Re: [RFC][Under discussion] Arbitrary string interpolation

Le 18/03/2022 à 15:02, Chase Peeler a écrit :

On Fri, Mar 18, 2022 at 12:49 AM Theodore Brown <theodorejb@outlook.com> wrote:

On Thu, Mar 17, 2022 at 5:40 PM Tobias Nyholm <tobias.nyholm@gmail.com> wrote:

On Thu, 17 Mar 2022, 23:27 Ilija Tovilo, <tovilo.ilija@gmail.com> wrote:

Hi everyone I'd like to start discussion on a new RFC for arbitrary string interpolation. https://wiki.php.net/rfc/arbitrary_string_interpolation Let me know what you think.

That is a cool idea. But I am not a big fan of having code in strings. Wouldn’t this open the door to all kinds of new attacks?

Do you have an example of a new kind of attack this would allow? The proposal doesn't enable interpolation of strings coming from a database or user input - it only applies to string literals directly in PHP code. 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}.";

I guess it's a matter of taste and convention. Sometime, it make sense and it's just easier to just use string interpolation (for example with multiline templates). Regards, -- Pierre