DateFormat PHP Class (php 处理日期)
代码：
<?php class 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($difference/3600, 2)
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<p>实例：</p>
<pre name="code" class="php">$date = new FormatDate(time());
echo $date->Day().'<br>';
// 2
echo $date->WeekDay().'<br>';
// Tuesday
echo $date->Month().'<br>';
// August
echo $date->MonthShort().'<br>';
// Aug
echo $date->MonthNum().'<br>';
// 8
echo $date->YearFull().'<br>';
// 2011
echo $date->Year().'<br>';
// 11
echo $date->MilitaryFull().'<br>';
// 9:08:40
echo $date->Military().'<br>';
// 9:08
echo $date->StandardFull().'<br>';
// 9:08:40 am
echo $date->Standard().'<br>';
// 9:08 am
echo $date->TextDate().'<br>';
// August 2 2011
echo $date->TextDateShort().'<br>';
// Aug 2 11
echo $date->NumDate().'<br>';
// 8/2/2011
echo $date->NumDateShort().'<br>';
// 8/2/11
echo $date->MonthDay().'<br>';
// August 2
echo $date->MonthDayShort().'<br>';
// Aug 2
echo $date->TimeSince(time()).'<br>';
// Less than an hour ago...?
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
| 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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