||||
'SYT' => 7200,
|
||||
'TFT' => 18000,
|
||||
'THAT' => -36000,
|
||||
'TJT' => 18000,
|
||||
'TKT' => -36000,
|
||||
'TMT' => 18000,
|
||||
'TOT' => 46800,
|
||||
'TPT' => 32400,
|
||||
'TRUT' => 36000,
|
||||
'TVT' => 43200,
|
||||
'TWT' => 28800,
|
||||
'UYST' => -7200,
|
||||
'UYT' => -10800,
|
||||
'UZT' => 18000,
|
||||
'VET' => -14400,
|
||||
'VLAST' => 39600,
|
||||
'VLAT' => 36000,
|
||||
'VOST' => 21600,
|
||||
'VUT' => 39600,
|
||||
'WAST' => 7200,
|
||||
'WAT' => 3600,
|
||||
'WDT' => 32400,
|
||||
'WEST' => 3600,
|
||||
'WFT' => 43200,
|
||||
'WIB' => 25200,
|
||||
'WIT' => 32400,
|
||||
'WITA' => 28800,
|
||||
'WKST' => 18000,
|
||||
'WST' => 28800,
|
||||
'YAKST' => 36000,
|
||||
'YAKT' => 32400,
|
||||
'YAPT' => 36000,
|
||||
'YEKST' => 21600,
|
||||
'YEKT' => 18000,
|
||||
);
|
||||
|
||||
/**
|
||||
* Cached PCRE for SimplePie_Parse_Date::$day
|
||||
*
|
||||
* @access protected
|
||||
* @var string
|
||||
*/
|
||||
var $day_pcre;
|
||||
|
||||
/**
|
||||
* Cached PCRE for SimplePie_Parse_Date::$month
|
||||
*
|
||||
* @access protected
|
||||
* @var string
|
||||
*/
|
||||
var $month_pcre;
|
||||
|
||||
/**
|
||||
* Array of user-added callback methods
|
||||
*
|
||||
* @access private
|
||||
* @var array
|
||||
*/
|
||||
var $built_in = array();
|
||||
|
||||
/**
|
||||
* Array of user-added callback methods
|
||||
*
|
||||
* @access private
|
||||
* @var array
|
||||
*/
|
||||
var $user = array();
|
||||
|
||||
/**
|
||||
* Create new SimplePie_Parse_Date object, and set self::day_pcre,
|
||||
* self::month_pcre, and self::built_in
|
||||
*
|
||||
* @access private
|
||||
*/
|
||||
public function __construct()
|
||||
{
|
||||
$this->day_pcre = '(' . implode(array_keys($this->day), '|') . ')';
|
||||
$this->month_pcre = '(' . implode(array_keys($this->month), '|') . ')';
|
||||
|
||||
static $cache;
|
||||
if (!isset($cache[get_class($this)]))
|
||||
{
|
||||
$all_methods = get_class_methods($this);
|
||||
|
||||
foreach ($all_methods as $method)
|
||||
{
|
||||
if (strtolower(substr($method, 0, 5)) === 'date_')
|
||||
{
|
||||
$cache[get_class($this)][] = $method;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
foreach ($cache[get_class($this)] as $method)
|
||||
{
|
||||
$this->built_in[] = $method;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Get the object
|
||||
*
|
||||
* @access public
|
||||
*/
|
||||
public static function get()
|
||||
{
|
||||
static $object;
|
||||
if (!$object)
|
||||
{
|
||||
$object = new SimplePie_Parse_Date;
|
||||
}
|
||||
return $object;
|
||||
}
|
||||
|
||||
/**
|
||||
* Parse a date
|
||||
*
|
||||
* @final
|
||||
* @access public
|
||||
* @param string $date Date to parse
|
||||
* @return int Timestamp corresponding to date string, or false on failure
|
||||
*/
|
||||
public function parse($date)
|
||||
{
|
||||
foreach ($this->user as $method)
|
||||
{
|
||||
if (($returned = call_user_func($method, $date)) !== false)
|
||||
{
|
||||
return $returned;
|
||||
}
|
||||
}
|
||||
|
||||
foreach ($this->built_in as $method)
|
||||
{
|
||||
if (($returned = call_user_func(array($this, $method), $date)) !== false)
