DateFormat PHP Class (php 处置日期)

DateFormat PHP Class (php 处理日期)

代码：

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) 
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实例：
$date = new FormatDate(time());

echo $date->Day().'
';
// 2

echo $date->WeekDay().'
';
// Tuesday

echo $date->Month().'
';
// August

echo $date->MonthShort().'
';
// Aug

echo $date->MonthNum().'
';
// 8

echo $date->YearFull().'
';
// 2011

echo $date->Year().'
';
// 11

echo $date->MilitaryFull().'
';
// 9:08:40

echo $date->Military().'
';
// 9:08

echo $date->StandardFull().'
';
// 9:08:40 am

echo $date->Standard().'
';
// 9:08 am

echo $date->TextDate().'
';
// August 2 2011

echo $date->TextDateShort().'
';
// Aug 2 11

echo $date->NumDate().'
';
// 8/2/2011

echo $date->NumDateShort().'
';
// 8/2/11

echo $date->MonthDay().'
';
// August 2

echo $date->MonthDayShort().'
';
// Aug 2

echo $date->TimeSince(time()).'
';
// 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 an integer Unix timestamp that defaults to the current local time if a timestamp is not given. In other words, it defaults to the value of time() .

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