Last updated: Fri, 21 Nov 2008

date

(PHP 4, PHP 5)

date — Format a local time/date

Description

string date ( string $format [, int $timestamp ] )

Returns a string formatted according to the given format string using the given integer timestamp or the current time if no timestamp is given. In other words, timestamp is optional and defaults to the value of time().

Parameters

format

The format of the outputted date string. See the formatting options below.

**The following characters are recognized in the *`format`* parameter string**
`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: 54321
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().

Return Values

Returns a formatted date string. If a non-numeric value is used for timestamp , FALSE is returned and an E_WARNING level error is emitted.

Errors/Exceptions

Every call to a date/time function will generate a E_NOTICE if the time zone is not valid, and/or a E_STRICT message if using the system settings or the TZ environment variable. See also date_default_timezone_set()

ChangeLog

Version	Description
5.1.0	The valid range of a timestamp is typically from Fri, 13 Dec 1901 20:45:54 GMT to Tue, 19 Jan 2038 03:14:07 GMT. (These are the dates that correspond to the minimum and maximum values for a 32-bit signed integer). However, before PHP 5.1.0 this range was limited from 01-01-1970 to 19-01-2038 on some systems (e.g. Windows).
5.1.0	Now issues the `E_STRICT` and `E_NOTICE` time zone errors.
5.1.1	There are useful constants of standard date/time formats that can be used to specify the `format` parameter.

Examples

Example #1 date() examples


<?php
// set the default timezone to use. Available since PHP 5.1
date_default_timezone_set('UTC');


// Prints something like: Monday
echo date("l");

// Prints something like: Monday 8th of August 2005 03:12:46 PM
echo date('l jS \of F Y h:i:s A');

// Prints: July 1, 2000 is on a Saturday
echo "July 1, 2000 is on a " . date("l", mktime(0, 0, 0, 7, 1, 2000));

/* use the constants in the format parameter */
// prints something like: Mon, 15 Aug 2005 15:12:46 UTC
echo date(DATE_RFC822);

// prints something like: 2000-07-01T00:00:00+00:00
echo date(DATE_ATOM, mktime(0, 0, 0, 7, 1, 2000));
?>

You can prevent a recognized character in the format string from being expanded by escaping it with a preceding backslash. If the character with a backslash is already a special sequence, you may need to also escape the backslash.

Example #2 Escaping characters in date()


<?php
// prints something like: Wednesday the 15th
echo date("l \\t\h\e jS");
?>

It is possible to use date() and mktime() together to find dates in the future or the past.

Example #3 date() and mktime() example


<?php
$tomorrow  = mktime(0, 0, 0, date("m")  , date("d")+1, date("Y"));
$lastmonth = mktime(0, 0, 0, date("m")-1, date("d"),   date("Y"));
$nextyear  = mktime(0, 0, 0, date("m"),   date("d"),   date("Y")+1);
?>

Note: This can be more reliable than simply adding or subtracting the number of seconds in a day or month to a timestamp because of daylight saving time.

Some examples of date() formatting. Note that you should escape any other characters, as any which currently have a special meaning will produce undesirable results, and other characters may be assigned meaning in future PHP versions. When escaping, be sure to use single quotes to prevent characters like \n from becoming newlines.

Example #4 date() Formatting


<?php
// Assuming today is: March 10th, 2001, 5:16:18 pm

$today = date("F j, Y, g:i a");                 // March 10, 2001, 5:16 pm
$today = date("m.d.y");                         // 03.10.01
$today = date("j, n, Y");                       // 10, 3, 2001
$today = date("Ymd");                           // 20010310
$today = date('h-i-s, j-m-y, it is w Day z ');  // 05-16-17, 10-03-01, 1631 1618 6 Fripm01
$today = date('\i\t \i\s \t\h\e jS \d\a\y.');   // It is the 10th day.
$today = date("D M j G:i:s T Y");               // Sat Mar 10 15:16:08 MST 2001
$today = date('H:m:s \m \i\s\ \m\o\n\t\h');     // 17:03:17 m is month
$today = date("H:i:s");                         // 17:16:17
?>

To format dates in other languages, you should use the setlocale() and strftime() functions instead of date().

Notes

Note: To generate a timestamp from a string representation of the date, you may be able to use strtotime(). Additionally, some databases have functions to convert their date formats into timestamps (such as MySQL's » UNIX_TIMESTAMP function).

Tip

Timestamp of the start of the request is available in $_SERVER['REQUEST_TIME'] since PHP 5.1.


