(PHP 5 >= 5.3.0, PHP 7, PHP 8)
DateTime::sub -- date_sub — Subtracts an amount of days, months, years, hours, minutes and seconds from a DateTime object
Object-oriented style
Procedural style
Modifies the specified DateTime object, by subtracting the specified DateInterval object.
Like DateTimeImmutable::sub() but works with DateTime.
The procedural version takes the DateTime object as its first argument.
objectProcedural style only: A DateTime object returned by date_create(). The function modifies this object.
interval
A DateInterval object
Returns the modified DateTime object for method chaining.
Object Orientated API only: If an unsupported operation is attempted, such as using a
DateInterval object representing relative time
specifications such as next weekday, a
DateInvalidOperationException is thrown.
| Version | Description |
|---|---|
| 8.3.0 | Now throws a DateInvalidOperationException with DateTime::sub(), instead of a warning when an unsupported operation is attempted. date_sub() has not been changed. |