Php get number days

How to Get Number of Days Between Two Dates in PHP

Are you want to calculate the difference between two dates in PHP? There are a simple way to get the number of days between two dates in PHP. Using the date_diff() function, you can easily count days between two dates in PHP.

The following script calculates the difference between two dates using PHP and shows the days count.

$date1 = date_create("2017-04-15");
$date2 = date_create("2017-05-18");

//difference between two dates
$diff = date_diff($date1,$date2);

//count days
echo 'Days Count - '.$diff->format("%a");
?>

Two PHP functions are used in the above script to get the number of days between two dates.

• date_create() – This function returns a new DateTime object.
• date_diff() – This function returns the difference between two DateTime objects.

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cal_days_in_month

This function will return the number of days in the month of year for the specified calendar .

Parameters

Calendar to use for calculation

Month in the selected calendar

Year in the selected calendar

Return Values

The length in days of the selected month in the given calendar

Examples

Example #1 cal_days_in_month() example

$number = cal_days_in_month ( CAL_GREGORIAN , 8 , 2003 ); // 31
echo «There were < $number >days in August 2003″ ;
?>

User Contributed Notes 5 notes

Here’s a one-line function I just wrote to find the numbers of days in a month that doesn’t depend on any other functions.

The reason I made this is because I just found out I forgot to compile PHP with support for calendars, and a class I’m writing for my website’s open source section was broken. So rather than recompiling PHP (which I will get around to tomorrow I guess), I just wrote this function which should work just as well, and will always work without the requirement of PHP’s calendar extension or any other PHP functions for that matter.

I learned the days of the month using the old knuckle & inbetween knuckle method, so that should explain the mod 7 part. 🙂

/*
* days_in_month($month, $year)
* Returns the number of days in a given month and year, taking into account leap years.
*
* $month: numeric month (integers 1-12)
* $year: numeric year (any integer)
*
* Prec: $month is an integer between 1 and 12, inclusive, and $year is an integer.
* Post: none
*/
// corrected by ben at sparkyb dot net
function days_in_month ( $month , $year )
<
// calculate number of days in a month
return $month == 2 ? ( $year % 4 ? 28 : ( $year % 100 ? 29 : ( $year % 400 ? 28 : 29 ))) : (( $month — 1 ) % 7 % 2 ? 30 : 31 );
>
?>

Enjoy,
David Bindel

function lastDayOfMonth(string $time, int $deltaMonth, string $format = ‘Y-m-d’)
try $year = date(‘Y’, strtotime($time));
$month = date(‘m’, strtotime($time));

$increaYear = floor(($deltaMonth + $month — 1) / 12);

$year += $increaYear;
$month = (($deltaMonth + $month) % 12) ?: 12;
$day = cal_days_in_month(CAL_GREGORIAN, $month, $year);

return $time . ‘ + ‘ . $deltaMonth . ‘ => ‘ . date($format, strtotime($year . ‘-‘ . $month . ‘-‘ . $day)) . «\n»;
> catch (Exception $e) throw $e;
>
>

This will work great in future dates but will give the wrong answer for dates before 1550 (approx) when leap year was introduced and the calendar lost a year or two.
Sorry now to be more specific it has been a while sine I had to account for those later dates and had to take that into account but just a heads up for others to watch out.

# PHP Calendar (version 2.3), written by Keith Devens

function generate_calendar ( $year , $month , $days = array(), $day_name_length = 3 , $month_href = NULL , $first_day = 0 , $pn = array()) $first_of_month = gmmktime ( 0 , 0 , 0 , $month , 1 , $year );

#remember that mktime will automatically correct if invalid dates are entered
# for instance, mktime(0,0,0,12,32,1997) will be the date for Jan 1, 1998
# this provides a built in «rounding» feature to generate_calendar()

$day_names = array(); #generate all the day names according to the current locale
for( $n = 0 , $t =( 3 + $first_day )* 86400 ; $n < 7 ; $n ++, $t += 86400 ) #January 4, 1970 was a Sunday
$day_names [ $n ] = ucfirst ( gmstrftime ( ‘%A’ , $t )); #%A means full textual day name

list( $month , $year , $month_name , $weekday ) = explode ( ‘,’ , gmstrftime ( ‘%m,%Y,%B,%w’ , $first_of_month ));
$weekday = ( $weekday + 7 — $first_day ) % 7 ; #adjust for $first_day
$title = htmlentities ( ucfirst ( $month_name )). ‘ ‘ . $year ; #note that some locales don’t capitalize month and day names

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Get Total Number of Days in PHP Month: A Comprehensive Guide

Learn how to get the total number of days in a PHP month with this comprehensive guide. Explore various methods, including date(), cal_days_in_month(), date_diff(), and more.

• Importance of Knowing the Number of Days in a Month
• Overview of Key Points
• Using the date() Function
• Using the cal_days_in_month() Function
• Using the date_diff() Function
• Using the get_days_in_month() Method
• Using cal_days_in_month() to Calculate the Number of Days in Each Month for a Given Year
• Counting the Number of Business Days in a Month
• Getting the Total Working Days of a Given Month
• Using the DateTime Class to Calculate the Difference Between Two Dates
• Laravel-Specific Methods for Getting Days in a Month
• Other helpful PHP code examples to get the total number of days in a month
• Conclusion
• How to count days in php?
• How to get total Sunday in a month in php?
• How many days in a month in general?
• What is Cal_gregorian in php?

Are you searching for an easy way to determine the number of days in a month using PHP? Look no further! This comprehensive guide will provide you with various methods to get the total number of days in a PHP month.

