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Date: Wed, 29 May 2024 22:58:35 +0200
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Subject: Re: [PHP-DEV] [Discussion] Why can't I do "{$a::class}"?
To: Robert Landers <landers.robert@gmail.com>,
 Peter Stalman <sarkedev@gmail.com>
Cc: internals@lists.php.net
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From: tim@bastelstu.be (=?UTF-8?Q?Tim_D=C3=BCsterhus?=)

Hi

On 5/19/24 12:39, Robert Landers wrote:
> In general, it would be nice to have some proper inline string
> templating, like other languages (js, C#, etc). At least some way to
> evaluate an expression and format. I'm thinking like in C#:
> 
> $"Price: {price:C2}, Quantity: {quantity}, Discount: {discount:P1},
> Total after discount: {(price * quantity * (1 - discount)):N2}"
> 
> Price is formatted using currency with 2 decimal places, discount is
> formatted using percentage and one decimal, and N is a number format
> with 2 decimals.

While I can get behind allowing arbitrary expressions for ease of use, 
the formatting suffixes you suggested effectively replicate what 
`sprintf` already does for you, just with an "incompatible syntax".

In fact for proper number and currency formatting you would likely need 
intl's MessageFormatter anyways, which already supports those kind of 
placeholders in a standardized fashion.

Best regards
Tim Düsterhus