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Date: Fri, 10 May 2024 18:24:58 +0200
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Subject: Re: [PHP-DEV] [RFC] Transform exit() from a language construct into a
 standard function
To: Jorg Sowa <jorg.sowa@gmail.com>, Derick Rethans <derick@php.net>
Cc: =?UTF-8?Q?Fl=C3=A1vio_Heleno?= <flaviohbatista@gmail.com>,
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From: tim@bastelstu.be (=?UTF-8?Q?Tim_D=C3=BCsterhus?=)

Hi

On 5/9/24 16:17, Jorg Sowa wrote:
>> I don't think there are any other "functions" like this.
> 
> What about list(), isset(), print(), echo(), require(), include(), unset(),
> empty()? We use them the same way as functions, but those are not real
> functions.

All of them require to be followed by an expression (or some other 
non-empty token), thus they do not act like constants the same way 
'exit' and 'die' do:

- unset, isset, empty, list must be followed by '('.
- echo is a statement and needs to be terminated with ';'.
- print is an expression and requires a single non-empty expression.
- The include family is an expression and requires a single non-empty 
expression.

Best regards
Tim Düsterhus

PS: Today I learned that echo and print are not aliases.