DateTime Class

Create a new DateTime Object

Use the new() keyword

The format() method

The format() method uses the same format flags as procedural date()

Headline format characters

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

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

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

Creating a Specfic Date - European Style

Can use DD-MM-YYYY

Creating a Specfic Date - US Style

Can use MM/DD/YYYY

Creating a Specfic Date - ISO Style

Can use YYYY-MM-DD

Relative Date Creation

Reserved words for creating relative dates

The getTimestamp() method

Retrieve as UNIX time stamp. Check whether 32 or 64 installation with PHP_INT_SIZE. 64-bit version of PHP echos 8, 32-bit version of PHP echos 4

The modify() method

Change the DateTime object.

Chaining - one method after another

Change the DateTime object.

Methods return the Object

Take care when running methods as they return the object.