Just in case anyone else is looking for an easy-to-find equivalent for W3C Datetime or date("c") in a previous version of php, here's one I did.  Hope it helps someone.





<?php


function w3cDate($time=NULL)


{


    if (empty($time))


        $time = time();


    $offset = date("O",$time);


    return date("Y-m-d\TH:i:s",$time).substr($offset,0,3).":".substr($offset,-2);


}


?>





Examples: 


echo w3cDate(); //2008-11-18T12:15:18-07:00


echo w3cDate(mktime(2,3,4,5,6,2007)); //2007-05-06T02:03:04-06:00

sourabhshankar AT gmail DOT com
14-Nov-2008 12:43


<?php

/*

Find out start and end date of current week.

I am assuming that week starts at sunday and ends at saturday.

so a typical week will look like this: sun,mon,tue,wed,thu,fri,sat

if you find any bug/error, please email me.

*/



//sunday = start of week

$sat = 6; //saturday = end of week

$current_day=date('w');

$days_remaining_until_sat = $sat - $current_day;



$ts_start = strtotime("-$current_day days");

$ts_end = strtotime("+$days_remaining_until_sat days");



echo date('m-d-Y',$ts_start); //start date

echo '<br>';

echo date('m-d-Y',$ts_end); //end date



/*

OUTPUT (m-d-y):

11-09-2008

11-15-2008

*/

?>

tchapin at gmail dot com
09-Nov-2008 10:26


<?php


    // Function used to take two date strings, and returns an associative array


    // with different formats for the difference between the dates.


    // --------------------


    // Variables:


    // StartDateString (String - MM/DD/YYYY)


    // EndDateString (String - MM/DD/YYYY)


    // --------------------


    // Example: $DateDiffAry = GetDateDifference('01/09/2008', '02/11/2009');


    // print_r($DateDiffAry);


    // --------------------


    // Returns Something Like:


    /*    


    Array


    (


        [YearsSince] => 1.0931506849315


        [MonthsSince] => 13.117808219178


        [DaysSince] => 399


        [HoursSince] => 9576


        [MinutesSince] => 574560


        [SecondsSince] => 34473600


        [NiceString] => 1 year, 1 month, and 2 days


        [NiceString2] => Years: 1, Months: 1, Days: 2


    )


    */





    function GetDateDifference($StartDateString=NULL, $EndDateString=NULL) {


        $ReturnArray = array();


        


        $SDSplit = explode('/',$StartDateString);


        $StartDate = mktime(0,0,0,$SDSplit[0],$SDSplit[1],$SDSplit[2]);


        


        $EDSplit = explode('/',$EndDateString);


        $EndDate = mktime(0,0,0,$EDSplit[0],$EDSplit[1],$EDSplit[2]);


        


        $DateDifference = $EndDate-$StartDate;


        


        $ReturnArray['YearsSince'] = $DateDifference/60/60/24/365;


        $ReturnArray['MonthsSince'] = $DateDifference/60/60/24/365*12;


        $ReturnArray['DaysSince'] = $DateDifference/60/60/24;


        $ReturnArray['HoursSince'] = $DateDifference/60/60;


        $ReturnArray['MinutesSince'] = $DateDifference/60;


        $ReturnArray['SecondsSince'] = $DateDifference;





        $y1 = date("Y", $StartDate);


        $m1 = date("m", $StartDate);


        $d1 = date("d", $StartDate);


        $y2 = date("Y", $EndDate);


        $m2 = date("m", $EndDate);


        $d2 = date("d", $EndDate);


        


        $diff = '';


        $diff2 = '';


        if (($EndDate - $StartDate)<=0) {


            // Start date is before or equal to end date!


            $diff = "0 days";


            $diff2 = "Days: 0";


        } else {





            $y = $y2 - $y1;


            $m = $m2 - $m1;


            $d = $d2 - $d1;


            $daysInMonth = date("t",$StartDate);


            if ($d<0) {$m--;$d=$daysInMonth+$d;}


            if ($m<0) {$y--;$m=12+$m;}


            $daysInMonth = date("t",$m2);


            


            // Nicestring ("1 year, 1 month, and 5 days")


            if ($y>0) $diff .= $y==1 ? "1 year" : "$y years";


            if ($y>0 && $m>0) $diff .= ", ";


            if ($m>0) $diff .= $m==1? "1 month" : "$m months";


            if (($m>0||$y>0) && $d>0) $diff .= ", and ";


            if ($d>0) $diff .= $d==1 ? "1 day" : "$d days";


            


