What is the usage of php date
php date is used to format local date and time and return a formatted date string. The syntax of this function is "date(format,timestamp);", where the parameter format represents the output date string. format.
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How to use php date
date() function formats local date and time and returns the formatted date string.
Syntax
date(format,timestamp);
Parameters
format
Required. Specifies the format of the output date string. The following characters are available:
d - day of the month (from 01 to 31)
D - textual representation of the day of the week (in three letters)
j - Day of the month without leading zeros (1 to 31)
l (lowercase 'L') - Full textual representation of the day of the week
N - ISO-8601 numeric representation of the day of the week (1 for Monday, 7 for Sunday)
S - English ordinal suffix for the day of the month (2 characters : st, nd, rd or th. Used with j)
w - Numerical representation of the day of the week (0 represents Sunday [Sunday], 6 represents Saturday [Saturday])
z - Day of the year (from 0 to 365)
W - Represents the day of the year in ISO-8601 number format (week starts with Monday)
F - Full textual representation of the month (January to December)
m - Numerical representation of the month (from 01 to 12)
M - Month A short text representation (in three letters) of
n - the numeric representation of the month without leading zeros (1 to 12)
t - the number of days contained in a given month
L - Whether it is a leap year (1 if it is a leap year, 0 otherwise)
o - The year number under the ISO-8601 standard
Y - The four-digit year Represents
y - Two-digit representation of the year
a - Represents lowercase: am or pm
A - Represents uppercase: AM or PM
B - Swatch Internet Time (000 to 999)
g - 12-hour clock without leading zeros (1 to 12)
G - 24-hour clock without leading zeros (0 to 23)
h - 12-hour clock with leading zeros (01 to 12)
H - 24-hour clock with leading zeros (00 to 23)
i - Minutes, with leading zeros (00 to 59)
s - Seconds, with leading zeros (00 to 59)
u - Microseconds (new in PHP 5.2.2)
e - Time zone identifier (e.g. UTC, GMT, Atlantic/Azores)
I (uppercase i) - Whether the date is in daylight saving time (1 if it is, 0 otherwise)
O - Difference in Greenwich Mean Time (GMT), in hours (Example: 0100)
P - Difference in Greenwich Mean Time (GMT), Units are hours:minutes (new in PHP 5.1.3)
T - abbreviation for time zone (examples: EST, MDT)
Z - time zone offset in seconds . Negative time zone offsets west of UTC (-43200 to 50400)
c - ISO-8601 standard dates (e.g. 2013-05-05T16:34:42 00:00)
r - A date in RFC 2822 format (e.g. Fri, 12 Apr 2013 12:01:05 0200)
U - The number of seconds elapsed since the Unix epoch (January 1 1970 00:00:00 GMT)
At the same time, you can also use the following predefined constants (available starting from PHP 5.1.0):
DATE_ATOM - Atom (for 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: Friday, 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 (as of 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)
timestamp Available select. Specifies an integer Unix timestamp. The default is the current local time (time()).
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