date
In addition to canby23 at ms19 post:
It's a very bad idea to consider day having 24 hours (86400 secs), because some days have 23, some - 25 hours due to daylight saving changes. Using of mkdate() and strtotime() is always preferred. strtotime() also has a very nice behaviour of datetime manipulations:
<?php
echo strtotime ("+1 day"), "\n";
echo strtotime ("+1 week"), "\n";
echo strtotime ("+1 week 2 days 4 hours 2 seconds"), "\n";
echo strtotime ("next Thursday"), "\n";
echo strtotime ("last Monday"), "\n";
?>
getdate
(PHP 4, PHP 5)
getdate — Get date/time information
Description
array getdate
([ int
$timestamp = time()
] )
Returns an associative array containing the date
information of the timestamp, or the current
local time if no timestamp is given.
Parameters
Return Values
Returns an associative array of information related to
the timestamp. Elements from the returned
associative array are as follows:
| Key | Description | Example returned values |
|---|---|---|
| "seconds" | Numeric representation of seconds | 0 to 59 |
| "minutes" | Numeric representation of minutes | 0 to 59 |
| "hours" | Numeric representation of hours | 0 to 23 |
| "mday" | Numeric representation of the day of the month | 1 to 31 |
| "wday" | Numeric representation of the day of the week | 0 (for Sunday) through 6 (for Saturday) |
| "mon" | Numeric representation of a month | 1 through 12 |
| "year" | A full numeric representation of a year, 4 digits | Examples: 1999 or 2003 |
| "yday" | Numeric representation of the day of the year | 0 through 365 |
| "weekday" | A full textual representation of the day of the week | Sunday through Saturday |
| "month" | A full textual representation of a month, such as January or March | January through December |
| 0 | Seconds since the Unix Epoch, similar to the values returned by time() and used by date(). | System Dependent, typically -2147483648 through 2147483647. |
Examples
Example #1 getdate() example
<?php
$today = getdate();
print_r($today);
?>
The above example will output something similar to:
Array
(
[seconds] => 40
[minutes] => 58
[hours] => 21
[mday] => 17
[wday] => 2
[mon] => 6
[year] => 2003
[yday] => 167
[weekday] => Tuesday
[month] => June
[0] => 1055901520
)
See Also
- date() - Format a local time/date
- idate() - Format a local time/date as integer
- localtime() - Get the local time
- time() - Return current Unix timestamp
- setlocale() - Set locale information
add a note
User Contributed Notes
getdate - [13 notes]
Yura Pylypenko (plyrvt at mail dot ru) ¶
9 years ago
timforte at gmail dot com ¶
5 years ago
It's worth noting that this is local time, not UTC/GMT - gmgetdate doesn't exist :(.
The most logical way to handle date arithmetic without hitting DST problems is to work in UTC...
<?php
function add_days($my_date,$numdays) {
$date_t = strtotime($my_date.' UTC');
return gmdate('Y-m-d',$date_t + ($numdays*86400));
}
?>
[it's even faster if you use gmmktime instead of strtotime]
eric dot schultz at NOSPAM dot CyVon dot com ¶
4 years ago
Here is another gmgetdate that is a little faster/suscint (no loops).
<?php
function gmgetdate2($ts = null){
$k = array('seconds','minutes','hours','mday',
'wday','mon','year','yday','weekday','month',0);
return(array_combine($k,split(":",
gmdate('s:i:G:j:w:n:Y:z:l:F:U',is_null($ts)?time():$ts))));
}
?>
It also returns the values in the same order as getdate.
andre at anlex dot co dot za ¶
6 years ago
I thought best to show a posseble way to go about bypassing the end month issue where the first day in a new month will have the monday of the week that it falls in - in the old month. Use the numbering of days as the constant and work you way from there.
Example:
<?php
//-----------------------------
$now = time();
$num = date("w");
if ($num == 0)
{ $sub = 6; }
else { $sub = ($num-1); }
$WeekMon = mktime(0, 0, 0, date("m", $now) , date("d", $now)-$sub, date("Y", $now)); //monday week begin calculation
$todayh = getdate($WeekMon); //monday week begin reconvert
$d = $todayh[mday];
$m = $todayh[mon];
$y = $todayh[year];
echo "$d-$m-$y"; //getdate converted day
?>
Allot less code makes everyone happy..
Cas_AT_NUY_DOT_INFO ¶
7 years ago
<?php
// This functions calculates the next date only using business days
// 2 parameters, the startdate and the number of businessdays to add
function calcduedate($datecalc,$duedays) {
$i = 1;
while ($i <= $duedays) {
$datecalc += 86400; // Add a day.
