Nova Problems with PHP Opcache on PHP 8.2?

[ziming]

• Laravel Version: 9.47
• Nova Version: 4.20.2
• PHP Version: 8.2.1
• Database Driver & Version: MySQL 8
• Operating System and Version: Ubuntu 22.04.1 LTS
• Browser type and version: Chrome Latest Stable

Description:

Since upgrading to PHP 8.2, My production server have been throwing intermittent errors in the following forms when accessing the Nova admin section of my site. 2, they only happen at the admin section of my website, which is using Nova

• Class Laravel\Nova\Metrics\MySqlTrendDateExpression cannot extend interface from
• Class Illuminate\Database\Eloquent\Relations\MorphMany cannot extend interface from
• Class Illuminate\Database\Eloquent\Relations\MorphPivot cannot extend final class tryFrom
• Illuminate\Database\Eloquent\Relations\HasOne cannot use from - it is not a trait
• Cannot instantiate interface from (Laravel\Nova\Fields\BelongsTo::makeFilter)
• Cannot instantiate abstract class from (Laravel\Nova\Http\Requests\ResourceSearchRequest::filters)

From my observation, it seem to only happen when OPcache is turned on in PHP 8.2, if I turn off OPcache or downgrade to PHP 8.1, the problems seem to disappear. But if op cache is off, my nova admin is very slow

I have also tried to uninstall PHP 8.1 and ensure only PHP 8.2 runs on my server, disable & re enable op cache on my server

[juse-less]

@ziming There's a hard-to-debug issue in PHP itself, that seems to affect a lot of people since PHP 8.2.

See, for instance, this issue: php/php-src#9675.
There's a possible fix for it here: php/php-src#10143, but may require you to compile the patch yourself.
Depending on your situation, you may be able to use the Docker images or tarball mentioned here: php/php-src#10143 (comment).