            // Nicestring 2 ("Years: 1, Months: 1, Days: 1")


            if ($y>0) $diff2 .= $y==1 ? "Years: 1" : "Years: $y";


            if ($y>0 && $m>0) $diff2 .= ", ";


            if ($m>0) $diff2 .= $m==1? "Months: 1" : "Months: $m";


            if (($m>0||$y>0) && $d>0) $diff2 .= ", ";


            if ($d>0) $diff2 .= $d==1 ? "Days: 1" : "Days: $d";


            


        }


        $ReturnArray['NiceString'] = $diff;


        $ReturnArray['NiceString2'] = $diff2;


        return $ReturnArray;


    }


    


    // Example:


    $DateDiffAry = GetDateDifference('01/09/2008', '02/11/2009');


    print_r($DateDiffAry);


    


?>

Grapsus
02-Nov-2008 03:38


Here's a small function which returns TRUE if European Summer Time is used (now or at a given date) :





<?php


if(!function_exists('estdst'))


{


  function estdst($ts=false)


  {


    $ts = $ts?$ts:time();


    $year = gmdate('Y', $ts);


    $end = gmmktime(1, 0, 0, 3, 31 - ((5 * $year) / 4 + 4)%7, $year);


    $start = gmmktime(1, 0, 0, 10, 31 - ((5 * $year) / 4 + 1)%7, $year);


    return $ts < $end || $ts > $start;


  }


}


?>





Calculation formula taken from here : http://en.wikipedia.org/wiki/European_Summer_Time

robertk113 at comcast dot net
31-Oct-2008 01:46


I need to display graphic-A during hours 1-9 and graphic-B during hours 10-24. Anybody know of a simple way to do this? Better yet, if we can select times based upon the day of the week, it would be even better!



I tried searching, but didn't inf anything resembling this. The coding will be added to a product description in osCommerce, which accepts html coding easily but other scripting types may or may not work. I want an OPEN graphic to display during normal business hours, and CLOSED when outside these hours.



Thanks in advance!

kyle renfrow
22-Oct-2008 06:41


i figured i would post this, it's only useful for systems dealing with UTC and EST, but could easily be modified to support multiple timezones. this function will tell you whether it's daylight saving time for the eastern timezone using UTC localtime:





<?php


//checks whether DST in EST using UTC


//can pass $time in unix timestamp, otherwise uses time()


function est_isdst($time=NULL){


  if(!$time) { $now = time(); }else { $now = $time; }


  if (


       $now > strtotime(date('Y-m-d 6:59:59', strtotime('next Sunday', strtotime(date('Y', $now).'-3-7')))) &&


       $now < strtotime(date('Y-m-d 6:00', strtotime('first Sunday', strtotime(date('Y', $now).'-11-0'))))


     ) { return true; }else { return false; }


}


?>





USAGE:


<?php


if(est_isdst()) { echo 'Its DST in EST Timezone!'; }


?>

adityabhai [at] gmail [dot] com
07-Oct-2008 02:56


Aditya Bhatt (adityabhai [at] gmail [dot] com):



I have one date, and i want the next day of that date:



<?php



echo date("D F d Y",strtotime("+1 days")); // Same applies for months e.g. "+1 months"



?>



I have one date, and i want the previous day of that date:



<?php



echo date("D F d Y",strtotime("-1 days")); // Same applies for months e.g. "-1 months"



?>

Kenneth Kin Lum
02-Oct-2008 03:52


date(DATE_RFC822) and date(DATE_RFC2822) both work.  note that RFC 822 is obsoleted by RFC 2822.  The main difference is the year being 08 in RFC 822 and is 2008 in RFC 2822.



To use date(DATE_RFC2822), a short form is date('r').

nick at nick-web dot co dot uk
25-Sep-2008 08:48


RE: wulf dot kaiser at mpimf-heidelberg dot mpg dot de code to work out fridays in a month. I noticed one small error. It looks like the 

<?php

if ($givenMonth != '12') {



    $nextGivenMonth = "1";

    $nextGivenYear = $givenYear + 1;}

?>

block was setting every month to 1 because it was not equal to 12. I changed that to <?php if ($givenMonth == '12') { ?>and now all is fine!



Now - to refine it so that it only shows Fridays on the 5th or after, until the 4th of the next month.. Damm UK tax stuff!



