AW: AW: [PHP-DEV] FILTER_VALIDATE_INT and +0/-0

> So the question is only whether "+0" or "-0" (or "+0", etc.) > should be > accepted as integers by FILTER_VALIDATE_INT. I think they should, > because > we also accept non-canonical inputs such as "+5", i.e., we always > accept a > sign. It's true that 0 is neither positive or negative, but I don't > think > "accepts a leading sign, except if it's 0" is a good option. It's an > unnecessary special case. I was misguided by two statements, I'm sorry. The 1st: In my opinion FILTER_VALIDATE_INT must work like var_dump(-0); (BR #54096) The 2nd: "Treat "+0" and "-0" as valid integers just like var_dump() does." (https://github.com/php/php-src/pull/248) Both statements are wrong, since the purpose of the filter extension is to validate strings. I found this information in BR #52884 (see last comment). Maybe it should be added to the docs? It's nonsense to say, that FILTER_VALIDATE_INT must work like var_dump() since they are both serving different purposes. With this information I agree on your opinion. var_dump(filter_var('-0',FILTER_VALIDATE_INT)); // int(0) instead of the prior bool(false) var_dump('-0'); // string(2) "-0" var_dump(is_int('-0')); // bool(false)