Bug #77072 [Opn]: DateInterval constructor should provide a way to construct a negative interval

Edit report at https://bugs.php.net/bug.php?id=77072&edit=1 ID: 77072 Updated by: requinix@php.net Reported by: teo8976 at gmail dot com Summary: DateInterval constructor should provide a way to construct a negative interval Status: Open Type: Bug -Package: PHP Language Specification +Package: Date/time related Operating System: all PHP Version: 7.3.0RC4 Block user comment: N Private report: N New Comment: ISO 8601's syntax does not support negative intervals so PHP shouldn't either, but the constructor could have a second $inverted=0 argument. Previous Comments: ------------------------------------------------------------------------ [2018-10-27 17:24:01] teo8976 at gmail dot com Description: ------------ A DateInterval object can represent negative intervals, when its $invert property equals 1. However, there's no way (or no documented way) to construct a DateInterval object that is inverted with the constructor. Yoy need to do: $interval = new DateInterval("whatever"); $interval->inverted = 1; It's absolutely ridiculous and pathetic that there exist values that can be represented by the class but cannot be created with the constructor. The interval_spec should support a way to specify inverted intervals. Any of these would be fine, it's just a matter of taste: - prefix the interval with a "-" (minus) sign e.g. "-P1Y3D" - a "-" (minus) sign after the initial P e.g. "P-1Y3D" - some suffix at the end, for example "I" for "Inverted" e.g. "P1Y3DN" ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=77072&edit=1