=)

N

Anonymous
24-Sep-2008 04:35


MySQL 5 will accept ISO_8601 encoded time, so it is acceptable to use date(ISO_8601)

Anonymous
12-Sep-2008 06:01


Correct format for a MySQL DATETIME column is

<?php $mysqltime = date ("Y-m-d H:i:s", $phptime); ?>

Cortexd
27-Aug-2008 11:47


a date function supporting the milliseconds format character



<?php

function udate($format, $utimestamp = null)

{

    if (is_null($utimestamp))

        $utimestamp = microtime(true);



    $timestamp = floor($utimestamp);

    $milliseconds = round(($utimestamp - $timestamp) * 1000000);



    return date(preg_replace('`(?<!\\\\)u`', $milliseconds, $format), $timestamp);

}



echo udate('H:i:s.u'); // 19:40:56.78128

echo udate('H:i:s.u', 654532123.04546); // 16:28:43.45460

?>

pdubbb1 at gmail dot com
26-Aug-2008 05:32


here is the simpliest way to get the start and end date of the week;





<?php


$sdate=date('c',strtotime(date('Y')."W".date('W')."0"));





$edate=date('c',strtotime(date('Y')."W".date('W')."7"));


?>





the format is for the string in strtotime is;


  


     2008W200





this stands for year - 2008, constant never changes - W, week number of the year - 20, day of the week - 0 for sunday, 1 for monday, etc....





so 2008W200 stands for the sunday of the 20th week of 2008.  





This will only work in php 5 or better

abazaba.ru
14-Aug-2008 03:53


All novices must be very carefull when working with timestamps as second values.

From first glance it looks like date("Y-m-d H:i:s",TIMESTAMP) will return correct date, based on "how much seconds gone from 1970".

But here is the feature, it'll be corrected time, according to LOCAL timezone.



So if you take a 25200 as timestamp (10 hours), 

then on one server you'll get 

1970-01-01 08:00:00 

and on other server you'll get 

1970-01-01 09:00:00 

and so on.

Though you could expect 1970-01-01 10:00:00 in all cases, because if 25200 seconds gone from 1970-01-01 00:00:00 it obviously have to be 1970-01-01 10:00:00



I spend today 3 hours to correct scripts which were created with such error by previous programmer, so please, guys, don't make me work like this and remember about conversation to LOCAL time.

phprocks at aol dot com
06-Aug-2008 11:25


Try this for finding the difference in days between 2 dates/datetimes... take note though, date_parse requires PHP version 5.1.3 or higher.





<?php


/**


 * Finds the difference in days between two calendar dates.


 *


 * @param Date $startDate


 * @param Date $endDate


 * @return Int


 */


function dateDiff($startDate, $endDate)


{


    // Parse dates for conversion


    $startArry = date_parse($startDate);


    $endArry = date_parse($endDate);





    // Convert dates to Julian Days


    $start_date = gregoriantojd($startArry["month"], $startArry["day"], $startArry["year"]);


    $end_date = gregoriantojd($endArry["month"], $endArry["day"], $endArry["year"]);





    // Return difference


    return round(($end_date - $start_date), 0);


}


?>

JonathanCross.com
25-Jul-2008 01:22


<?php


// A demonstration of the new DateTime class for those


// trying to use dates before 1970 or after 2038.


?>


<h2>PHP 2038 date bug demo (php version <?php echo phpversion(); ?>)</h1>


<div style='float:left;margin-right:3em;'>


<h3>OLD Buggy date()</h3>


<?php


  $format='F j, Y';


  for ( $i = 1900; $i < 2050; $i++) {


    $datep = "$i-01-01";


    ?>


    Trying: <?php echo $datep; ?> = <?php echo date($format, strtotime($datep)); ?><br>


    <?


  }


?></div>


<div style='float:left;'>


  <h3>NEW DateTime Class (v 5.2+)</h3><?php


  for ( $i = 1900; $i < 2050; $i++) {


    $datep = "$i-01-01";


    $date = new DateTime($datep);


    ?>


    Trying: <?php echo $datep; ?> = <?php echo $date->format($format); ?><br>


    <?


  }


?></div>

Rob A.
10-Jul-2008 09:38


Quick function for returning the names of the next 7 days of the week starting with today.



Returns an array that can be formatted to your liking.



