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Date: Wed, 12 May 2021 16:15:46 +0200
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Subject: Re: [PHP-DEV] Disable interactive mode (-a) if readline not available
From: bobwei9@hotmail.com (Bob Weinand)

> Am 12.05.2021 um 10:12 schrieb Nikita Popov <nikita.ppv@gmail.com>:
>=20
> Hi internals,
>=20
> If the readline extension is enabled, PHP provides an interactive shell
> under -a. If it is not enabled, it falls back to an "interactive mode"
> (yes, the difference between "interactive shell" and "interactive mode" i=
s
> important here). The interactive mode is simply an stdin input, which nee=
ds
> to be terminated using Ctrl+D. You can only run one script that way.
>=20
> I think the current behavior is quite confusing, because it's really not
> obvious that you ended up in this fallback mode (you need to know the
> difference between "shell" and "mode" in the output) and most people
> wouldn't know what to do with it. The latest instance of this is
> https://bugs.php.net/bug.php?id=3D81033.
>=20
> I think we would be better off disabling -a completely if readline is not
> available, and exit with a helpful error message. I've opened
> https://github.com/php/php-src/pull/6976 to that effect. Does that sound
> reasonable?
>=20
> Regards,
> Nikita

Hey Nikita,

yes, please merge that PR, I've been annoyed more than once that the php -a=
 was not actually interactive despite a seemingly good message. (and as cmb=
 noted, it's effectively identical to bare php without args.)

Bob=