|
||||
{
|
||||
return $returned;
|
||||
}
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
|
||||
/**
|
||||
* Add a callback method to parse a date
|
||||
*
|
||||
* @final
|
||||
* @access public
|
||||
* @param callable $callback
|
||||
*/
|
||||
public function add_callback($callback)
|
||||
{
|
||||
if (is_callable($callback))
|
||||
{
|
||||
$this->user[] = $callback;
|
||||
}
|
||||
else
|
||||
{
|
||||
trigger_error('User-supplied function must be a valid callback', E_USER_WARNING);
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Parse a superset of W3C-DTF (allows hyphens and colons to be omitted, as
|
||||
* well as allowing any of upper or lower case "T", horizontal tabs, or
|
||||
* spaces to be used as the time seperator (including more than one))
|
||||
*
|
||||
* @access protected
|
||||
* @return int Timestamp
|
||||
*/
|
||||
public function date_w3cdtf($date)
|
||||
{
|
||||
static $pcre;
|
||||
if (!$pcre)
|
||||
{
|
||||
$year = '([0-9]{4})';
|
||||
$month = $day = $hour = $minute = $second = '([0-9]{2})';
|
||||
$decimal = '([0-9]*)';
|
||||
$zone = '(?:(Z)|([+\-])([0-9]{1,2}):?([0-9]{1,2}))';
|
||||
$pcre = '/^' . $year . '(?:-?' . $month . '(?:-?' . $day . '(?:[Tt\x09\x20]+' . $hour . '(?::?' . $minute . '(?::?' . $second . '(?:.' . $decimal . ')?)?)?' . $zone . ')?)?)?$/';
|
||||
}
|
||||
if (preg_match($pcre, $date, $match))
|
||||
{
|
||||
/*
|
||||
Capturing subpatterns:
|
||||
1: Year
|
||||
2: Month
|
||||
3: Day
|
||||
4: Hour
|
||||
5: Minute
|
||||
6: Second
|
||||
7: Decimal fraction of a second
|
||||
8: Zulu
|
||||
9: Timezone ±
|
||||
10: Timezone hours
|
||||
11: Timezone minutes
|
||||
*/
|
||||
|
||||
// Fill in empty matches
|
||||
for ($i = count($match); $i <= 3; $i++)
|
||||
{
|
||||
$match[$i] = '1';
|
||||
}
|
||||
|
||||
for ($i = count($match); $i <= 7; $i++)
|
||||
{
|
||||
$match[$i] = '0';
|
||||
}
|
||||
|
||||
// Numeric timezone
|
||||
if (isset($match[9]) && $match[9] !== '')
|
||||
{
|
||||
$timezone = $match[10] * 3600;
|
||||
$timezone += $match[11] * 60;
|
||||
if ($match[9] === '-')
|
||||
{
|
||||
$timezone = 0 - $timezone;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
$timezone = 0;
|
||||
}
|
||||
|
||||
// Convert the number of seconds to an integer, taking decimals into account
|
||||
$second = round($match[6] + $match[7] / pow(10, strlen($match[7])));
|
||||
|
||||
return gmmktime($match[4], $match[5], $second, $match[2], $match[3], $match[1]) - $timezone;
|
||||
}
|
||||
else
|
||||
{
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Remove RFC822 comments
|
||||
*
|
||||
* @access protected
|
||||
* @param string $data Data to strip comments from
|
||||
* @return string Comment stripped string
|
||||
*/
|
||||
public function remove_rfc2822_comments($string)
|
||||
{
|
||||
$string = (string) $string;
|
||||
$position = 0;
|
||||
$length = strlen($string);
|
||||
$depth = 0;
|
||||
|
||||
$output = '';
|
||||
|
||||
while ($position < $length && ($pos = strpos($string, '(', $position)) !== false)
|
||||
{
|
||||
$output .= substr($string, $position, $pos - $position);
|
||||
$position = $pos + 1;
