gregoriantojd

Function • Params and return types changed in PHP 8.0

Converts a Gregorian date to Julian Day Count.

PHP 5
PHP 7
PHP 8.0
Improved
PHP 8.1
PHP 8.2-8.3
PHP 8.4
PHP 8.5
PHP 8.6

gregoriantojd Function synopsis

gregoriantojd(
    int $month,
    int $day,
    int $year
  ): int

Parameters

$month

Typeint

The month as a number from 1 (for January) to 12 (for December)

$day

Typeint

The day as a number from 1 to 31. If the month has less days then given, overflow occurs; see the example below.

$year

Typeint

The year as a number between -4714 and 9999. Negative numbers mean years B.C., positive numbers mean years A.D. Note that there is no year 0; December 31, 1 B.C. is immediately followed by January 1, 1 A.D.

Return value

Typeint

The julian day for the given gregorian date as an integer. Dates outside the valid range return 0.

Changes to the gregoriantojd Function

PHP 8.0

  • Return type added: int
  • Parameter type added for parameter #1 ($month): int
  • Parameter type added for parameter #2 ($day): int
  • Parameter type added for parameter #3 ($year): int
  gregoriantojd(
-     $month,
+     int $month,
-     $day,
+     int $day,
-     $year
+     int $year
-   )
+   ): int

gregoriantojd Function Availability

PHP VersionAvailability
PHP 8.6Upcoming Release Yes
PHP 8.5Supported (Latest) Yes
PHP 8.4Supported Yes
PHP 8.3Security-Fixes Only Yes
PHP 8.2Security-Fixes Only Yes
PHP 8.1Unsupported Yes
PHP 8.0Unsupported Yes
PHP 7.4Unsupported Yes
PHP 7.3Unsupported Yes
PHP 7.2Unsupported Yes
PHP 7.1Unsupported Yes
PHP 7.0Unsupported Yes
PHP 5.6Unsupported Yes
PHP 5.5Unsupported Yes
PHP 5.4Unsupported Yes
PHP 5.3Unsupported Yes