Date and Time Functions in PHP

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Date and Time Functions in PHP

1. The date( ) function
Use to get date.
<? 
$today = date('m-d-Y');
echo $today; // Print Current Month - Current Day - Current Year
echo date('d-m-Y');
echo ('Y-m-d');
?>

2. Using the date( ) function
There are numbers of parameters that you can use in date function.

`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 (added in PHP 5.1.0)	`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 (added in PHP 4.1.0)	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 year number. 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. (added in PHP 5.1.0)	Examples: `1999` or `2003`
`Y`	A full numeric representation of a year,4 digits	Examples: `1999` or `2003`
`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`
Timezone	---	---
`e`	Timezone identifier (added in PHP 5.1.0)	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) in hours	Example: `0200`
`P`	Difference to Greenwich time (GMT) with colon between hours and minutes (added in PHP 5.1.3)	Example: `02:00`
`T`	Timezone setting of this machine	Examples: `EST`,`MDT` ...
`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 (added in PHP 5)	2004-02-12T15:19:21 00:00
`r`	RFC 2822 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()