560 lines
17 KiB
PHP
560 lines
17 KiB
PHP
<?php
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/**
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* CDateFormatter class file.
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*
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* @author Wei Zhuo <weizhuo[at]gmail[dot]com>
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* @author Qiang Xue <qiang.xue@gmail.com>
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* @link http://www.yiiframework.com/
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* @copyright 2008-2013 Yii Software LLC
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* @license http://www.yiiframework.com/license/
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*/
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/**
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* CDateFormatter provides date/time localization functionalities.
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*
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* CDateFormatter allows you to format dates and times in a locale-sensitive manner.
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* Patterns are interpreted in the locale that the CDateFormatter instance
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* is associated with. For example, month names and weekday names may vary
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* under different locales, which yields different formatting results.
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* The patterns that CDateFormatter recognizes are as defined in
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* {@link http://www.unicode.org/reports/tr35/tr35-dates.html#Date_Format_Patterns CLDR}.
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*
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* CDateFormatter supports predefined patterns as well as customized ones:
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* <ul>
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* <li>The method {@link formatDateTime()} formats date or time or both using
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* predefined patterns which include 'full', 'long', 'medium' (default) and 'short'.</li>
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* <li>The method {@link format()} formats datetime using the specified pattern.
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* See {@link http://www.unicode.org/reports/tr35/#Date_Format_Patterns} for
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* details about the recognized pattern characters.</li>
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* </ul>
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*
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* @author Wei Zhuo <weizhuo[at]gmail[dot]com>
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* @author Qiang Xue <qiang.xue@gmail.com>
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* @package system.i18n
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* @since 1.0
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*/
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class CDateFormatter extends CComponent
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{
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/**
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* @var array pattern characters mapping to the corresponding translator methods
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*/
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private static $_formatters=array(
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'G'=>'formatEra',
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'y'=>'formatYear',
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'M'=>'formatMonth',
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'L'=>'formatMonth',
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'd'=>'formatDay',
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'h'=>'formatHour12',
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'H'=>'formatHour24',
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'm'=>'formatMinutes',
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's'=>'formatSeconds',
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'E'=>'formatDayInWeek',
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'c'=>'formatDayInWeek',
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'e'=>'formatDayInWeek',
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'D'=>'formatDayInYear',
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'F'=>'formatDayInMonth',
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'w'=>'formatWeekInYear',
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'W'=>'formatWeekInMonth',
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'a'=>'formatPeriod',
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'k'=>'formatHourInDay',
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'K'=>'formatHourInPeriod',
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'z'=>'formatTimeZone',
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'Z'=>'formatTimeZone',
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'v'=>'formatTimeZone',
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);
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private $_locale;
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/**
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* Constructor.
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* @param mixed $locale locale ID (string) or CLocale instance
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*/
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public function __construct($locale)
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{
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if(is_string($locale))
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$this->_locale=CLocale::getInstance($locale);
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else
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$this->_locale=$locale;
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}
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/**
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* Formats a date according to a customized pattern.
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* @param string $pattern the pattern (See {@link http://www.unicode.org/reports/tr35/tr35-dates.html#Date_Format_Patterns})
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* @param mixed $time UNIX timestamp or a string in strtotime format
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* @return string formatted date time. Null if $time is null. (the null value check is available since Yii 1.1.11)
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*/
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public function format($pattern,$time)
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{
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if($time===null)
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return null;
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if(is_string($time))
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{
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if(ctype_digit($time) || ($time{0}=='-' && ctype_digit(substr($time, 1))))
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$time=(int)$time;
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else
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$time=strtotime($time);
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}
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$date=CTimestamp::getDate($time,false,false);
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$tokens=$this->parseFormat($pattern);
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foreach($tokens as &$token)
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{
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if(is_array($token)) // a callback: method name, sub-pattern
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$token=$this->{$token[0]}($token[1],$date);
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}
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return implode('',$tokens);
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}
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/**
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* Formats a date according to a predefined pattern.
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* The predefined pattern is determined based on the date pattern width and time pattern width.
