Funciones de calendario de PHP
Introducción al Calendario PHP
La extensión de calendario contiene funciones que simplifican la conversión entre diferentes formatos de calendario.
Se basa en la cuenta de días julianos, que es una cuenta de días a partir del 1 de enero de 4713 a.
Nota: Para convertir entre formatos de calendario, primero debe convertir a Julian Day Count, luego al calendario de su elección.
Nota: ¡El conteo de días julianos no es lo mismo que el calendario juliano!
Instalación
Para que estas funciones funcionen, debe compilar PHP con --enable-calendar.
La versión de Windows de PHP tiene soporte incorporado para esta extensión.
Funciones de calendario de PHP
| Function | Description |
|---|---|
| cal_days_in_month() | Returns the number of days in a month for a specified year and calendar |
| cal_from_jd() | Converts a Julian Day Count into a date of a specified calendar |
| cal_info() | Returns information about a specified calendar |
| cal_to_jd() | Converts a date in a specified calendar to Julian Day Count |
| easter_date() | Returns the Unix timestamp for midnight on Easter of a specified year |
| easter_days() | Returns the number of days after March 21, that the Easter Day is in a specified year |
| frenchtojd() | Converts a French Republican date to a Julian Day Count |
| gregoriantojd() | Converts a Gregorian date to a Julian Day Count |
| jddayofweek() | Returns the day of the week |
| jdmonthname() | Returns a month name |
| jdtofrench() | Converts a Julian Day Count to a French Republican date |
| jdtogregorian() | Converts a Julian Day Count to a Gregorian date |
| jdtojewish() | Converts a Julian Day Count to a Jewish date |
| jdtojulian() | Converts a Julian Day Count to a Julian date |
| jdtounix() | Converts Julian Day Count to Unix timestamp |
| jewishtojd() | Converts a Jewish date to a Julian Day Count |
| juliantojd() | Converts a Julian date to a Julian Day Count |
| unixtojd() | Converts Unix timestamp to Julian Day Count |
Constantes de calendario predefinidas de PHP
| Constant | Type | PHP Version |
|---|---|---|
| CAL_GREGORIAN | Integer | PHP 4 |
| CAL_JULIAN | Integer | PHP 4 |
| CAL_JEWISH | Integer | PHP 4 |
| CAL_FRENCH | Integer | PHP 4 |
| CAL_NUM_CALS | Integer | PHP 4 |
| CAL_DOW_DAYNO | Integer | PHP 4 |
| CAL_DOW_SHORT | Integer | PHP 4 |
| CAL_DOW_LONG | Integer | PHP 4 |
| CAL_MONTH_GREGORIAN_SHORT | Integer | PHP 4 |
| CAL_MONTH_GREGORIAN_LONG | Integer | PHP 4 |
| CAL_MONTH_JULIAN_SHORT | Integer | PHP 4 |
| CAL_MONTH_JULIAN_LONG | Integer | PHP 4 |
| CAL_MONTH_JEWISH | Integer | PHP 4 |
| CAL_MONTH_FRENCH | Integer | PHP 4 |
| CAL_EASTER_DEFAULT | Integer | PHP 4.3 |
| CAL_EASTER_ROMAN | Integer | PHP 4.3 |
| CAL_EASTER_ALWAYS_GREGORIAN | Integer | PHP 4.3 |
| CAL_EASTER_ALWAYS_JULIAN | Integer | PHP 4.3 |
| CAL_JEWISH_ADD_ALAFIM_GERESH | Integer | PHP 5.0 |
| CAL_JEWISH_ADD_ALAFIM | Integer | PHP 5.0 |
| CAL_JEWISH_ADD_GERESHAYIM | Integer | PHP 5.0 |