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1. www.php.net › manual › enPHP: cal_to_jd - Manual

   www.php.net › manual › en

   cal_to_jd () calculates the Julian day count for a date in the specified calendar. Supported calendar s are CAL_GREGORIAN, CAL_JULIAN, CAL_JEWISH and CAL_FRENCH.

2. www.w3schools.com › php › func_cal_cal_to_jdPHP cal_to_jd () Function - W3Schools

   www.w3schools.com › php › func_cal_cal_to_jd

   Definition and Usage The cal_to_jd () function converts a date in a specified calendar to Julian Day Count.

3. www.geeksforgeeks.org › php › php-cal_to_jd-functionPHP | cal_to_jd() Function - GeeksforGeeks

   www.geeksforgeeks.org › php › php-cal_to_jd-function

   Jul 11, 2025 · Your All-in-One Learning Portal: GeeksforGeeks is a comprehensive educational platform that empowers learners across domains-spanning computer science and programming, school education, upskilling, commerce, software tools, competitive exams, and more.

4. www.tutorialspoint.com › php › php_function_cal_toPHP Function cal_to_jd - Online Tutorials Library

   www.tutorialspoint.com › php › php_function_cal_to

   Learn how to use the PHP function cal_to_jd for converting calendar dates to Julian Day Count. Explore examples and syntax for effective programming.

5. php-safari.com › function › cal_to_jdPHP function - cal_to_jd | PHP Safari

   php-safari.com › function › cal_to_jd

   <?php cal_to_jd( int $calendar, int $month, int $day, int $year): int

6. www.w3docs.com › learn-php › cal-to-jdcal_to_jd () - W3docs

   www.w3docs.com › learn-php › cal-to-jd

   Mar 2, 2023 · In the above code, the mktime() function creates a Unix timestamp from the given calendar date. The jdtojulian() function converts the Unix timestamp to Julian Day Number. The result is then displayed using the echo statement. Conclusion In conclusion, converting calendar dates to Julian Day Numbers using PHP functions is a simple and effective method that can be used in various scientific and ...

7. phpdoctest.github.io › en › functionPHP Manual: Converts from a supported calendar to Julian Day ...

   phpdoctest.github.io › en › function

   cal_to_jd calculates the Julian day count for a date in the specified calendar. Supported calendar s are CAL_GREGORIAN, CAL_JULIAN, CAL_JEWISH and CAL_FRENCH.