08-23-2013
UNIX System Programming Certification Program
Hi,
I was working in an IT firm. My stream was UNIX, C, C++.
worked for an year and half and then left the job.
there has been a gap of 2 years already and wanna get back again. i have some 6 more months to that. want to do some certification to help me get back.
c,c++ are fine. unix system programming..need something for it
P.S. i love programming and wont really take me much time to revise everything.
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LEARN ABOUT PHP
easter_days
EASTER_DAYS(3) 1 EASTER_DAYS(3)
easter_days - Get number of days after March 21 on which Easter falls for a given year
SYNOPSIS
int easter_days ([int $year = date("Y")], [int $method = CAL_EASTER_DEFAULT])
DESCRIPTION
Returns the number of days after March 21 on which Easter falls for a given year. If no year is specified, the current year is assumed.
This function can be used instead of easter_date(3) to calculate Easter for years which fall outside the range of Unix timestamps (i.e.
before 1970 or after 2037).
The date of Easter Day was defined by the Council of Nicaea in AD325 as the Sunday after the first full moon which falls on or after the
Spring Equinox. The Equinox is assumed to always fall on 21st March, so the calculation reduces to determining the date of the full moon
and the date of the following Sunday. The algorithm used here was introduced around the year 532 by Dionysius Exiguus. Under the Julian
Calendar (for years before 1753) a simple 19-year cycle is used to track the phases of the Moon. Under the Gregorian Calendar (for years
after 1753 - devised by Clavius and Lilius, and introduced by Pope Gregory XIII in October 1582, and into Britain and its then colonies in
September 1752) two correction factors are added to make the cycle more accurate.
PARAMETERS
o $year
- The year as a positive number. If omitted, defaults to the current year according to the local time.
o $method
- Allows Easter dates to be calculated based on the Gregorian calendar during the years 1582 - 1752 when set to CAL_EASTER_ROMAN.
See the calendar constants for more valid constants.
RETURN VALUES
The number of days after March 21st that the Easter Sunday is in the given $year.
EXAMPLES
Example #1
easter_days(3) example
<?php
echo easter_days(1999); // 14, i.e. April 4
echo easter_days(1492); // 32, i.e. April 22
echo easter_days(1913); // 2, i.e. March 23
?>
SEE ALSO
easter_date(3).
PHP Documentation Group EASTER_DAYS(3)