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* @param mixed $timestamp UNIX timestamp or a string in strtotime format
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* @param string $dateWidth width of the date pattern. It can be 'full', 'long', 'medium' and 'short'.
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* If null, it means the date portion will NOT appear in the formatting result
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* @param string $timeWidth width of the time pattern. It can be 'full', 'long', 'medium' and 'short'.
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* If null, it means the time portion will NOT appear in the formatting result
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* @return string formatted date time.
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*/
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public function formatDateTime($timestamp,$dateWidth='medium',$timeWidth='medium')
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{
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if(!empty($dateWidth))
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$date=$this->format($this->_locale->getDateFormat($dateWidth),$timestamp);
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if(!empty($timeWidth))
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$time=$this->format($this->_locale->getTimeFormat($timeWidth),$timestamp);
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if(isset($date) && isset($time))
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{
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$dateTimePattern=$this->_locale->getDateTimeFormat();
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return strtr($dateTimePattern,array('{0}'=>$time,'{1}'=>$date));
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}
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elseif(isset($date))
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return $date;
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elseif(isset($time))
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return $time;
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}
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/**
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* Parses the datetime format pattern.
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* @param string $pattern the pattern to be parsed
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* @return array tokenized parsing result
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*/
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protected function parseFormat($pattern)
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{
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static $formats=array(); // cache
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if(isset($formats[$pattern]))
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return $formats[$pattern];
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$tokens=array();
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$n=strlen($pattern);
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$isLiteral=false;
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$literal='';
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for($i=0;$i<$n;++$i)
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{
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$c=$pattern[$i];
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if($c==="'")
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{
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if($i<$n-1 && $pattern[$i+1]==="'")
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{
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$tokens[]="'";
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$i++;
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}
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elseif($isLiteral)
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{
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$tokens[]=$literal;
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$literal='';
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$isLiteral=false;
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}
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else
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{
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$isLiteral=true;
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$literal='';
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}
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}
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elseif($isLiteral)
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$literal.=$c;
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else
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{
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for($j=$i+1;$j<$n;++$j)
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{
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if($pattern[$j]!==$c)
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break;
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}
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$p=str_repeat($c,$j-$i);
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if(isset(self::$_formatters[$c]))
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$tokens[]=array(self::$_formatters[$c],$p);
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else
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$tokens[]=$p;
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$i=$j-1;
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}
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}
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if($literal!=='')
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$tokens[]=$literal;
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return $formats[$pattern]=$tokens;
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}
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/**
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* Get the year.
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* "yy" will return the last two digits of year.
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* "y...y" will pad the year with 0 in the front, e.g. "yyyyy" will generate "02008" for year 2008.
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* @param string $pattern a pattern.
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* @param array $date result of {@link CTimestamp::getdate}.
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* @return string formatted year
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*/
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protected function formatYear($pattern,$date)
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{
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$year=$date['year'];
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if($pattern==='yy')
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return str_pad($year%100,2,'0',STR_PAD_LEFT);
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else
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return str_pad($year,strlen($pattern),'0',STR_PAD_LEFT);
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}
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/**
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* Get the month.
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* "M" will return integer 1 through 12;
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* "MM" will return two digits month number with necessary zero padding, e.g. 05;
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* "MMM" will return the abrreviated month name, e.g. "Jan";
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* "MMMM" will return the full month name, e.g. "January";
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* "MMMMM" will return the narrow month name, e.g. "J";
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* @param string $pattern a pattern.
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* @param array $date result of {@link CTimestamp::getdate}.
