Re: [RFC] [VOTE] Saner numeric strings

Am 16.07.2020 um 16:18 schrieb G. P. B. <george.banyard@gmail.com>: > I've opened voting for the Saner Numeric strings RFC: > https://wiki.php.net/rfc/saner-numeric-strings Looking at the BC section I stumbled across > Code relying on the fact that '' (an empty string) evaluates to 0 for > arithmetic/bitwise operations. which is elaborated further down as > The third reason already emitted an E_WARNING. We considered special-casing this to evaluate to > 0, but this would be inconsistent with how type declarations deal with an empty string, namely > throwing a TypeError. Therefore a TypeError will also be emitted in this case. The error can be > avoided by explicitly checking for an empty string and changing it to 0. but now I'm a bit confused what is meant by "arithmetic/bitwise operations". I assume this applies only to things like substr("foo", "") but not to arithmetic *operators* like 42 + "" because that doesn't currently trigger E_WARNING AFAIK. Maybe this should be clarified? Regards, - Chris