DateTimeImmutable::add
Returns a new object, with added amount of days, months, years, hours, minutes and seconds
&reftitle.description;
public DateTimeImmutableDateTimeImmutable::add
DateIntervalinterval
Creates a new DateTimeImmutable object, and adds the
specified DateInterval object to this, to represent
the new value.
&reftitle.parameters;
interval
A DateInterval object
&reftitle.returnvalues;
&date.datetimeimmutable.return.modifiedobject;
&reftitle.examples;
<function>DateTimeImmutable::add</function> example
&style.oop;
add(new DateInterval('P10D'));
echo $newDate->format('Y-m-d') . "\n";
?>
]]>
Further <function>DateTimeImmutable::add</function> examples
add(new DateInterval('PT10H30S'));
echo $newDate->format('Y-m-d H:i:s') . "\n";
$date = new DateTimeImmutable('2000-01-01');
$newDate = $date->add(new DateInterval('P7Y5M4DT4H3M2S'));
echo $newDate->format('Y-m-d H:i:s') . "\n";
?>
]]>
&example.outputs;
Beware when adding months
add($interval);
echo $newDate1->format('Y-m-d') . "\n";
$newDate2 = $newDate1->add($interval);
echo $newDate2->format('Y-m-d') . "\n";
?>
]]>
&example.outputs;
&reftitle.seealso;
DateTimeImmutable::sub
DateTimeImmutable::diff
DateTimeImmutable::modify