Timestamp from time php

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time

Returns the current time measured in the number of seconds since the Unix Epoch (January 1 1970 00:00:00 GMT).

Note:

Unix timestamps do not contain any information with regards to any local timezone. It is recommended to use the DateTimeImmutable class for handling date and time information in order to avoid the pitfalls that come with just Unix timestamps.

Parameters

This function has no parameters.

Return Values

Returns the current timestamp.

Examples

Example #1 time() example

The above example will output something similar to:

Notes

Timestamp of the start of the request is available in $_SERVER[‘REQUEST_TIME’] .

User Contributed Notes 1 note

time() gives the timestamp of Greenwich Mean Time (GMT) which is defined as the official time for the whole earth. You get the local time by adding the time zone offset to this timestamp.

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
Источник

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() .

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()

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).

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
- 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
  Источник

Timestamp from time php