(PHP 5 >= 5.2.0, PHP 7) Returns associative array containing dst, offset and the timezone name

(PHP 4, PHP 5, PHP 7) Get the local time array

(PHP 5 >= 5.2.0, PHP 7) Alias of

(PHP 5 >= 5.5.0, PHP 7) Returns new DateTimeImmutable object formatted according to the specified format

(PHP 5 >= 5.5.0, PHP 7) Alias of

(PHP 5 >= 5.5.0, PHP 7) Returns the warnings and errors

(PHP 5 >= 5.5.0, PHP 7) Sets the ISO date

(PHP 5 >= 5.6.0, PHP 7) Returns new DateTimeImmutable object encapsulating the given DateTime object

(PHP 5 >= 5.3.0, PHP 7) Creates a new DateInterval object

(PHP 4, PHP 5, PHP 7) Validate a Gregorian date