The DatePeriod::getStartDate() function is an inbuilt function in PHP which is used to return the start date of the given date period.
Syntax:
DateTimeInterface DatePeriod::getStartDate( void )
Parameters: This function does not accept any parameters.
Return Value: This function returns the start date of the given date period.
Below programs illustrate the DatePeriod::getStartDate() function in PHP:
Program 1:
<?php // Initialising a startDate with time $StartDate = new DateTime('2019-05-16T00:00:00Z'); // Initialising a DateInterval of 2 day $DateInterval = new DateInterval('P2D'); // Initialising a endDate with time $EndDate = new DateTime('2019-05-20T00:00:00Z'); // Initialising a DatePeriod with startDate, DateInterval and // endDate $datePeriod = new DatePeriod( $StartDate, $DateInterval, $EndDate); // Calling the getStartDate() function $StartDate = $datePeriod->getStartDate(); // Getting the start date echo $StartDate->format(DateTime::ISO8601); ?> |
Output:
2019-05-16T00:00:00+0000
Program 2:
<?php // Initialising a DatePeriod with a date of 2019-09-30, // time of 10 hours, 40 minutes and 44 seconds and with // day period of 14 days $datePeriod = new DatePeriod('R7/2019-09-30T10:40:44Z/P14D'); // Calling the getStartDate() function $StartDate = $datePeriod->getStartDate(); // Getting the start date echo $StartDate->format(DateTime::ISO8601); ?> |
Output:
2019-09-30T10:40:44+0000
Reference: https://www.php.net/manual/en/dateperiod.getstartdate.php
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