Re: [Discussion] Variable Type Declaration Before Usage

On Mon, Nov 6, 2023 at 3:08 AM David Gebler <davidgebler@gmail.com> wrote: > > On Sun, Nov 5, 2023 at 1:37 PM Oladoyinbo Vincent <oladoyinbov@gmail.com> > wrote: > > > Hello Internals, > > > > I was wondering if php could introduce this feature or if any experienced C > > dev here can work on the implementation of this feature. > > > > > I think this is a much bigger issue than bikeshedding over syntax. The idea > of typed variables has been discussed a few times in recent years but the > roadblocks have been efficiency of any possible implementation, BC in > respect of places type hinting can already be used and the overall > usefulness / desirability of the feature. It's one of those things that's > been filled in reasonably well by third party static analysis tools. Tbh > I'd be more interested in an official static analyzer than more type checks > at runtime. It's also worth adding that many times, certain functions cannot be chained elegantly or the nesting level gets out of hand, making reusing variables a way to handle that: $name = implode(' ', array_map(ucfirst(...), $name)); might be more readable to write as: $name = array_map(ucfirst(...), $name); $name = implode(' ', $name); In this case, $name turns from an array to a string. Having to come up with unique enough variable names just to satisfy type-checking would be rather annoying (and it is in other languages).