DateFormat PHP Class (php 处置日期)

DateFormat PHP Class (php 处理日期)

代码：

<?phpclass FormatDate{    var $theTime;    function FormatDate($string)    {        	//Set constructor	        $this->theTime = $string;	}	//Returns numerical day	function Day() 	{	return date("j", $this->theTime); }		//Returns weekday	function WeekDay() 	{ 	return date("l", $this->theTime); }	//Returns full month	function Month()	{	return date("F", $this->theTime); }	//Returns short-hand month	function MonthShort() 	{ 	return date("M", $this->theTime); }	//Numeric for month	function MonthNum() 	{ 	return date("n", $this->theTime); }		//Full 4 digit year	function YearFull() 	{ 	return date("Y", $this->theTime); }	//Short 2 digit year	function Year() 	{ 	return date("y", $this->theTime); }	//24 Hr with Seconds	function MilitaryFull()	{	return date("G:i:s", $this->theTime); }	//24 Hr without Seconds	function Military()	{	return date("G:i", $this->theTime); }	//Standard with seconds	function StandardFull()	{	return date("g:i:s a", $this->theTime); }	//Standard without seconds	function Standard()	{	return date("g:i a", $this->theTime); }	//Date & Month & Year Full	function TextDate()	{	$string = $this->Month()." ".$this->Day()." ".$this->YearFull();					return $string;				}		//Date & Month & Year Shorthand	function TextDateShort(){	$string = $this->MonthShort()." ".$this->Day()." ".$this->Year();					return $string;				}	//Numerical Date & Month & Year	function NumDate()	{	$string = $this->MonthNum()."/".$this->Day()."/".$this->YearFull();					return $string;				}	//Numerical Date & Month & Year Shorthand	function NumDateShort()	{	$string = $this->MonthNum()."/".$this->Day()."/".$this->Year();					return $string;				}	//Month & Day Full	function MonthDay()	{	$string = $this->Month()." ".$this->Day();					return $string;				}	//Month & Day Short	function MonthDayShort(){	$string = $this->MonthShort()." ".$this->Day();					return $string;				}	function TimeSince($old_stamp) {		$difference = $this->theTime - $old_stamp;				$loop = true;		while($loop) {			if(round($difference/3153600, 2) >= 1) { return "Over a year..."; }			elseif(round($difference/2592000, 2) >= 2) { return "Over ".round($difference/2592000,0)." months ago..."; }				elseif(round($difference/2592000, 2) >= 1.20) { return "Over a month ago..."; }			elseif(round($difference/604800, 2) >= 2) { return "Over ".round($difference/604800,0)." weeks ago.."; }			elseif(round($difference/604800, 2) >= 1.20) { return "Over a week ago.."; }			elseif(round($difference/86400, 2) >= 1.9) { return "Over a few days ago...";}			elseif(round($difference/3600, 2) >= 3) { return "Just a few hours ago.."; }			elseif(round($difference/3600, 2) >= 8) { return "About half a day ago..."; }					elseif(round($difference/3600, 2) ?<p>实例：</p><pre name="code" class="php">$date = new FormatDate(time());echo $date->Day().'<br>';// 2echo $date->WeekDay().'<br>';// Tuesdayecho $date->Month().'<br>';// Augustecho $date->MonthShort().'<br>';// Augecho $date->MonthNum().'<br>';// 8echo $date->YearFull().'<br>';// 2011echo $date->Year().'<br>';// 11echo $date->MilitaryFull().'<br>';// 9:08:40echo $date->Military().'<br>';// 9:08echo $date->StandardFull().'<br>';// 9:08:40 amecho $date->Standard().'<br>';// 9:08 amecho $date->TextDate().'<br>';// August 2 2011echo $date->TextDateShort().'<br>';// Aug 2 11echo $date->NumDate().'<br>';// 8/2/2011echo $date->NumDateShort().'<br>';// 8/2/11echo $date->MonthDay().'<br>';// August 2echo $date->MonthDayShort().'<br>';// Aug 2echo $date->TimeSince(time()).'<br>';// Less than an hour ago...

