Php сменить формат даты

date() – форматирование даты PHP

date($format, $timestamp) – форматирует дату/время по шаблону, где:

Результат работы функции зависит от настроек часового пояса, установить его можно следующем образом:

Основные параметры шаблона

Символ	Описание	Пример возвращаемого значения
День
j	День месяца без ведущего нуля	от 1 до 31
d	День месяца, 2 цифры с ведущим нулём	от 01 до 31
l	Полное наименование дня недели	от Sunday до Saturday
D	День недели, 3 символа	от Mon до Sun
z	Порядковый номер дня в году	От 0 до 365
Неделя
N	Порядковый номер дня недели	от 1 (понедельник) до 7 (воскресенье)
W	Порядковый номер недели года	Например: 42 (42-я неделя года)
Месяц
n	Порядковый номер месяца без ведущего нуля	от 1 до 12
m	Порядковый номер месяца с ведущим нулём	от 01 до 12
F	Полное название месяца	от January до December
M	Сокращенное наименование месяца, 3 символа	от Jan до Dec
t	Количество дней в месяце	от 28 до 31
Год
Y	Год, 4 цифры	2019
y	Год, 2 цифры	19
Время
g	Часы в 12-часовом формате без ведущего нуля	от 1 до 12
h	Часы в 12-часовом формате с ведущим нулём	от 01 до 12
G	Часы в 24-часовом формате без ведущего нуля	от 0 до 23
H	Часы в 24-часовом формате с ведущим нулём	от 00 до 23
i	Минуты с ведущим нулём	от 00 до 59
s	Секунды с ведущим нулём	от 00 до 59
v	Миллисекунды	123
Полная дата/время
c	Дата в формате ISO 8601	2004-02-12T15:19:21+00:00
r	Дата в формате RFC 2822	Thu, 21 Dec 2000 16:01:07 +0200

дд.мм.ггг (dd.mm.yyyy)

Самый распространенные форматы: dd.mm.yyyy и dd.mm.yyyy hh:ss .

echo date('d.m.Y'); // 22.07.2023 echo date('d.m.Y H:i'); // 22.07.2023 04:35 echo date('d.m.Y H:i:s'); // 22.07.2023 04:35:40

гггг-мм-дд (yyyy.mm.dd)

Используется в MySQL тип поля DATE.

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date_format

The format of the outputted date string . See the formatting options below. There are also several predefined date constants that may be used instead, so for example DATE_RSS contains the format string ‘D, d M Y H:i:s’ .

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	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.	Examples: 1999 or 2003
X	An expanded full numeric representation of a year, at least 4 digits, with — for years BCE, and + for years CE.	Examples: -0055 , +0787 , +1999 , +10191
x	An expanded full numeric representation if requried, or a standard full numeral representation if possible (like Y ). At least four digits. Years BCE are prefixed with a — . Years beyond (and including) 10000 are prefixed by a + .	Examples: -0055 , 0787 , 1999 , +10191
Y	A full numeric representation of a year, at least 4 digits, with — for years BCE.	Examples: -0055 , 0787 , 1999 , 2003 , 10191
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. Note that date() will always generate 000000 since it takes an int parameter, whereas DateTime::format() does support microseconds if DateTime was created with microseconds.	Example: 654321
v	Milliseconds. Same note applies as for u .	Example: 654
Timezone	—	—
e	Timezone identifier	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) without colon between hours and minutes	Example: +0200
P	Difference to Greenwich time (GMT) with colon between hours and minutes	Example: +02:00
p	The same as P , but returns Z instead of +00:00 (available as of PHP 8.0.0)	Examples: Z or +02:00
T	Timezone abbreviation, if known; otherwise the GMT offset.	Examples: EST , MDT , +05
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	2004-02-12T15:19:21+00:00
r	» RFC 2822/» RFC 5322 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 int timestamps the u format character is only useful when using the date_format() function with user based timestamps created with date_create() .

Return Values

Returns the formatted date string on success.

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PHP date_format() Function

Return a new DateTime object, and then format the date:

Definition and Usage

The date_format() function returns a date formatted according to the specified format.

Note: This function does not use locales (all output is in English).

Tip: Also look at the date() function, which formats a local date/time.