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* @throws CException if "month" pattern is unknown
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* @return string month name
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*/
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protected function formatMonth($pattern,$date)
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{
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$month=$date['mon'];
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switch($pattern)
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{
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case 'M':
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return $month;
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case 'MM':
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return str_pad($month,2,'0',STR_PAD_LEFT);
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case 'MMM':
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return $this->_locale->getMonthName($month,'abbreviated');
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case 'MMMM':
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return $this->_locale->getMonthName($month,'wide');
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case 'MMMMM':
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return $this->_locale->getMonthName($month,'narrow');
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case 'L':
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return $month;
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case 'LL':
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return str_pad($month,2,'0',STR_PAD_LEFT);
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case 'LLL':
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return $this->_locale->getMonthName($month,'abbreviated', true);
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case 'LLLL':
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return $this->_locale->getMonthName($month,'wide', true);
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case 'LLLLL':
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return $this->_locale->getMonthName($month,'narrow', true);
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default:
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throw new CException(Yii::t('yii','The pattern for month must be "M", "MM", "MMM", "MMMM", "L", "LL", "LLL" or "LLLL".'));
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}
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}
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/**
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* Get the day of the month.
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* "d" for non-padding, "dd" will always return 2 digits day numbers, e.g. 05.
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* @param string $pattern a pattern.
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* @param array $date result of {@link CTimestamp::getdate}.
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* @throws CException if "day" pattern is unknown
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* @return string day of the month
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*/
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protected function formatDay($pattern,$date)
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{
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$day=$date['mday'];
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if($pattern==='d')
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return $day;
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elseif($pattern==='dd')
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return str_pad($day,2,'0',STR_PAD_LEFT);
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else
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throw new CException(Yii::t('yii','The pattern for day of the month must be "d" or "dd".'));
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}
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/**
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* Get the day in the year, e.g. [1-366]
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* @param string $pattern a pattern.
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* @param array $date result of {@link CTimestamp::getdate}.
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* @throws CException is "dayInYear" pattern is unknown
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* @return integer hours in AM/PM format.
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*/
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protected function formatDayInYear($pattern,$date)
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{
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$day=$date['yday'];
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if(($n=strlen($pattern))<=3)
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return str_pad($day,$n,'0',STR_PAD_LEFT);
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else
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throw new CException(Yii::t('yii','The pattern for day in year must be "D", "DD" or "DDD".'));
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}
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/**
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* Get day of week in the month, e.g. 2nd Wed in July.
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* @param string $pattern a pattern.
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* @param array $date result of {@link CTimestamp::getdate}.
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* @throws CException if "dayInMonth" pattern is unknown
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* @return integer day in month
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* @see http://www.unicode.org/reports/tr35/#Date_Format_Patterns
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*/
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protected function formatDayInMonth($pattern,$date)
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{
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if($pattern==='F')
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return (int)(($date['mday']+6)/7);
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else
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throw new CException(Yii::t('yii','The pattern for day in month must be "F".'));
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}
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/**
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* Get the day of the week.
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* "E", "EE", "EEE" will return abbreviated week day name, e.g. "Tues";
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* "EEEE" will return full week day name;
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* "EEEEE" will return the narrow week day name, e.g. "T";
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* @param string $pattern a pattern.
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* @param array $date result of {@link CTimestamp::getdate}.
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* @throws CException if "dayInWeek" pattern is unknown
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* @return string day of the week.
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* @see http://www.unicode.org/reports/tr35/#Date_Format_Patterns
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*/
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protected function formatDayInWeek($pattern,$date)
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{
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$day=$date['wday'];
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switch($pattern)
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{
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case 'E':
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case 'EE':
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case 'EEE':
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case 'eee':
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return $this->_locale->getWeekDayName($day,'abbreviated');
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case 'EEEE':
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case 'eeee':
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return $this->_locale->getWeekDayName($day,'wide');
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case 'EEEEE':
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case 'eeeee':
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return $this->_locale->getWeekDayName($day,'narrow');
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case 'e':
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case 'ee':
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case 'c':
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return $day ? $day : 7;
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case 'ccc':
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return $this->_locale->getWeekDayName($day,'abbreviated',true);
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case 'cccc':
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return $this->_locale->getWeekDayName($day,'wide',true);
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case 'ccccc':
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return $this->_locale->getWeekDayName($day,'narrow',true);
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default:
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throw new CException(Yii::t('yii','The pattern for day of the week must be "E", "EE", "EEE", "EEEE", "EEEEE", "e", "ee", "eee", "eeee", "eeeee", "c", "cccc" or "ccccc".'));
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}
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}
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/**
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* Get the AM/PM designator, 12 noon is PM, 12 midnight is AM.
