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PHP cal_to_jd () function

PHP Calendar Reference Manual PHP Calendar Reference Manual

Examples

The June 20, 2007 (Gregorian calendar) is converted to Julian day count:

<?php
$d=cal_to_jd(CAL_GREGORIAN,6,20,2007);
echo $d;
?>

Running instance »

Definition and Usage

cal_to_jd () function to convert the specified calendar dates to Julian day count.

grammar

cal_to_jd( calendar,month,day,year);

参数 描述
calendar 必需。规定要使用的历法。必须为下面这些常量之一:
  • CAL_GREGORIAN
  • CAL_JULIAN
  • CAL_JEWISH
  • CAL_FRENCH
month 必需。一个数字,规定月。
day 必需。一个数字,规定日。
year 必需。一个数字,规定年。

technical details

return value: Returns the Julian day numbers.
PHP version: 4.1+


PHP Calendar Reference Manual PHP Calendar Reference Manual