Syntax

Parameter Values

• d — The day of the month (from 01 to 31)
• D — A textual representation of a day (three letters)
• j — The day of the month without leading zeros (1 to 31)
• l (lowercase ‘L’) — A full textual representation of a day
• N — The ISO-8601 numeric representation of a day (1 for Monday, 7 for Sunday)
• S — The English ordinal suffix for the day of the month (2 characters st, nd, rd or th. Works well with j)
• w — A numeric representation of the day (0 for Sunday, 6 for Saturday)
• z — The day of the year (from 0 through 365)
• W — The ISO-8601 week number of year (weeks starting on Monday)
• F — A full textual representation of a month (January through December)
• m — A numeric representation of a month (from 01 to 12)
• M — A short textual representation of a month (three letters)
• n — A numeric representation of a month, without leading zeros (1 to 12)
• t — The number of days in the given month
• L — Whether it’s a leap year (1 if it is a leap year, 0 otherwise)
• o — The ISO-8601 year number
• Y — A four digit representation of a year
• y — A two digit representation of a year
• a — Lowercase am or pm
• A — Uppercase AM or PM
• B — Swatch Internet time (000 to 999)
• g — 12-hour format of an hour (1 to 12)
• G — 24-hour format of an hour (0 to 23)
• h — 12-hour format of an hour (01 to 12)
• H — 24-hour format of an hour (00 to 23)
• i — Minutes with leading zeros (00 to 59)
• s — Seconds, with leading zeros (00 to 59)
• u — Microseconds (added in PHP 5.2.2)
• e — The timezone identifier (Examples: UTC, GMT, Atlantic/Azores)
• I (capital i) — Whether the date is in daylights savings time (1 if Daylight Savings Time, 0 otherwise)
• O — Difference to Greenwich time (GMT) in hours (Example: +0100)
• P — Difference to Greenwich time (GMT) in hours:minutes (added in PHP 5.1.3)
• T — Timezone abbreviations (Examples: EST, MDT)
• Z — Timezone offset in seconds. The offset for timezones west of UTC is negative (-43200 to 50400)
• c — The ISO-8601 date (e.g. 2013-05-05T16:34:42+00:00)
• r — The RFC 2822 formatted date (e.g. Fri, 12 Apr 2013 12:01:05 +0200)
• U — The seconds since the Unix Epoch (January 1 1970 00:00:00 GMT)

and the following predefined constants can also be used (available since PHP 5.1.0):

• DATE_ATOM — Atom (example: 2013-04-12T15:52:01+00:00)
• DATE_COOKIE — HTTP Cookies (example: Friday, 12-Apr-13 15:52:01 UTC)
• DATE_ISO8601 — ISO-8601 (example: 2013-04-12T15:52:01+0000)
• DATE_RFC822 — RFC 822 (example: Fri, 12 Apr 13 15:52:01 +0000)
• DATE_RFC850 — RFC 850 (example: Friday, 12-Apr-13 15:52:01 UTC)
• DATE_RFC1036 — RFC 1036 (example: Fri, 12 Apr 13 15:52:01 +0000)
• DATE_RFC1123 — RFC 1123 (example: Fri, 12 Apr 2013 15:52:01 +0000)
• DATE_RFC2822 — RFC 2822 (Fri, 12 Apr 2013 15:52:01 +0000)
• DATE_RFC3339 — Same as DATE_ATOM (since PHP 5.1.3)
• DATE_RSS — RSS (Fri, 12 Aug 2013 15:52:01 +0000)
• DATE_W3C — World Wide Web Consortium (example: 2013-04-12T15:52:01+00:00)

Technical Details

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Convert One Date Format to Another in PHP

1. Use date() and strtotime() Functions to Convert One Date Format to Another in PHP
2. Use createFromFormat() and format() Functions to Convert One Date Format to Another in PHP

In this article, we will introduce methods to convert one Date format to another in PHP.

Use date() and strtotime() Functions to Convert One Date Format to Another in PHP

The date() function converts a timestamp to a date . The correct syntax to use this function is as follows

$format is the specific format in which the date is converted.

$timestamp is an optional parameter. It gives the date according to the timestamp passed. If it omitted, then we will get the current date .

The function strtotime() is a built-in function in PHP. This function converts a date to the time. The correct syntax to use this function is as follows.

strtotime($dateString, $timeNow); 

$dateString is a mandatory parameter, and it is the string representation of a date.

$timeNow is an optional parameter. It is the timestamp that is used for calculating relative dates.

php $originalDate = "2020-04-29"; //original date is in format YYYY-mm-dd  $timestamp = strtotime($originalDate); $newDate = date("m-d-Y", $timestamp ); echo "The new date is $newDate."; ?> 

We have used date() and strtotime() function to convert one date format to another. The function strtotime() has converted the original date to a timestamp. This timestamp is then converted to date of the required format using date() function.

Use createFromFormat() and format() Functions to Convert One Date Format to Another in PHP

The function createFromFormat() is a built-in function in PHP. This function converts a timestamp or date string to a DateTime object. The correct syntax to use this function is as follows.

DateTime::createFromFormat($format, $time, $timezone); 

The variable $format is the format of the date, $time is the time or date given in string, and $timezone gives the time zone. The first two parameters are the mandatory parameters.

The format() function is used to format a date to the required format. The correct syntax to use this function is

$datetimeObject->format($formatString); 

The parameter $formatString specifies the required format.

php $originalDate = "2020-04-29"; //original date is in format YYYY-mm-dd  $DateTime = DateTime::createFromFormat('Y-m-d', $originalDate); $newDate = $DateTime->format('m-d-Y'); echo "The new date is $newDate."; ?> 

Here, we have created a DateTime object using createFromFormat() function. The DateTime object then calls the format() function to convert one date format to another.

Related Article — PHP Date

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