|
||||
if ($string[$pos - 1] !== '\\')
|
||||
{
|
||||
$depth++;
|
||||
while ($depth && $position < $length)
|
||||
{
|
||||
$position += strcspn($string, '()', $position);
|
||||
if ($string[$position - 1] === '\\')
|
||||
{
|
||||
$position++;
|
||||
continue;
|
||||
}
|
||||
elseif (isset($string[$position]))
|
||||
{
|
||||
switch ($string[$position])
|
||||
{
|
||||
case '(':
|
||||
$depth++;
|
||||
break;
|
||||
|
||||
case ')':
|
||||
$depth--;
|
||||
break;
|
||||
}
|
||||
$position++;
|
||||
}
|
||||
else
|
||||
{
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
$output .= '(';
|
||||
}
|
||||
}
|
||||
$output .= substr($string, $position);
|
||||
|
||||
return $output;
|
||||
}
|
||||
|
||||
/**
|
||||
* Parse RFC2822's date format
|
||||
*
|
||||
* @access protected
|
||||
* @return int Timestamp
|
||||
*/
|
||||
public function date_rfc2822($date)
|
||||
{
|
||||
static $pcre;
|
||||
if (!$pcre)
|
||||
{
|
||||
$wsp = '[\x09\x20]';
|
||||
$fws = '(?:' . $wsp . '+|' . $wsp . '*(?:\x0D\x0A' . $wsp . '+)+)';
|
||||
$optional_fws = $fws . '?';
|
||||
$day_name = $this->day_pcre;
|
||||
$month = $this->month_pcre;
|
||||
$day = '([0-9]{1,2})';
|
||||
$hour = $minute = $second = '([0-9]{2})';
|
||||
$year = '([0-9]{2,4})';
|
||||
$num_zone = '([+\-])([0-9]{2})([0-9]{2})';
|
||||
$character_zone = '([A-Z]{1,5})';
|
||||
$zone = '(?:' . $num_zone . '|' . $character_zone . ')';
|
||||
$pcre = '/(?:' . $optional_fws . $day_name . $optional_fws . ',)?' . $optional_fws . $day . $fws . $month . $fws . $year . $fws . $hour . $optional_fws . ':' . $optional_fws . $minute . '(?:' . $optional_fws . ':' . $optional_fws . $second . ')?' . $fws . $zone . '/i';
|
||||
}
|
||||
if (preg_match($pcre, $this->remove_rfc2822_comments($date), $match))
|
||||
{
|
||||
/*
|
||||
Capturing subpatterns:
|
||||
1: Day name
|
||||
2: Day
|
||||
3: Month
|
||||
4: Year
|
||||
5: Hour
|
||||
6: Minute
|
||||
7: Second
|
||||
8: Timezone ±
|
||||
9: Timezone hours
|
||||
10: Timezone minutes
|
||||
11: Alphabetic timezone
|
||||
*/
|
||||
|
||||
// Find the month number
|
||||
$month = $this->month[strtolower($match[3])];
|
||||
|
||||
// Numeric timezone
|
||||
if ($match[8] !== '')
|
||||
{
|
||||
$timezone = $match[9] * 3600;
|
||||
$timezone += $match[10] * 60;
|
||||
if ($match[8] === '-')
|
||||
{
|
||||
$timezone = 0 - $timezone;
|
||||
}
|
||||
}
|
||||
// Character timezone
|
||||
elseif (isset($this->timezone[strtoupper($match[11])]))
|
||||
{
|
||||
$timezone = $this->timezone[strtoupper($match[11])];
|
||||
}
|
||||
// Assume everything else to be -0000
|
||||
else
|
||||
{
|
||||
$timezone = 0;
|
||||
}
|
||||
|
||||
// Deal with 2/3 digit years
|
||||
if ($match[4] < 50)
|
||||
{
|
||||
$match[4] += 2000;
|
||||
}
|
||||
elseif ($match[4] < 1000)
|
||||
{
|
||||
$match[4] += 1900;
|
||||
}
|
||||
|
||||
// Second is optional, if it is empty set it to zero
|
||||
if ($match[7] !== '')
|
||||
{
|
||||
$second = $match[7];
|
||||
}
|
||||
else
|
||||
{
|
||||
$second = 0;
|
||||
}
|
||||
|
||||
return gmmktime($match[5], $match[6], $second, $month, $match[2], $match[4]) - $timezone;
