PHP unixtojd() Function

In this chapter you will learn:

1. Definition for PHP unixtojd() Function
2. Syntax for PHP unixtojd() Function
3. Parameter for PHP unixtojd() Function
4. Return value from PHP unixtojd() Function
5. Example - Convert Unix timestamp to Julian Day Count

Definition

The unixtojd() function converts Unix timestamp to Julian Day Count.

Syntax

PHP unixtojd() Function has the following syntax.

Parameter

• timestamp - Optional. Specifies A unix timestamp to convert

Return

PHP unixtojd() Function returns the Julian Day number for a Unix timestamp (seconds since 1.1.1970), or for the current day if no timestamp is given.

Example

Convert Unix timestamp to Julian Day Count

<?php
echo unixtojd();
?>

The code above generates the following result.

Next chapter...

What you will learn in the next chapter:

1. What is PHP class_exists() function
2. Syntax for PHP class_exists() function
3. Parameters for PHP class_exists() function
4. Return Values
5. Example - Check that the class exists before trying to use it
6. Example - autoload parameter example

PHP 5 Predefined Calendar Constants

PHP cal_days_in_month() Function

PHP cal_from_jd() Function

PHP cal_info() Function

PHP cal_to_jd() Function

PHP easter_date() Function

PHP easter_days() Function

PHP frenchtojd() Function

PHP gregoriantojd() Function

PHP jddayofweek() Function

PHP jdmonthname() Function

PHP jdtofrench() Function

PHP jdtogregorian() Function

PHP jdtojewish() Function

PHP jdtojulian() Function

PHP jdtounix() Function

PHP jewishtojd() Function

PHP juliantojd() Function

PHP unixtojd() Function