Implement arbitrary string interpolation

[iluuu1994]

https://wiki.php.net/rfc/arbitrary_string_interpolation

[iluuu1994]

The feedback for this RFC was mostly negative and controversial so I have no immediate plans to pursue this.

[innocenzi]

Oh, that's a shame. I was looking forward to a better string interpolation with PHP.

Seems like people on externals.io don't have much consideration for DX... when they suggest sprintf over string interpolation, they forget that it's much more verbose, and while it is indeed more readable in some cases, it's not the case for all cases.

Hopefully we'll still have the feature someday, like multiline short closures.

[iluuu1994]

I'm afraid that the majority of people will be in one of two camps:

1. They'll prefer sprintf and co.
2. They'll like string interpolation but will prefer some other syntax

I don't think a single person apart from Rowan spoke favorably of the RFC. Maybe that's attributable to the participation bias, I don't know.

[toxyy]

I have been looking for a way to do this for ages. I would very much appreciate it if you would reconsider opening back up this RFC.