(PHP 5 >= 5.5.0, PHP 7) Creates a new object with modified timestamp

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

(PECL hrtime >= 0.4.3) Whether the measurement is running.

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

(PHP 5 >= 5.3.0, PHP 7) Alias of

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

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

(PHP 5 >= 5.3.0, PHP 7) Subtracts an amount of days, months, years, hours, minutes and seconds from a DateTime

(PHP 5 >= 5.3.0, PHP 7) Alias of

(PHP 4, PHP 5, PHP 7) Get number of days after March 21 on which Easter falls for a given year