PHP | DatePeriod getDateInterval() Function

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The DatePeriod::getDateInterval() function is an inbuilt function in PHP which is used to return the date interval for the given date period.

Syntax:

DateInterval DatePeriod::getDateInterval( void )

Parameters: This function does not accept any parameters.

Return Value: This function returns the DateInterval object of the given date period.

Below programs illustrate the DatePeriod::getDateInterval() function in PHP:

Program 1:

<?php 
  
// Create a new DatePeriod object 
$DP = new DatePeriod('R7/2019-09-25T12:30:00Z/P5D'); 
  
// Calling the DatePeriod::getDateInterval() function 
$dateInterval = $DP->getDateInterval(); 
  
// Getting the date interval of the given DatePeriod 
echo $dateInterval->format('%d days'); 
  
?> 

Output:

5 days

Program 2:

<?php 
  
// Declare the start date 
$start_date = new DateTime('2019-09-01'); 
  
// Declare the DateInterval 
$interval = new DateInterval('P5D'); 
  
// Declare the end date 
$end_date = new DateTime('2019-09-30'); 
  
// Create a new DatePeriod object 
$DP = new DatePeriod($start_date, $interval, $end_date); 
  
// Calling the DatePeriod::getDateInterval() function 
$dateInterval = $DP->getDateInterval(); 
  
// Getting the date interval of the given DatePeriod 
echo $dateInterval->format('%d days'); 
  
?> 