Re: PHP 8 is_file/is_dir input handling
| From: | Christoph M. Becker | Date: | Tue, 01 Dec 2020 17:24:35 +0000 |
| Subject: | Re: PHP 8 is_file/is_dir input handling | ||
| References: | 1 | Groups: | php.internals |
| Request: | Send a blank email to internals+get-112334@lists.php.net to get a copy of this message | ||
On 01.12.2020 at 18:18, Aimeos | Norbert Sendetzky wrote:
> PHP 8 is stricter in checking input data then PHP 7. This is good but
> has some side effects for is_file(), is_dir() and similar functions when
> invalid paths are passed for checking.
>
> In PHP 7, this returns FALSE:
>
> php -r 'var_dump(is_file("ab\0c"));'
>
> In PHP 8, the same code throws a ValueException. Problem is now that
> it's not possible to check upfront if the passed argument is a valid
> path to avoid the exception being thrown.
This is only about the NUL byte in the filename. You can easily check
for that yourself. :)
Regards,
Christoph