(PHP 5 >= 5.3.0)
DateTime::diff -- DateTimeImmutable::diff -- DateTimeInterface::diff -- date_diff — Returns the difference between two DateTime objects
Stile orientato agli oggetti
$datetime2
[, bool $absolute = false
] )$datetime2
[, bool $absolute = false
] )Stile procedurale
$datetime1
, DateTimeInterface $datetime2
[, bool $absolute = false
] )Returns the difference between two DateTimeInterface objects.
datetimeThe date to compare to.
absoluteShould the interval be forced to be positive?
The DateInterval object representing the
difference between the two dates o FALSE in caso di fallimento.
Example #1 DateTime::diff() example
Stile orientato agli oggetti
<?php
$datetime1 = new DateTime('2009-10-11');
$datetime2 = new DateTime('2009-10-13');
$interval = $datetime1->diff($datetime2);
echo $interval->format('%R%a days');
?>
Stile procedurale
<?php
$datetime1 = date_create('2009-10-11');
$datetime2 = date_create('2009-10-13');
$interval = date_diff($datetime1, $datetime2);
echo $interval->format('%R%a days');
?>
I precedenti esempi visualizzeranno:
+2 days
Example #2 DateTime object comparison
Nota:
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);
?>
Il precedente esempio visualizzerà:
bool(false) bool(true) bool(false)