<?php

/**

* Returns array of next 7 days starting with today

*

*/



function next_7_days() {

        // create array of day names. You can change these to whatever you want

    $days = array(

                            'Monday',

                            'Tuesday',

                            'Wednesday',

                            'Thursday',

                            'Friday',

                            'Saturday',

                            'Sunday');

    $today = date('N'); 

    for ($i=1;$i<$today;$i++) {



                // take the first element off the array

        $shift = array_shift($days);



                // ... and add it to the end of the array

        array_push($days,$shift);

    }

        // returns the sorted array

    return $days;

}

?>



It basically takes an array starting with Monday and shifts each day to the end of the array until the first element in the array is today.

con_tobe at yahoo dot com
09-Jul-2008 08:46


Doing $w-- for months ending on Sat won't hurt (i.e. if you're counting weeks as is the case below), but halocastle's code is perfectly fine as is and quite fast.  He/she uses $w as a key for the $weeks array.  "Halo" does this BEFORE $w++, so $w-- is superfluous as the loop has already ended.  For May, 2008, I get 5 weeks as expected...





Array


(


    [1] => Array


        (


            [4] => 1


            [5] => 2


            [6] => 3


        )





    [2] => Array


        (


            [0] => 4


            [1] => 5





------------OMITTED-----------------





            [4] => 22


            [5] => 23


            [6] => 24


        )





    [5] => Array


        (


            [0] => 25


            [1] => 26


            [2] => 27


            [3] => 28


            [4] => 29


            [5] => 30


            [6] => 31


        )





)





I guess the one pit-fall of the code is if you overlap months, say the following year, then $m-- makes perfect since...I think (haven't gotten that far...yet).





I modified "Halo's" code to include months, too (this is from a snippet that produces a three month calendar, hence the outer $months loop, omitted here).





<?php


$m = date('m');


$Y = date('Y');





// for() {months loop omitted


$var_date = mktime(0, 0, 0, $m, 1, $Y);


$month_name = date('F', $var_date);


$months[$month_name]['DAYS'] = date('t', $var_date);


$months[$month_name]['FIRST_DAY'] = date('w', $var_date);


//}


foreach($months as $month => $key) {


  $weeks = array();


  for($i = 1, $j = $key['FIRST_DAY'], $w = 1;$i <= $key['DAYS'];$i++) {


    $weeks[$w][$j] = $i;


    $j++;


    if($j == 7) {


      $j = 0;


      $w++;


    }


  }


  $months[$month]['WEEKS'] = $weeks;


}


?>





Enjoy!

dmagick at gmail dot com
02-Jul-2008 07:44


Slight amendment to halocastle at yahoo dot com 's code as it doesn't take into account when a month finishes on a Saturday (eg May 2008).





<?php


$start_date = mktime(0, 0, 0,$start_month, 1, $start_year);





$days_in_month = date('t', $start_date);


$month_first_day = date('w', $start_date);





$j = $month_first_day;


$num_weeks = 1;





for($i = 1; $i <= $days_in_month; $i++) {


    $j++;


    if($j == 7) {


        $j = 0;


        $num_weeks++;


    }


}





// if the last day of the month happens to be a Saturday,


// take one off the number of weeks


// because it was being added inside the for loop.


if ($j == 0) {


    $num_weeks--;


}


?>

halocastle at yahoo dot com
30-Jun-2008 09:20


Weeks and days for any month/year combo:





<?php


$m = 2; // February


$Y = 2008;





// constants used here for legibility, use $vars for dynamicon...


define('MONTH_DAYS',date('t', strtotime(date($m . '/01/' . $Y))));


// w:0->6 = Sun->Sat


define('MONTH_FIRST_DAY',date('w', strtotime(date($m . '/01/' . $Y))));





for($i = 1, $j = MONTH_FIRST_DAY, $w = 1;$i <= MONTH_DAYS;$i++) {


  $week[$w][$j] = $i;


  $j++;


  if($j == 7) {


    $j = 0;


    $w++;


  }


}


?>





print_r($week):


-----------------------


Array


(


    [1] => Array


        (


            [5] => 1


            [6] => 2


        )





    [2] => Array


        (


            [0] => 3


            [1] => 4


            [2] => 5


            [3] => 6


            [4] => 7


            [5] => 8


            [6] => 9


        )





    [3] => Array


        (


            [0] => 10


            [1] => 11


            [2] => 12


            [3] => 13


            [4] => 14


            [5] => 15


            [6] => 16


        )





    [4] => Array


        (


            [0] => 17


            [1] => 18


            [2] => 19


            [3] => 20


            [4] => 21


            [5] => 22


            [6] => 23


        )





    [5] => Array


        (


            [0] => 24


            [1] => 25


            [2] => 26


            [3] => 27


            [4] => 28


            [5] => 29


        )





)

Kavi Siegel
29-Jun-2008 07:18


I wrote the following function to show a series of drop down boxes to select the date. When provided with a timestamp, that date is selected by default, when none is provided, the current date is selected.