Importance of Knowing the Number of Days in a Month

Understanding the number of days in a month is essential in numerous programming scenarios. For instance, if you are creating a calendar application, calculating billing cycles, or scheduling events, knowing the total number of days in a month can help you achieve your goals.

Overview of Key Points

This guide will cover multiple methods to get the number of days in a PHP month, including:

• Using the date() function
• Using the cal_days_in_month() function
• Using the date_diff() function
• Using the get_days_in_month() method
• Using cal_days_in_month() to calculate the number of days in each month for a given year
• Counting the number of business days in a month
• Getting the total working days of a given month
• Using the DateTime class to calculate the difference between two dates
• Laravel-specific methods for getting days in a month

Without further ado, let’s dive into the various methods of getting the total number of days in a PHP month.

Using the date() Function

One of the easiest ways to get the number of days in a PHP month is by using the date() function. This function returns the current date or time in the specified format. By passing in “t” as the format, you can get the total number of days in the current month.

$days_in_month = date('t'); echo $days_in_month; 

This code will output the total number of days in the current month.

Using the cal_days_in_month() Function

The cal_days_in_month() function is another way to get the total number of days in a PHP month. This function requires passing in the calendar, month, and year as parameters to return the number of days in the specified month.

$month = 2; $year = 2022; $days_in_month = cal_days_in_month(CAL_GREGORIAN, $month, $year); echo $days_in_month; 

This code will output the total number of days in February 2022.

Using the date_diff() Function

The date_diff() function allows you to count the days between two dates. By setting the start date to the first day of the month and the end date to the last day of the month, you can get the total number of days in a PHP month.

$start_date = new DateTime('2022-02-01'); $end_date = new DateTime('2022-02-28'); $days_in_month = $end_date->diff($start_date)->format('%a') + 1; echo $days_in_month; 

This code will output the total number of days in February 2022.

Using the get_days_in_month() Method

The get_days_in_month() method is another easy way to get the total number of days in a PHP month. This method requires passing in the year and month as parameters to return the number of days in the specified month.

$month = 2; $year = 2022; $days_in_month = cal_days_in_month(CAL_GREGORIAN, $month, $year); echo $days_in_month; 

This code will output the total number of days in February 2022.

Using cal_days_in_month() to Calculate the Number of Days in Each Month for a Given Year

If you need to calculate the number of days in each month for a given year, you can use cal_days_in_month() function in a loop. Here’s an example:

$year = 2022; for ($month = 1; $month  $days_in_month = cal_days_in_month(CAL_GREGORIAN, $month, $year); echo "$month/$year: $days_in_month days\n"; > 

This code will output the total number of days in each month for 2022.

Counting the Number of Business Days in a Month

Business days are the weekdays excluding public holidays. To count the number of business days in a PHP month, you can use the date() function and the mktime() function.

$month = 2; $year = 2022; $business_days = 0; for ($day = 1; $day  $timestamp = mktime(0, 0, 0, $month, $day, $year); $weekday = date('w', $timestamp); if ($weekday >= 1 && $weekday  $business_days++; > > echo $business_days; 

This code will output the total number of business days in February 2022.

Getting the Total Working Days of a Given Month

Working days are weekdays excluding weekends and public holidays. To get the total working days of a given PHP month, you can use the getWorkingDays() function.

function getWorkingDays($year, $month)  $num_days = cal_days_in_month(CAL_GREGORIAN, $month, $year); $workdays = 0; for ($day = 1; $day <= $num_days; $day++)  $timestamp = mktime(0, 0, 0, $month, $day, $year); $weekday = date('w', $timestamp); if ($weekday >= 1 && $weekday <= 5)  $workdays++; > > return $workdays; >$month = 2; $year = 2022; $working_days = getWorkingDays($year, $month); echo $working_days; 

This code will output the total number of working days in February 2022.

Using the DateTime Class to Calculate the Difference Between Two Dates

The DateTime class provides a powerful way to perform date calculations and manipulations. Here’s an example of how you can use the DateTime class to get the total number of days in a PHP month.

$month = 2; $year = 2022; $start_date = new DateTime("$year-$month-01"); $end_date = new DateTime("$year-$month-" . $start_date->format('t')); $interval = $start_date->diff($end_date); $days_in_month = $interval->days + 1; echo $days_in_month; 

This code will output the total number of days in February 2022.

Laravel-Specific Methods for Getting Days in a Month

If you are using Laravel, you can utilize the Carbon class to get the total number of days in a PHP month. Here’s an example:

use Carbon\Carbon;$month = 2; $year = 2022; $days_in_month = Carbon::createFromDate($year, $month)->daysInMonth; echo $days_in_month; 

This code will output the total number of days in February 2022 using Laravel’s Carbon class.

Other helpful PHP code examples to get the total number of days in a month

In php, php get total amount of days in month code example

$DaysInCurrentMonth = date('t');

In php, php calculate days of a month code example

cal_days_in_month(CAL_GREGORIAN, $month, $year)

Conclusion

In conclusion, knowing how to get the total number of days in a PHP month is an essential skill for any developer. This guide has provided various methods to accomplish this task, including using the date() function, cal_days_in_month() function, date_diff() function, get_days_in_month() method, cal_days_in_month() to calculate the number of days in each month for a given year, counting the number of business days in a month, getting the total working days of a given month, using the DateTime class to calculate the difference between two dates, and Laravel-specific methods for getting days in a month. By utilizing any of these methods, you can accurately determine the total number of days in a PHP month for your programming projects.

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