datetime.setdate(3) [php man page]
DATETIME.SETDATE(3) 1 DATETIME.SETDATE(3) DateTime::setDate - Sets the date Object oriented style SYNOPSIS
public DateTime DateTime::setDate (int $year, int $month, int $day) DESCRIPTION
Procedural style DateTime date_date_set (DateTime $object, int $year, int $month, int $day) Resets the current date of the DateTime object to a different date. PARAMETERS
o $object -Procedural style only: A DateTime object returned by date_create(3). The function modifies this object. o $year - Year of the date. o $month - Month of the date. o $day - Day of the date. RETURN VALUES
Returns the DateTime object for method chaining or FALSE on failure. CHANGELOG
+--------+---------------------------------------------------+ |Version | | | | | | | Description | | | | +--------+---------------------------------------------------+ | 5.3.0 | | | | | | | Changed the return value on success from NULL to | | | DateTime. | | | | +--------+---------------------------------------------------+ EXAMPLES
Example #1 DateTime.setDate(3) example Object oriented style <?php $date = new DateTime(); $date->setDate(2001, 2, 3); echo $date->format('Y-m-d'); ?> Procedural style <?php $date = date_create(); date_date_set($date, 2001, 2, 3); echo date_format($date, 'Y-m-d'); ?> The above examples will output: 2001-02-03 Example #2 Values exceeding ranges are added to their parent values <?php $date = new DateTime(); $date->setDate(2001, 2, 28); echo $date->format('Y-m-d') . " "; $date->setDate(2001, 2, 29); echo $date->format('Y-m-d') . " "; $date->setDate(2001, 14, 3); echo $date->format('Y-m-d') . " "; ?> The above example will output: 2001-02-28 2001-03-01 2002-02-03 SEE ALSO
DateTime.setISODate(3), DateTime.setTime(3). PHP Documentation Group DATETIME.SETDATE(3)
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DATETIME.DIFF(3) 1 DATETIME.DIFF(3) DateTime::diff - Returns the difference between two DateTime objects Object oriented style SYNOPSIS
public DateInterval DateTime::diff (DateTimeInterface $datetime2, [bool $absolute = false]) DESCRIPTION
DateInterval DateTimeImmutable::diff (DateTimeInterface $datetime2, [bool $absolute = false]) DateInterval DateTimeInterface::diff (Date- TimeInterface $datetime2, [bool $absolute = false]) Procedural style DateInterval date_diff (DateTimeInterface $datetime1, DateTimeInterface $datetime2, [bool $absolute = false]) Returns the difference between two DateTimeInterface objects. PARAMETERS
o $datetime - The date to compare to. o $absolute - Should the interval be forced to be positive? RETURN VALUES
The DateInterval object representing the difference between the two dates or FALSE on failure. EXAMPLES
Example #1 DateTime.diff(3) example Object oriented style <?php $datetime1 = new DateTime('2009-10-11'); $datetime2 = new DateTime('2009-10-13'); $interval = $datetime1->diff($datetime2); echo $interval->format('%R%a days'); ?> Procedural style <?php $datetime1 = date_create('2009-10-11'); $datetime2 = date_create('2009-10-13'); $interval = date_diff($datetime1, $datetime2); echo $interval->format('%R%a days'); ?> The above examples will output: +2 days Example #2 DateTime object comparison Note As of PHP 5.2.2, DateTime objects can be compared using comparison operators. <?php $date1 = new DateTime("now"); $date2 = new DateTime("tomorrow"); var_dump($date1 == $date2); var_dump($date1 < $date2); var_dump($date1 > $date2); ?> The above example will output: bool(false) bool(true) bool(false) SEE ALSO
DateInterval.format(3), DateTime.add(3), DateTime.sub(3). PHP Documentation Group DATETIME.DIFF(3)