On Fri, Mar 18, 2022 at 09:02 Chase Peeler <chasepee...@gmail.com> wrote:
> On Fri, Mar 18, 2022 at 12:49 AM Theodore Brown <theodor...@outlook.com>
> wrote:
> >
> > Personally I'm really looking forward to having this functionality.
> > Just a couple days ago I wanted to call a function in an interpolated
> > string, and it was really annoying to have to wrap the function in a
> > closure in order to use it.
> >
> > If this RFC is accepted I'd be able to replace code like this:
> >
> > $name = "Theodore Brown";
> > $strlen = fn(string $string): int => strlen($string);
> > echo "{$name} has a length of {$strlen($name)}.";
> >
> > with
> >
> > $name = "Theodore Brown";
> > echo "{$name} has a length of {$:strlen($name)}.";
>
>
> Out of curiosity, why not:
>
> $name = "Theodore Brown";
> echo "{$name} has a length of ".strlen($name).".";
>
> or even
>
> $name = "Theodore Brown";
> $len = strlen($name);
> echo "{$name} has a length of {$len}.";
Concatenation works fine for a simple example like this, but it can
get a lot messier when there are more than a few embedded variables.
It's particularly an issue with heredoc strings which are far more
cumbersome to concatenate.
Yes, it's possible to add extra variables before the string like in
your second example, but this feels like unnecessary work, especially
when you already have all the variables you want and just want to
apply a function to them at several places in a template string.
Theodore
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