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* @param string $pattern a pattern.
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* @param array $date result of {@link CTimestamp::getdate}.
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* @throws CException if "period" pattern is unknown
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* @return string AM or PM designator
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*/
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protected function formatPeriod($pattern,$date)
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{
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if($pattern==='a')
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{
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if(intval($date['hours']/12))
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return $this->_locale->getPMName();
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else
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return $this->_locale->getAMName();
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}
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else
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throw new CException(Yii::t('yii','The pattern for AM/PM marker must be "a".'));
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}
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/**
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* Get the hours in 24 hour format, i.e. [0-23].
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* "H" for non-padding, "HH" will always return 2 characters.
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* @param string $pattern a pattern.
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* @param array $date result of {@link CTimestamp::getdate}.
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* @throws CException if "hour24" pattern is unknown
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* @return string hours in 24 hour format.
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*/
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protected function formatHour24($pattern,$date)
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{
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$hour=$date['hours'];
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if($pattern==='H')
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return $hour;
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elseif($pattern==='HH')
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return str_pad($hour,2,'0',STR_PAD_LEFT);
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else
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throw new CException(Yii::t('yii','The pattern for 24 hour format must be "H" or "HH".'));
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}
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/**
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* Get the hours in 12 hour format, i.e., [1-12]
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* "h" for non-padding, "hh" will always return 2 characters.
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* @param string $pattern a pattern.
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* @param array $date result of {@link CTimestamp::getdate}.
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* @throws CException if "hour12" pattern is unknown
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* @return string hours in 12 hour format.
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*/
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protected function formatHour12($pattern,$date)
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{
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$hour=$date['hours'];
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$hour=($hour==12|$hour==0)?12:($hour)%12;
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if($pattern==='h')
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return $hour;
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elseif($pattern==='hh')
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return str_pad($hour,2,'0',STR_PAD_LEFT);
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else
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throw new CException(Yii::t('yii','The pattern for 12 hour format must be "h" or "hh".'));
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}
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/**
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* Get the hours [1-24].
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* 'k' for non-padding, and 'kk' with 2 characters padding.
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* @param string $pattern a pattern.
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* @param array $date result of {@link CTimestamp::getdate}.
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* @throws CException if "hourInDay" pattern is unknown
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* @return integer hours [1-24]
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*/
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protected function formatHourInDay($pattern,$date)
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{
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$hour=$date['hours']==0?24:$date['hours'];
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if($pattern==='k')
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return $hour;
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elseif($pattern==='kk')
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return str_pad($hour,2,'0',STR_PAD_LEFT);
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else
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throw new CException(Yii::t('yii','The pattern for hour in day must be "k" or "kk".'));
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}
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/**
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* Get the hours in AM/PM format, e.g [0-11]
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* "K" for non-padding, "KK" will always return 2 characters.
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* @param string $pattern a pattern.
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* @param array $date result of {@link CTimestamp::getdate}.
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* @throws CException if "hourInPeriod" pattern is unknown
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* @return integer hours in AM/PM format.
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*/
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protected function formatHourInPeriod($pattern,$date)
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{
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$hour=$date['hours']%12;
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if($pattern==='K')
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return $hour;
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elseif($pattern==='KK')
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return str_pad($hour,2,'0',STR_PAD_LEFT);
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else
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throw new CException(Yii::t('yii','The pattern for hour in AM/PM must be "K" or "KK".'));
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}
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/**
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* Get the minutes.
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* "m" for non-padding, "mm" will always return 2 characters.
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* @param string $pattern a pattern.
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* @param array $date result of {@link CTimestamp::getdate}.
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* @throws CException if "minutes" pattern is unknown
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* @return string minutes.
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*/
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protected function formatMinutes($pattern,$date)
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{
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$minutes=$date['minutes'];
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if($pattern==='m')
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return $minutes;
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elseif($pattern==='mm')
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return str_pad($minutes,2,'0',STR_PAD_LEFT);
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else
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throw new CException(Yii::t('yii','The pattern for minutes must be "m" or "mm".'));
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}
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/**
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* Get the seconds.
