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"skip all Fridays and Saturdays but include Sundays") or to set up dates that should always be skipped (e.g. The function could certainly be made much more powerful, to allow you to set different days to be ignored (e.g.

I've tested it pretty strenuously but date arithmetic is complicated and there's always the possibility I missed something, so please feel free to check my math. It replicates the functionality of OpenOffice's NETWORKDAYS function - you give it a start date, an end date, and an array of any holidays you want skipped, and it'll tell you the number of business days (inclusive of the start and end days!) between them. I couldn't find a simple way to do that in PHP, so I threw this together. Monday-Friday, excluding holidays) between any two given dates. Most spreadsheet programs have a rather nice little built-in function called NETWORKDAYS to calculate the number of business days (i.e. " Įcho "Day ", date ( 'w', strtotime ( ' Monday next week' )), " of next week is ", date ( 'd M Y', strtotime ( ' Monday next week' )) This can produce different, and seemingly incorrect, results depending on your PHP version and your choice of 'w' or 'N' for the Numeric representation of the day of the week:Įcho "Today is Sun, day ", date ( 'N', strtotime ( '' )), " of this week. Since 5.6.23, Relative Formats for the start of the week align with ISO-8601 (1=Monday,7=Sunday). Prior to PHP 5.6.23, Relative Formats for the start of the week aligned with PHP's (0=Sunday,6=Saturday). Its complexity derives from the fact that the calculation is based on a combination of solar and lunar calendars. This algorithm was first proposed by the mathematician/physicist Gauss. (In the old Julian reckoning, EVERY 4th year was a leap-year.) the century is divisible by 4 but not by 10. This is because the Julian calendar (from which the Easter date is calculated) deviates from the Gregorian by one day for each century-year that is NOT a leap-year, i.e. Note that incorrect results will be returned for years less than 1601 or greater than 2399. The following function will return the date (on the Gregorian calendar) for Orthodox Easter (Pascha). Working almost identical to date() function only as a supplement has the time zone option. This is the best and fastest solution for this problem. _date ( "Y-m-d | h:i:sa", false, 'Europe/Belgrade' ). _date ( "Y-m-d | h:i:sa", false, 'America/New_York' ). Return date ( $format, ( $timestamp != false ?(int) $timestamp : $myDateTime -> format ( 'U' )) + $offset ) Įcho 'System Date/Time: '. If you have a problem with the different time zone, this is the solution for that.

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