Le lun. 28 juil. 2025 à 12:18, Claude Pache <claude.pa...@gmail.com> a écrit : > This is not correct: 2**53 + 1 is perfectly “safe” (for 64-bit builds of > PHP), see: https://3v4l.org/P939d > > The specific notion of “safe integer” as introduced in JavaScript makes sense > only for numbers encoded using IEEE 754, which is what PHP uses for `float`. > In PHP, there is a specialised type for integers, so that the need of such a > function is not clear, because every integer encoded as `int` is “safe”. Or > maybe you want something like `is_safe_integer_when_interpreted_as_float()`? > > Also, note that the particular Symfony example given at the beginning of this > thread uses a function that expects a string, not an int or a float. In that > example, something like > `is_numeric_value_producing_exact_integer_when_interpreted_as_float()` could > have been useful, but this use case is very specialised. > > —Claude
Right! I think we found Gina proposed a nice alternative. I wrote a few specs in my last thread message in response to Gina. Please let me know if there's something that is unclear or bothering you. Best, Alexandre Daubois