<?php


function chooseDate($timestamp = ""){


    if($timestamp == ""){


        $timestamp = time();


    }


    $months = array(null, 'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec');


    unset($months[0]);


    print_r($months);


    $out = '<select name="month">';


    foreach($months as $key => $month){


        if($month == date('M', $timestamp)){


            $out .= '<option value="'.$key.'" selected="selected">'.$month.'</option>';


        }else{


            $out .= '<option value="'.$key.'">'.$month.'</option>';


        }


    }


    $out .= '</select><select name="days">';


    for($i = 1; $i <= 32; $i++){


        if($i == date('j', $timestamp)){


            $out .= '<option value="'.$i.'" selected="selected">'.$i.'</option>';


        }else{


            $out .= '<option value="'.$i.'">'.$i.'</option>';


        }


    }


    $out .= "</select><select name='year'>";


    for($i = date('Y'); $i >= 1970; $i--){


        if($i == date('Y', $timestamp)){


            $out .= '<option value="'.$i.'" selected="selected">'.$i.'</option>';


        }else{


            $out .= '<option value="'.$i.'">'.$i.'</option>';


        }


    }


    $out .= "</select>";


    return $out;


}


?>





Usage is simple:





<?php


echo chooseDate(); // Will select current date


echo chooseDate(1149566400); // Will select June 6th, 2006


?>

aplarsen
26-Jun-2008 01:12


@anonymous (12-Jun-2008 08:45):

date("t") returns the last day of the month, not the last working day of the month.



A cleaner example would be as follows:

<?php

function lastworkingday($date)

{    

   for($lastday=mktime(0,0,0,date("m",$date),

       date("t",$date),date("Y",$date)); 

     date("w",$lastday)==0 || date("w",$lastday)==6; 

     $lastday-=60*60*24);

   return date("j",$lastday);

}

?>

kontakt at arthur minus schiwon dot de
18-Jun-2008 03:29


to get the week of the month simply use:

ceil( date("j") / 7 );

diego at diego dot eng dot br
09-Jun-2008 04:27


I made a small code to get the last working day of the month:



<?php



$times = strtotime(date("Y")."-".date("m")."-".date("t"));

for ($lastworkingday=0;$lastworkingday==0;$times-=86400)

   if (date("w",$times)!=0 && date("w",$times)!=6) $lastworkingday = date("j",$times);

print $lastworkingday;



?>

phil dot taylor at enilsson dot com
25-May-2008 10:37


Found this helpful when converting unix dates for use with the ical file format.





<?php


// Converts a unix timestamp to iCal format (UTC) - if no timezone is 


// specified then it presumes the uStamp is already in UTC format.


// tzone must be in decimal such as 1hr 45mins would be 1.75, behind 


// times should be represented as negative decimals 10hours behind


// would be -10


        


    function unixToiCal($uStamp = 0, $tzone = 0.0) {


    


        $uStampUTC = $uStamp + ($tzone * 3600);        


        $stamp  = date("Ymd\THis\Z", $uStampUTC);


        


        return $stamp;        





    }


?>

chubby at chicks dot com
23-May-2008 06:54


<?php


/**


     * Checks wether a date is between an interval


     *


     * Usage:


     *      


     * // check if today is older than 2008/12/31


     * var_dump(currentDayIsInInterval('2008/12/31'));


     * // check if today is younger than 2008/12/31


     * var_dump(currentDayIsInInterval(null,'2008/12/31'));


     * // check if today is between 2008/12/01 and 2008/12/31


     * var_dump(currentDayIsInInterval('2008/12/01','2008/12/31'));  


     * 


     * Will trigger errors if date is in wrong format, notices if $begin > $end     


     *          


     * @param string $begin Date string as YYYY/mm/dd


     * @param string $end Date string as YYYY/mm/dd


     * @return bool  


     */


function currentDayIsInInterval($begin = '',$end = '')


{


        $preg_exp = '"[0-9][0-9][0-9][0-9]/[0-9][0-9]/[0-9][0-9]"';


        $preg_error = 'Wrong parameter passed to function '.__FUNCTION__.' : Invalide date


format. Please use YYYY/mm/dd.';


        $interval_error = 'First parameter in '.__FUNCTION__.' should be smaller than


second.';


        if(empty($begin))


        {


                $begin = 0;


        }


        else


        {


                if(preg_match($preg_exp,$begin))


                {


                        $begin = (int)str_replace('/','',$begin);


                }


         &