$date_info = getdate( $datecalc );
if (($date_info["wday"] == 0) or ($date_info["wday"] == 6) ) {
$datecalc += 86400; // Add a day.
continue;
}
$i++;
}
return $datecalc ;
}
?>
getisomonday($year, $week) ¶
9 years ago
getdate does not convert week numbers. this function relies on strftime to find a timestamp that falls on the monday of specified year and ISO week:
<?php function getisomonday($year, $week) {
# check input
$year = min ($year, 2038); $year = max ($year, 1970);
$week = min ($week, 53); $week = max ($week, 1);
# make a guess
$monday = mktime (1,1,1,1,7*$week,$year);
# count down to week
while (strftime('%V', $monday) != $week)
$monday -= 60*60*24*7;
# count down to monday
while (strftime('%u', $monday) != 1)
$monday -= 60*60*24;
# got it
return $monday;
} ?>
binupillai2003 at yahoo dot com(Binu V Pillai) ¶
3 years ago
<?php
/* Function to find the first and last day of the month from the given date.
*
* Author Binu v Pillai binupillai2003@yahoo.com
* @Param String yyyy-mm-dd
*
*/
function findFirstAndLastDay($anyDate)
{
//$anyDate = '2009-08-25'; // date format should be yyyy-mm-dd
list($yr,$mn,$dt) = split('-',$anyDate); // separate year, month and date
$timeStamp = mktime(0,0,0,$mn,1,$yr); //Create time stamp of the first day from the give date.
$firstDay = date('D',$timeStamp); //get first day of the given month
list($y,$m,$t) = split('-',date('Y-m-t',$timeStamp)); //Find the last date of the month and separating it
$lastDayTimeStamp = mktime(0,0,0,$m,$t,$y);//create time stamp of the last date of the give month
$lastDay = date('D',$lastDayTimeStamp);// Find last day of the month
$arrDay = array("$firstDay","$lastDay"); // return the result in an array format.
return $arrDay;
}
//Usage
$dayArray=array();
$dayArray=findFirstAndLastDay('2009-02-25');
print $dayArray[0];
print $dayArray[1];
?>
chris AT cmbuckley DOT co DOT uk ¶
4 years ago
For those who want the gmgetdate function that matches the behaviour of getdate:
<?php
function gmgetdate($timestamp = null) {
if (is_null($timestamp)) { $timestamp = time(); }
$dateParts = array(
'mday' => 'j',
'wday' => 'w',
'yday' => 'z',
'mon' => 'n',
'year' => 'Y',
'hours' => 'G',
'minutes' => 'i',
'seconds' => 's',
'weekday' => 'l',
'month' => 'F',
0 => 'U'
);
while (list(, $value) = each($dateParts)) {
$value = gmdate($value, $timestamp);
if (is_numeric($value)) { $value = (int)$value; }
}
return $dateParts;
}
?>
Jared Armstrong ¶
6 years ago
A nice little function I wrote to determine what number occurrence weekday it is of the month for a given timestamp. (I.e. 2nd Friday, or the 3rd Thursday)
Eg: print_r(getWeekdayOccurrence(mktime(0, 0, 0, 12, 1, 2006)));
Outputs: Array ( [0] => 1 [1] => Friday ) [The first friday]
Eg. print_r(getWeekdayOccurrence(mktime(0, 0, 0, 8, 17, 2009)));
Outputs: Array ( [0] => 3 [1] => Monday ) [The third Monday]
<?php
function getWeekdayOccurrence($time) {
$month = intval(date("m", $time)); $day = intval(date("d", $time));
for ($i = 0; $i < 7; $i++) {
$days[] = date("l", mktime(0, 0, 0, $month, ($i+1), date("Y", $time)));
}
$posd = array_search(date("l", $time), $days);
$posdm = array_search($days[0], $days) - $posd; /
return array((($day+$posdm+6)/7), $days[$posd]);
}
?>
moshe at unirgy dot com ¶
3 years ago
A function/method to calculate the next workday, taking into account US federal holidays:
<?php
function getNextWorkDayTime($date=null)
{
$time = is_string($date) ? strtotime($date) : (is_int($date) ? $date : time());
$y = date('Y', $time);
// calculate federal holidays
$holidays = array();
// month/day (jan 1st). iteration/wday/month (3rd monday in january)
$hdata = array('1/1'/*newyr*/, '7/4'/*jul4*/, '11/11'/*vet*/, '12/25'/*xmas*/, '3/1/1'/*mlk*/, '3/1/2'/*pres*/, '5/1/5'/*memo*/, '1/1/9'/*labor*/, '2/1/10'/*col*/, '4/4/11'/*thanks*/);
foreach ($hdata as $h1) {
$h = explode('/', $h1);
if (sizeof($h)==2) { // by date
$htime = mktime(0, 0, 0, $h[0], $h[1], $y); // time of holiday
$w = date('w', $htime); // get weekday of holiday
$htime += $w==0 ? 86400 : ($w==6 ? -86400 : 0); // if weekend, adjust
} else { // by weekday
$htime = mktime(0, 0, 0, $h[2], 1, $y); // get 1st day of month
$w = date('w', $htime); // weekday of first day of month
$d = 1+($h[1]-$w+7)%7; // get to the 1st weekday
for ($t=$htime, $i=1; $i<=$h[0]; $i++, $d+=7) { // iterate to nth weekday
$t = mktime(0, 0, 0, $h[2], $d, $y); // get next weekday
if (date('n', $t)>$h[2]) break; // check that it's still in the same month
$htime = $t; // valid
}
}
$holidays[] = $htime; // save the holiday
}
for ($i=0; $i<5; $i++, $time+=86400) { // 5 days should be enough to get to workday
if (in_array(date('w', $time), array(0, 6))) continue; // skip weekends
foreach ($holidays as $h) { // iterate through holidays
if ($time>=$h && $time<$h+86400) continue 2; // skip holidays
}
break; // found the workday
}
return $time;
}
?>
[EDIT BY danbrown AT php DOT net: Contains a bugfix by (yhbeh888 AT yahoo DOT com) on 24-FEB-2010 to address a bug in the "7th line counted from the bottom."]
