$datetime
=
'DateTime instance'
$interval
=
'DateInterval instance'
$string
=
'2000-01-11'
#1
|
DateTime::add
|
(/* $timezone = "UTC" */ |
#2
|
DateTime::add
|
(/* $timezone = "UTC" */ |
#3
|
DateTime::add
|
(/* $timezone = "UTC" */ |
#4
|
DateTime::add
|
(/* $timezone = "UTC" */ |
#5
|
DateTime::add
|
(/* $timezone = "UTC" */ |