RETURNS the formated local time or date related to GMT/UTC where:
GMT, Greenwich Mean Time and
UTC, Coordinated Universal Time.
<?php
str gmdate ( str $format , int|null $timestamp = null )
$format = The format of outpitted date
(SEE the below TABLE)
In addition, some constants may be used,
which have recurring values
(SEE the below TABLE)
$timestamp = The UNIX timestamp:
The current local time, if not given.
In other words it uses the default provided
by the time function.
?>
| RECOGNIZED CHARACTERS | ||
| 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 | A full textual representation of the day of the week | Sunday through Saturday |
| N | ISO-8601 numeric representation of the day of the week Since 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 | 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 week-numbering year. 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. Since PHP 5.1.0 |
Examples: 1999 or 2018 |
| Y | A full numeric representation of a year, 4 digits | Examples: 1999 or 2018 |
| y | A two digit representation of a year | Examples: 99 or 18 |
| 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 - Since PHP 5.2.2. Note that date will always generate 000000 since it takes an integer parameter, whereas DateTime::format does support microseconds if DateTime created with microseconds. |
Example: 654321 |
| v | Milliseconds - Since PHP 7.0.0. Same note applies as for u. |
Example: 654 |
| Timezone | ||
| e | Timezone identifier Since PHP 5.1.0 |
Examples: UTC, GMT, Atlantic/Azores |
| I (capital i) | Whether or not the date is in Daylight Saving Time | 1 if DST, 0 if not DST. |
| O | Difference to Greenwich time (GMT) in hours | Example: +0200 |
| P | Difference to Greenwich time (GMT) with colon between hours and minutes. Since 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 the function time |
| ed48 | ||
| FORMAT CHARACTER | USE | TIMESTAMP PROVIDED BY |
| H | gmdate("H") | time() |
| i | gmdate("i") | |
| s | gmdate("s") | |
| n | gdate("n") | |
| j | gmdate("j") | |
| Y | gmdate("Y") | |
| ed48 | ||
| FORMAT DATES | |
| Usual Interface | DateTimeInterface STRING DESCRIPTION |
| DATE_ATOM | DateTimeInterface::ATOM Y-m-d\TH:i:sP Atom: 2018-08-15T15:52:01+00:00 |
| DATE_COOKIE | DateTimeInterface::COOKIE l, d-M-Y H:i:s T HTTP Cookies: Monday, 15-Aug-2018 15:52:01 UTC |
| * DATE_ISO8601 | DateTimeInterface::ISO8601 Y-m-d\TH:i:sO ISO-8601: 2018-08-15T15:52:01+0000 |
| DATE_RFC822 | DateTimeInterface::RFC822 D, d M y H:i:s O RFC 822: Mon, 15 Aug 18 15:52:01 +0000 |
| DATE_RFC850 | DateTimeInterface::RFC850 l, d-M-y H:i:s T RFC 850: Monday, 15-Aug-18 15:52:01 UTC |
| DATE_RFC1036 | DateTimeInterface::RFC1036 D, d M y H:i:s O RFC 1036: Mon, 15 Aug 18 15:52:01 +0000 |
| DATE_RFC1123 | DateTimeInterface::RFC1123 D, d M Y H:i:s O RFC 1123: Mon, 15 Aug 2018 15:52:01 +0000 |
| DATE_RFC2822 | DateTimeInterface::RFC2822 D, d M Y H:i:s O RFC 2822: Mon, 15 Aug 2018 15:52:01 +0000 |
| DATE_RFC7231 | DateTimeInterface::RFC7231 D, d M Y H:i:s \G\M\T RFC 7231: Mon, 15 Aug 2018 15:52:01 GMT |
| DATE_RFC3339 | DateTimeInterface::RFC3339 Y-m-d\TH:i:sP Same as DATE_ATOM Since PHP 5.1.3 |
| DATE_RFC3339_EXTENDED | DateTimeInterface::RFC3339_EXTENDED Y-m-d\TH:i:s.vP RFC 3339 EXTENDED format Since PHP 7.0.0 2018-08-15T15:52:01.000+00:00 |
| DATE_RSS | DateTimeInterface::RSS D, d M Y H:i:s O RSS: Mon, 15 Aug 2018 15:52:01 +0000 |
| DATE_W3C | DateTimeInterface::W3C Y-m-d\TH:i:sP World Wide Web Consortium: 2018-08-15T15:52:01+00:00 |
| ed48 | |
EXERCISE
<?php
// CURRENT TIMESTAMP
$gmdate01 = gmdate(DateTimeInterface::RFC850);
echo $gmdate01;
?>
EXERCISE
<?php
$str_tz = 'Asia/Tokyo';
$tzok = date_default_timezone_set($str_tz);
// If the timezone is not assigned, UTC will be considered
$gmdatef_01 = gmdate("l F d Y h:i:s A");
// If $int_timestamp, is not provided,
// the current value of time() will be considered
$ts_now = time();
// CURRENT TIMESTAMP
$gmdatef_02 = gmdate("l F d Y H:i:s", $ts_now);
echo 'gmdate("l F d Y h:i A")<br><br>' . $gmdatef_01;
echo '<br><br><br>gmdate("l F d Y H:i:s", time())<br><br>' . $gmdatef_02 . '<br>';
?>
EXERCISE
<?php
$str_tz = 'UTC';
$tzok = date_default_timezone_set($str_tz);
$ts_zero = 0;
// VALUE OF TIMESTAMP EQUAL TO ZERO
$datef_03 = gmdate("l F d Y H:i:s", $ts_zero);
echo '<br><br><br>gmdate("l F d Y H:i:s", time())<br><br>' . $datef_03 . '<br>';
?>
EXERCISE
<?php
$str_tz = 'UTC';
$tzok = date_default_timezone_set($str_tz);
$ts_ant = -112345678;
// VALUE OF TIMESTAMP LESS THAN ZERO
$datef_04 = gmdate("l F d Y H:i:s", $ts_ant);
echo '<br><br><br>gdate("l F d Y H:i:s",
time())<br><br>' . $datef_04 . '<br>';
?>
EXERCISE
<?php
$arrid05 = [ "H" => "GMT hour",
"i" => "GMT minute",
"s" => "GMT second",
"n" => "Month",
"i" => "Minutes",
"j" => "Day",
"Y" => "Year" ];
foreach($arrid05 as $vl05 => $v05)
{
echo ' [' . $vl05 . '] ' .
gmdate($vl05) . ' => ' . $v05 . '<br>';
}
echo '<br><br>';
?>
EXERCISE
<?php
$datef06a = [ 'DATE_ATOM' => DATE_ATOM,
'DATE_COOKIE' => DATE_COOKIE,
'DATE_ISO8601' => DATE_ISO8601,
'DATE_RFC822' => DATE_RFC822,
'DATE_RFC850' => DATE_RFC850,
'DATE_RFC1036' => DATE_RFC1036,
'DATE_RFC1123' => DATE_RFC1123,
'DATE_RFC2822' => DATE_RFC2822,
'DATE_RFC7231' => DATE_RFC7231,
'DATE_RFC3339' => DATE_RFC3339,
'DATE_RFC3339_EXTENDED' =>
DATE_RFC3339_EXTENDED,
'DATE_RSS' => DATE_RSS,
'DATE_W3C' => DATE_W3C ];
foreach($datef06a as $k06a => $v06a)
{
echo $k06a . '<br>' . $v06a . '<br>';
echo gmdate($v06a) . '<br><br>';
}
?>