cesar at nixar dot org ¶
6 years ago
<?php
/**
* This function is similar to getdate() but it returns
* the month information.
*
* Returns an associative array containing the month
* information of the parameters, or the current month
* if no parameters are given.
*
*/
function getmonth ($month = null, $year = null)
{
// The current month is used if none is supplied.
if (is_null($month))
$month = date('n');
// The current year is used if none is supplied.
if (is_null($year))
$year = date('Y');
// Verifying if the month exist
if (!checkdate($month, 1, $year))
return null;
// Calculating the days of the month
$first_of_month = mktime(0, 0, 0, $month, 1, $year);
$days_in_month = date('t', $first_of_month);
$last_of_month = mktime(0, 0, 0, $month, $days_in_month, $year);
$m = array();
$m['first_mday'] = 1;
$m['first_wday'] = date('w', $first_of_month);
$m['first_weekday'] = strftime('%A', $first_of_month);
$m['first_yday'] = date('z', $first_of_month);
$m['first_week'] = date('W', $first_of_month);
$m['last_mday'] = $days_in_month;
$m['last_wday'] = date('w', $last_of_month);
$m['last_weekday'] = strftime('%A', $last_of_month);
$m['last_yday'] = date('z', $last_of_month);
$m['last_week'] = date('W', $last_of_month);
$m['mon'] = $month;
$m['month'] = strftime('%B', $first_of_month);
$m['year'] = $year;
return $m;
}
// Output
print_r(getmonth(11, 1978));
print_r(getmonth());
?>
leo25in at yahoo dot com ¶
8 years ago
getting weekday(actual date) from any give date.
<?php
function cal_date($wday,$tstamp)
{
return $tstamp-($wday*(24*3600));
}
function getweekday($m,$d,$y)
{
$tstamp=mktime(0,0,0,$m,$d,$y);
$Tdate = getdate($tstamp);
$wday=$Tdate["wday"];
switch($wday)
{
case 0;
$wstamp=cal_date($wday,$tstamp);
//echo date("Y-m-d",$wstamp);
break;
case 1;
$wstamp=cal_date($wday,$tstamp);
//echo date("Y-m-d",$wstamp);
break;
case 2;
$wstamp=cal_date($wday,$tstamp);
//echo date("Y-m-d",$wstamp);
break;
case 3;
$wstamp=cal_date($wday,$tstamp);
//echo date("Y-m-d",$wstamp);
break;
case 4;
$wstamp=cal_date($wday,$tstamp);
//echo date("Y-m-d",$wstamp);
break;
case 5;
$wstamp=cal_date($wday,$tstamp);
//echo date("Y-m-d",$wstamp);
break;
case 6;
$wstamp=cal_date($wday,$tstamp);
//echo date("Y-m-d",$wstamp);
break;
}
$w["day"]=date("d",$wstamp);
$w["month"]=date("m",$wstamp);
$w["year"]=date("Y",$wstamp);
return $w;
}
?>
Anonymous ¶
4 years ago
I couldn't get the last 2 examples of gmgetdate() to work, so here's a modification that did work for me that behaves exactly like getdate() :
<?php
function gmgetdate($timestamp = null) {
if (is_null($timestamp)) { $timestamp = time(); }
$dateParts = array(
'mday' => 'j',
'wday' => 'w',
'yday' => 'z',
'mon' => 'n',
'year' => 'Y',
'hours' => 'G',
'minutes' => 'i',
'seconds' => 's',
'weekday' => 'l',
'month' => 'F',
0 => 'U'
);
while (list($part, $format) = each($dateParts)) {
$GMdateParts[$part] = gmdate($format, $timestamp);
}
return $GMdateParts;
}
?>