Definition and Usage
The date() function formats a local date and time, and returns the formatted date string.
Syntax -: date(format,timestamp);
Parameter Description
format Required. Specifies the format of the outputted date string. The following characters can be used:
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)
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