|
||||
}
|
||||
else
|
||||
{
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Parse RFC850's date format
|
||||
*
|
||||
* @access protected
|
||||
* @return int Timestamp
|
||||
*/
|
||||
public function date_rfc850($date)
|
||||
{
|
||||
static $pcre;
|
||||
if (!$pcre)
|
||||
{
|
||||
$space = '[\x09\x20]+';
|
||||
$day_name = $this->day_pcre;
|
||||
$month = $this->month_pcre;
|
||||
$day = '([0-9]{1,2})';
|
||||
$year = $hour = $minute = $second = '([0-9]{2})';
|
||||
$zone = '([A-Z]{1,5})';
|
||||
$pcre = '/^' . $day_name . ',' . $space . $day . '-' . $month . '-' . $year . $space . $hour . ':' . $minute . ':' . $second . $space . $zone . '$/i';
|
||||
}
|
||||
if (preg_match($pcre, $date, $match))
|
||||
{
|
||||
/*
|
||||
Capturing subpatterns:
|
||||
1: Day name
|
||||
2: Day
|
||||
3: Month
|
||||
4: Year
|
||||
5: Hour
|
||||
6: Minute
|
||||
7: Second
|
||||
8: Timezone
|
||||
*/
|
||||
|
||||
// Month
|
||||
$month = $this->month[strtolower($match[3])];
|
||||
|
||||
// Character timezone
|
||||
if (isset($this->timezone[strtoupper($match[8])]))
|
||||
{
|
||||
$timezone = $this->timezone[strtoupper($match[8])];
|
||||
}
|
||||
// Assume everything else to be -0000
|
||||
else
|
||||
{
|
||||
$timezone = 0;
|
||||
}
|
||||
|
||||
// Deal with 2 digit year
|
||||
if ($match[4] < 50)
|
||||
{
|
||||
$match[4] += 2000;
|
||||
}
|
||||
else
|
||||
{
|
||||
$match[4] += 1900;
|
||||
}
|
||||
|
||||
return gmmktime($match[5], $match[6], $match[7], $month, $match[2], $match[4]) - $timezone;
|
||||
}
|
||||
else
|
||||
{
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Parse C99's asctime()'s date format
|
||||
*
|
||||
* @access protected
|
||||
* @return int Timestamp
|
||||
*/
|
||||
public function date_asctime($date)
|
||||
{
|
||||
static $pcre;
|
||||
if (!$pcre)
|
||||
{
|
||||
$space = '[\x09\x20]+';
|
||||
$wday_name = $this->day_pcre;
|
||||
$mon_name = $this->month_pcre;
|
||||
$day = '([0-9]{1,2})';
|
||||
$hour = $sec = $min = '([0-9]{2})';
|
||||
$year = '([0-9]{4})';
|
||||
$terminator = '\x0A?\x00?';
|
||||
$pcre = '/^' . $wday_name . $space . $mon_name . $space . $day . $space . $hour . ':' . $min . ':' . $sec . $space . $year . $terminator . '$/i';
|
||||
}
|
||||
if (preg_match($pcre, $date, $match))
|
||||
{
|
||||
/*
|
||||
Capturing subpatterns:
|
||||
1: Day name
|
||||
2: Month
|
||||
3: Day
|
||||
4: Hour
|
||||
5: Minute
|
||||
6: Second
|
||||
7: Year
|
||||
*/
|
||||
|
||||
$month = $this->month[strtolower($match[2])];
|
||||
return gmmktime($match[4], $match[5], $match[6], $month, $match[3], $match[7]);
|
||||
}
|
||||
else
|
||||
{
|
||||
return false;
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* Parse dates using strtotime()
|
||||
*
|
||||
* @access protected
|
||||
* @return int Timestamp
|
||||
*/
|
||||
public function date_strtotime($date)
|
||||
{
|
||||
$strtotime = strtotime($date);
|
||||
if ($strtotime === -1 || $strtotime === false)
|
||||
{
|
||||
return false;
|
||||
}
|
||||
else
|
||||
{
|
||||
return $strtotime;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
Reference in New Issue
Block a user