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DateFormat Class Documentation

Initialize Class
$date = new FormatDate(time());

Numerical Day
$date->Day();

Text Day
$date->WeekDay();

Month (Full)
$date->Month();

Month (Short)
$date->MonthShort();

Month (Numerical)
$date->MonthNum();

Year (Full)
$date->YearFull();

Year (Short)
$date->Year();

Military (Seconds)
$date->MilitaryFull();

Military (No seconds)
$date->Military();

Standard (Full)
$date->StandardFull();

Standard
$date->Standard();

Text Date (Full)
$date->TextDate();

Text Date (Short)
$date->TextDateShort();

Numerical Date (Full)
$date->NumDate();

Numerical Date (Short)
$date->NumDateShort();

Month and Day (Full)
$date->MonthDay();

Month and Day (Short)
$date->MonthDayShort();

Time Since
$date->TimeSince($timestamp);

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格式： http://php.net/manual/en/function.date.php

format character Description Example returned values

Day	---	---
d	Day of the month, 2 digits with leading zeros	01 to 31
D	A textual representation of a day, three letters	Mon through Sun
j	Day of the month without leading zeros	1 to 31
l (lowercase 'L')	A full textual representation of the day of the week	Sunday through Saturday
N	ISO-8601 numeric representation of the day of the week (added in PHP 5.1.0)	1 (for Monday) through 7 (for Sunday)
S	English ordinal suffix for the day of the month, 2 characters	st, nd, rd or th. Works well with j
w	Numeric representation of the day of the week	0 (for Sunday) through 6 (for Saturday)
z	The day of the year (starting from 0)	0 through 365
Week	---	---
W	ISO-8601 week number of year, weeks starting on Monday (added in PHP 4.1.0)	Example: 42 (the 42nd week in the year)
Month	---	---
F	A full textual representation of a month, such as January or March	January through December
m	Numeric representation of a month, with leading zeros	01 through 12
M	A short textual representation of a month, three letters	Jan through Dec
n	Numeric representation of a month, without leading zeros	1 through 12
t	Number of days in the given month	28 through 31
Year	---	---
L	Whether it's a leap year	1 if it is a leap year, 0 otherwise.
o	ISO-8601 year number. This has the same value as Y, except that if the ISO week number (W) belongs to the previous or next year, that year is used instead. (added in PHP 5.1.0)	Examples: 1999 or 2003
Y	A full numeric representation of a year, 4 digits	Examples: 1999 or 2003
y	A two digit representation of a year	Examples: 99 or 03
Time	---	---
a	Lowercase Ante meridiem and Post meridiem	am or pm
A	Uppercase Ante meridiem and Post meridiem	AM or PM
B	Swatch Internet time	000 through 999
g	12-hour format of an hour without leading zeros	1 through 12
G	24-hour format of an hour without leading zeros	0 through 23
h	12-hour format of an hour with leading zeros	01 through 12
H	24-hour format of an hour with leading zeros	00 through 23
i	Minutes with leading zeros	00 to 59
s	Seconds, with leading zeros	00 through 59
u	Microseconds (added in PHP 5.2.2)	Example: 654321
Timezone	---	---
e	Timezone identifier (added in PHP 5.1.0)	Examples: UTC, GMT, Atlantic/Azores
I (capital i)	Whether or not the date is in daylight saving time	1 if Daylight Saving Time, 0 otherwise.
O	Difference to Greenwich time (GMT) in hours	Example: +0200
P	Difference to Greenwich time (GMT) with colon between hours and minutes (added in PHP 5.1.3)	Example: +02:00
T	Timezone abbreviation	Examples: EST, MDT ...
Z	Timezone offset in seconds. The offset for timezones west of UTC is always negative, and for those east of UTC is always positive.	-43200 through 50400
Full Date/Time	---	---
c	ISO 8601 date (added in PHP 5)	2004-02-12T15:19:21+00:00
r	??RFC 2822 formatted date	Example: Thu, 21 Dec 2000 16:01:07 +0200
U	Seconds since the Unix Epoch (January 1 1970 00:00:00 GMT)	See also time()

Unrecognized characters in the format string will be printed as-is. The Z format will always return 0 when using gmdate().

Note:

Since this function only accepts integer timestamps the u format character is only useful when using the date_format() function with user based timestamps created with date_create().

timestamp

The optional timestamp parameter is aninteger Unix timestamp that defaults to the currentlocal time if a timestamp is not given. In otherwords, it defaults to the value of time().

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