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Как узнать дату php

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date

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

Warning

Unix timestamps do not handle timezones. Use the DateTimeImmutable class, and its DateTimeInterface::format() formatting method to format date/time information with a timezone attached.

Parameters

Note: date() will always generate 000000 as microseconds since it takes an int parameter, whereas DateTime::format() does support microseconds if DateTime was created with microseconds.

The optional timestamp parameter is an int Unix timestamp that defaults to the current local time if timestamp is omitted or null . In other words, it defaults to the value of time() .

Return Values

Returns a formatted date string.

Errors/Exceptions

Every call to a date/time function will generate a E_WARNING if the time zone is not valid. See also date_default_timezone_set()

Changelog

Version Description
8.0.0 timestamp is nullable now.

Examples

Example #1 date() examples

// set the default timezone to use.
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: Wed, 25 Sep 2013 15:28:57 -0700
echo date ( DATE_RFC2822 );

// 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()

// 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

$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

// Assuming today is March 10th, 2001, 5:16:18 pm, and that we are in the
// Mountain Standard Time (MST) Time Zone

$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’ ); // 05-16-18, 10-03-01, 1631 1618 6 Satpm01
$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 17:16:18 MST 2001
$today = date ( ‘H:m:s \m \i\s\ \m\o\n\t\h’ ); // 17:03:18 m is month
$today = date ( «H:i:s» ); // 17:16:18
$today = date ( «Y-m-d H:i:s» ); // 2001-03-10 17:16:18 (the MySQL DATETIME format)
?>

To format dates in other languages, IntlDateFormatter::format() can be used 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’] .

See Also

  • DateTimeImmutable::__construct() — Returns new DateTimeImmutable object
  • DateTimeInterface::format() — Returns date formatted according to given format
  • gmdate() — Format a GMT/UTC date/time
  • idate() — Format a local time/date part as integer
  • getdate() — Get date/time information
  • getlastmod() — Gets time of last page modification
  • mktime() — Get Unix timestamp for a date
  • IntlDateFormatter::format() — Format the date/time value as a string
  • time() — Return current Unix timestamp
  • Predefined DateTime Constants

User Contributed Notes

There are no user contributed notes for this page.

  • Date/Time Functions
    • checkdate
    • date_​add
    • date_​create_​from_​format
    • date_​create_​immutable_​from_​format
    • date_​create_​immutable
    • date_​create
    • date_​date_​set
    • date_​default_​timezone_​get
    • date_​default_​timezone_​set
    • date_​diff
    • date_​format
    • date_​get_​last_​errors
    • date_​interval_​create_​from_​date_​string
    • date_​interval_​format
    • date_​isodate_​set
    • date_​modify
    • date_​offset_​get
    • date_​parse_​from_​format
    • date_​parse
    • date_​sub
    • date_​sun_​info
    • date_​sunrise
    • date_​sunset
    • date_​time_​set
    • date_​timestamp_​get
    • date_​timestamp_​set
    • date_​timezone_​get
    • date_​timezone_​set
    • date
    • getdate
    • gettimeofday
    • gmdate
    • gmmktime
    • gmstrftime
    • idate
    • localtime
    • microtime
    • mktime
    • strftime
    • strptime
    • strtotime
    • time
    • timezone_​abbreviations_​list
    • timezone_​identifiers_​list
    • timezone_​location_​get
    • timezone_​name_​from_​abbr
    • timezone_​name_​get
    • timezone_​offset_​get
    • timezone_​open
    • timezone_​transitions_​get
    • timezone_​version_​get
    • Copyright © 2001-2023 The PHP Group
    • My PHP.net
    • Contact
    • Other PHP.net sites
    • Privacy policy

    checkdate

    Checks the validity of the date formed by the arguments. A date is considered valid if each parameter is properly defined.

    Parameters

    The month is between 1 and 12 inclusive.

    The day is within the allowed number of days for the given month . Leap year s are taken into consideration.

    The year is between 1 and 32767 inclusive.

    Return Values

    Returns true if the date given is valid; otherwise returns false .

    Examples

    Example #1 checkdate() example

    var_dump ( checkdate ( 12 , 31 , 2000 ));
    var_dump ( checkdate ( 2 , 29 , 2001 ));
    ?>

    The above example will output:

    bool(true) bool(false)

    See Also

    • mktime() — Get Unix timestamp for a date
    • strtotime() — Parse about any English textual datetime description into a Unix timestamp

    User Contributed Notes 1 note

    10 years ago

    With DateTime you can make the shortest date&time validator for all formats.

