目录

PHP 日历函数

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PHP日历介绍

日历扩展包含简化不同日历格式之间转换的功能。

它基于儒略日计数，即从公元前 4713 年 1 月 1 日开始的天数计数

笔记：要在日历格式之间进行转换，您必须首先转换为儒略日计数，然后转换为您选择的日历。

笔记：儒略日计数与儒略历不同！

安装

为了使这些功能发挥作用，您必须使用 --enable-calendar 编译 PHP。

Windows 版本的 PHP 内置了对此扩展的支持。

PHP 日历函数

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

PHP 预定义日历常量

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

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