preg_replace(string, null) is allowed?

Thanks!

There is a reason why it is not supported anymore?

There is a difference in output or performance, maybe?

Atenciosamente,
David Rodrigues

Em qua., 17 de fev. de 2021 às 17:37, Nikita Popov nikita.ppv@gmail.com
escreveu:

On Wed, Feb 17, 2021 at 9:28 PM David Rodrigues david.proweb@gmail.com
wrote:

Hello!

I am in doubt if passing null as the second argument to preg_replace() is
valid. Actually, it works as expected.

https://3v4l.org/0TITS

But doc only accepts array|string.

I am asking for it because PhpStorm will not accept it. So if it is valid,
I will do a PR to PS stubs.

On PHP 8.1.0-dev your example prints:

Deprecated: `preg_replace()`: Passing null to parameter #2

($replacement) of type array|string is deprecated in %s on line 3

Under strict_types=1 it already throws.

So no, it is not valid.

Regards,
Nikita