(PHP 5 >= 5.3.0, PHP 7) Sets up a DateInterval from the relative parts of the string

(PECL hrtime >= 0.4.3) Get elapsed time for the last interval.

(PHP 4, PHP 5, PHP 7) Converts a date in the Jewish Calendar to Julian Day Count

(PHP 5 >= 5.5.0, PHP 7) Adds an amount of days, months, years, hours, minutes and seconds

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

(PECL hrtime >= 0.4.3) Get elapsed time for all intervals.

(PHP 4 >= 4.1.0, PHP 5, PHP 7) Return the number of days in a month for a given year and calendar

(PHP 5 >= 5.2.0, PHP 7) The __wakeup handler

(PHP 5 >= 5.2.0, PHP 7) Alters the timestamp

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