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* "s" for non-padding, "ss" will always return 2 characters.
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* @param string $pattern a pattern.
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* @param array $date result of {@link CTimestamp::getdate}.
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* @throws CException if "seconds" pattern is unknown
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* @return string seconds
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*/
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protected function formatSeconds($pattern,$date)
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{
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$seconds=$date['seconds'];
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if($pattern==='s')
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return $seconds;
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elseif($pattern==='ss')
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return str_pad($seconds,2,'0',STR_PAD_LEFT);
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else
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throw new CException(Yii::t('yii','The pattern for seconds must be "s" or "ss".'));
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}
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/**
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* Get the week in the year.
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* @param string $pattern a pattern.
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* @param array $date result of {@link CTimestamp::getdate}.
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* @throws CException if "weekInYear" pattern is unknown
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* @return integer week in year
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*/
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protected function formatWeekInYear($pattern,$date)
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{
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if($pattern==='w')
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return @date('W',@mktime(0,0,0,$date['mon'],$date['mday'],$date['year']));
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else
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throw new CException(Yii::t('yii','The pattern for week in year must be "w".'));
|
|
}
|
|
|
|
/**
|
|
* Get week in the month.
|
|
* @param array $pattern result of {@link CTimestamp::getdate}.
|
|
* @param string $date a pattern.
|
|
* @throws CException if "weekInMonth" pattern is unknown
|
|
* @return integer week in month
|
|
*/
|
|
protected function formatWeekInMonth($pattern,$date)
|
|
{
|
|
if($pattern==='W')
|
|
{
|
|
$weekDay=date('N',mktime(0,0,0,$date['mon'],1,$date['year']));
|
|
return floor(($weekDay+$date['mday']-2)/7)+1;
|
|
}
|
|
else
|
|
throw new CException(Yii::t('yii','The pattern for week in month must be "W".'));
|
|
}
|
|
|
|
/**
|
|
* Get the timezone of the server machine.
|
|
* @param string $pattern a pattern.
|
|
* @param array $date result of {@link CTimestamp::getdate}.
|
|
* @throws CException if "timeZone" pattern is unknown
|
|
* @return string time zone
|
|
* @todo How to get the timezone for a different region?
|
|
*/
|
|
protected function formatTimeZone($pattern,$date)
|
|
{
|
|
if($pattern[0]==='z' || $pattern[0]==='v')
|
|
return @date('T', @mktime($date['hours'], $date['minutes'], $date['seconds'], $date['mon'], $date['mday'], $date['year']));
|
|
elseif($pattern[0]==='Z')
|
|
return @date('O', @mktime($date['hours'], $date['minutes'], $date['seconds'], $date['mon'], $date['mday'], $date['year']));
|
|
else
|
|
throw new CException(Yii::t('yii','The pattern for time zone must be "z" or "v".'));
|
|
}
|
|
|
|
/**
|
|
* Get the era. i.e. in gregorian, year > 0 is AD, else BC.
|
|
* @param string $pattern a pattern.
|
|
* @param array $date result of {@link CTimestamp::getdate}.
|
|
* @throws CException if "era" pattern is unknown
|
|
* @return string era
|
|
* @todo How to support multiple Eras?, e.g. Japanese.
|
|
*/
|
|
protected function formatEra($pattern,$date)
|
|
{
|
|
$era=$date['year']>0 ? 1 : 0;
|
|
switch($pattern)
|
|
{
|
|
case 'G':
|
|
case 'GG':
|
|
case 'GGG':
|
|
return $this->_locale->getEraName($era,'abbreviated');
|
|
case 'GGGG':
|
|
return $this->_locale->getEraName($era,'wide');
|
|
case 'GGGGG':
|
|
return $this->_locale->getEraName($era,'narrow');
|
|
default:
|
|
throw new CException(Yii::t('yii','The pattern for era must be "G", "GG", "GGG", "GGGG" or "GGGGG".'));
|
|
}
|
|
}
|
|
}
|