


How to convert between the Julian day count of the PHP calendar and the date period of the French Republican calendar
In the previous article, we learned what the Julian calendar is, what the Julian day is, and we also know "How to convert the date of the Julian calendar to the Julian calendar in PHP Day Count》, this time let’s take a look at how the Julian day count converts to the dates of the French Republican calendar.
In this article, the editor will introduce to you how to convert dates in the French Republican calendar into Julian day counting. I believe that everyone now has a certain understanding of Julian day counting, but let’s learn more about it. , to deepen the impression.
Julian Day (Julian Day) is a timekeeping method that calculates time based on consecutive days within the Julian cycle. It is mainly used by astronomers.
The Julian Day Number (JDN) is calculated starting from noon Greenwich Mean Time and includes a whole day. The starting point (0 day) goes back to the Julian calendar AD 12 noon on January 1, 4713 BC (in the Gregorian calendar it is November 24, 4714 BC
). This date is the common starting point of the three multi-year cycles, and It is the closest starting point in history to modern times. For example, UT12:00
on January 1, 2000 is Julian Day 2,451,545
. Next let’s take a look at an example:
If it is September 22, 1805 in the French Republican calendar, what is its Julian day count? What about the other way around?
<?php $jd=frenchtojd(9,22,13); echo $jd . "<br>"; echo jdtofrench($jd); ?>
The result is
2380484 9/22/13
In this example, we use frenchtojdh and jdtofrench and two functions.
After reading this example, I believe everyone has a certain understanding and own opinions on frenchtojdh and jdtofrench and the two functions. Without further ado, let’s introduce them in detail
frenchtojd() function converts the French Republican calendar date into Julian day count. The jdtofrench() function converts a Julian day count to a French Republican calendar date.
jdtofrench functionSyntax
jdtofrench(数字(儒略日计数));
frenchtojd function
frenchtojd(月份,日期,年份);
: The function only converts dates between 1 and 14 years.
When using the frenchtojd() function, please note that the first parameter of the function is the month, the second parameter is the day, and the third parameter is the year. You cannot write the order Oh wrong. If written incorrectly, the correct number will not be returned and 0 will be returned.If you want to know more about php, you can click here→"
php video tutorial"←, everything you want is here
The above is the detailed content of How to convert between the Julian day count of the PHP calendar and the date period of the French Republican calendar. For more information, please follow other related articles on the PHP Chinese website!

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics











PHP is a scripting language widely used on the server side, especially suitable for web development. 1.PHP can embed HTML, process HTTP requests and responses, and supports a variety of databases. 2.PHP is used to generate dynamic web content, process form data, access databases, etc., with strong community support and open source resources. 3. PHP is an interpreted language, and the execution process includes lexical analysis, grammatical analysis, compilation and execution. 4.PHP can be combined with MySQL for advanced applications such as user registration systems. 5. When debugging PHP, you can use functions such as error_reporting() and var_dump(). 6. Optimize PHP code to use caching mechanisms, optimize database queries and use built-in functions. 7

PHP and Python each have their own advantages, and the choice should be based on project requirements. 1.PHP is suitable for web development, with simple syntax and high execution efficiency. 2. Python is suitable for data science and machine learning, with concise syntax and rich libraries.

PHP and Python each have their own advantages, and choose according to project requirements. 1.PHP is suitable for web development, especially for rapid development and maintenance of websites. 2. Python is suitable for data science, machine learning and artificial intelligence, with concise syntax and suitable for beginners.

PHP is widely used in e-commerce, content management systems and API development. 1) E-commerce: used for shopping cart function and payment processing. 2) Content management system: used for dynamic content generation and user management. 3) API development: used for RESTful API development and API security. Through performance optimization and best practices, the efficiency and maintainability of PHP applications are improved.

PHP is still dynamic and still occupies an important position in the field of modern programming. 1) PHP's simplicity and powerful community support make it widely used in web development; 2) Its flexibility and stability make it outstanding in handling web forms, database operations and file processing; 3) PHP is constantly evolving and optimizing, suitable for beginners and experienced developers.

PHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.

PHP is suitable for web development, especially in rapid development and processing dynamic content, but is not good at data science and enterprise-level applications. Compared with Python, PHP has more advantages in web development, but is not as good as Python in the field of data science; compared with Java, PHP performs worse in enterprise-level applications, but is more flexible in web development; compared with JavaScript, PHP is more concise in back-end development, but is not as good as JavaScript in front-end development.

PHP and Python have their own advantages and disadvantages, and the choice depends on project needs and personal preferences. 1.PHP is suitable for rapid development and maintenance of large-scale web applications. 2. Python dominates the field of data science and machine learning.
