To modify milliseconds and microseconds use next formats:
<?php
$a = new \DateTimeImmutable('2018-01-01 00:00:00.000');
$b = $a->modify('9 msec');
var_dump($b->format('Y-m-d H:i:s.u'));
?>
Returns string(26) "2018-01-01 00:00:00.009000"
<?php
$a = new \DateTimeImmutable('2018-01-01 00:00:00.000');
$b = $a->modify('9 usec');
var_dump($b->format('Y-m-d H:i:s.u'));
?>
Returns "2018-01-01 00:00:00.000009"
DateTimeImmutable::modify
(PHP 5 >= 5.5.0, PHP 7, PHP 8)
DateTimeImmutable::modify — Creates a new object with modified timestamp
Description
Creates a new DateTimeImmutable object with modified timestamp. The original object is not modified.
Parameters
-
object -
Procedural style only: A DateTime object returned by date_create(). The function modifies this object.
-
modifier -
A date/time string. Valid formats are explained in Date and Time Formats.
Return Values
Returns the newly created object or false on failure.
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User Contributed Notes 1 note
dmytro dot sokil at gmail dot com ¶
6 years ago