    function validateDate ( $date , $format = ‘Y-m-d H:i:s’ )
    $d = DateTime :: createFromFormat ( $format , $date );
    return $d && $d -> format ( $format ) == $date ;
    >

    var_dump ( validateDate ( ‘2012-02-28 12:12:12’ )); # true
    var_dump ( validateDate ( ‘2012-02-30 12:12:12’ )); # false
    var_dump ( validateDate ( ‘2012-02-28’ , ‘Y-m-d’ )); # true
    var_dump ( validateDate ( ’28/02/2012′ , ‘d/m/Y’ )); # true
    var_dump ( validateDate ( ’30/02/2012′ , ‘d/m/Y’ )); # false
    var_dump ( validateDate ( ’14:50′ , ‘H:i’ )); # true
    var_dump ( validateDate ( ’14:77′ , ‘H:i’ )); # false
    var_dump ( validateDate ( 14 , ‘H’ )); # true
    var_dump ( validateDate ( ’14’ , ‘H’ )); # true

    var_dump ( validateDate ( ‘2012-02-28T12:12:12+02:00’ , ‘Y-m-d\TH:i:sP’ )); # true
    # or
    var_dump ( validateDate ( ‘2012-02-28T12:12:12+02:00’ , DateTime :: ATOM )); # true

    var_dump ( validateDate ( ‘Tue, 28 Feb 2012 12:12:12 +0200’ , ‘D, d M Y H:i:s O’ )); # true
    # or
    var_dump ( validateDate ( ‘Tue, 28 Feb 2012 12:12:12 +0200’ , DateTime :: RSS )); # true
    var_dump ( validateDate ( ‘Tue, 27 Feb 2012 12:12:12 +0200’ , DateTime :: RSS )); # false
    # .

    • Date/Time Functions
      • checkdate
      • date_​add
      • date_​create_​from_​format
      • date_​create_​immutable_​from_​format
      • date_​create_​immutable
      • date_​create
      • date_​date_​set
      • date_​default_​timezone_​get
      • date_​default_​timezone_​set
      • date_​diff
      • date_​format
      • date_​get_​last_​errors
      • date_​interval_​create_​from_​date_​string
      • date_​interval_​format
      • date_​isodate_​set
      • date_​modify
      • date_​offset_​get
      • date_​parse_​from_​format
      • date_​parse
      • date_​sub
      • date_​sun_​info
      • date_​sunrise
      • date_​sunset
      • date_​time_​set
      • date_​timestamp_​get
      • date_​timestamp_​set
      • date_​timezone_​get
      • date_​timezone_​set
      • date
      • getdate
      • gettimeofday
      • gmdate
      • gmmktime
      • gmstrftime
      • idate
      • localtime
      • microtime
      • mktime
      • strftime
      • strptime
      • strtotime
      • time
      • timezone_​abbreviations_​list
      • timezone_​identifiers_​list
      • timezone_​location_​get
      • timezone_​name_​from_​abbr
      • timezone_​name_​get
      • timezone_​offset_​get
      • timezone_​open
      • timezone_​transitions_​get
      • timezone_​version_​get
      • Copyright © 2001-2023 The PHP Group
      • My PHP.net
      • Contact
      • Other PHP.net sites
      • Privacy policy

      getdate

      Returns an associative array containing the date information of the timestamp , or the current local time if timestamp is omitted or null .

      Parameters

      The optional timestamp parameter is an int Unix timestamp that defaults to the current local time if timestamp is omitted or null . In other words, it defaults to the value of time() .

      Return Values

      Returns an associative array of information related to the timestamp . Elements from the returned associative array are as follows:

      Key elements of the returned associative array

      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 .

      Changelog

      Version Description
      8.0.0 timestamp is nullable now.

      Как определить дату и время пользователя в php? [дубликат]

      Как определить дату и время у пользователя? Если зайдет он на сайт, находясь в Москве, то вывести время в Москве, если в Нью-Йорке — нью-йоркское.
      Пытался определять с помощью getdate() , localtime() , date(‘h-i-s’)
      Выводит везде одно и то же время — берлинское.

      Отслеживать
      задан 26 июл 2015 в 13:45
      Daulet Myrzan Daulet Myrzan
      71 2 2 серебряных знака 10 10 бронзовых знаков

      1 ответ 1

      Сортировка: Сброс на вариант по умолчанию

      Пытался определять с помощью getdate(), localtime(), date(‘h-i-s’) Выводит везде одно и то же время — берлинское.

      Так как php работает на сервере, то и функции возвращают серверное время.

      Чтобы получить время пользователя, надо на его компьютере запустить код определения времени. Для этого подходит javascript и его функции работы с датой https://learn.javascript.ru/datetime

      Дальше: если нужно ли время юзера знать на сервере, тогда придется отправлять полученное время или часовой пояс на сервер посредством ajax например, если время на сервере не нужно, а требуется пересчитать все метки времени на отображаемой странице, то следует с сервера в этой странице передавать его часовой пояс, чтобы js вычислял разницу с часовым поясом пользователя и производил пересчет.

      P.S. Совсем хитрый вариант: по ip юзера получать его местонахождение, узнавать часовой пояс и прямо на сервере пересчитывать время.

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