PHP Warning: Cannot declare class PHPCoord\Point, because the name is already in use

[DavidBennettUK]

We're seeing the below warnings in our logs on every request. It seems like the aliases defined in bc_namespace.php may be being declared twice. Any ideas why this might be? This only seems to be happening in production, we don't get these in development - so hard to provide a reproducer.

This is on PHP 8.3 with a standard Composer setup with Symfony 6.4.

NOTICE: PHP message: PHP Warning: Cannot declare class PHPCoord\Point, because the name is already in use in vendor/php-coord/php-coord/src/bc_namespace.php on line 13
NOTICE: PHP message: PHP Warning: Cannot declare class PHPCoord\BritishNationalGridPoint, because the name is already in use in vendor/php-coord/php-coord/src/bc_namespace.php on line 14
NOTICE: PHP message: PHP Warning: Cannot declare class PHPCoord\CompoundPoint, because the name is already in use in vendor/php-coord/php-coord/src/bc_namespace.php on line 15
NOTICE: PHP message: PHP Warning: Cannot declare class PHPCoord\GeocentricPoint, because the name is already in use in vendor/php-coord/php-coord/src/bc_namespace.php on line 16
NOTICE: PHP message: PHP Warning: Cannot declare class PHPCoord\GeographicPoint, because the name is already in use in vendor/php-coord/php-coord/src/bc_namespace.php on line 17
NOTICE: PHP message: PHP Warning: Cannot declare class PHPCoord\IrishGridPoint, because the name is already in use in vendor/php-coord/php-coord/src/bc_namespace.php on line 18
NOTICE: PHP message: PHP Warning: Cannot declare class PHPCoord\IrishTransverseMercatorPoint, because the name is already in use in vendor/php-coord/php-coord/src/bc_namespace.php on line 19
NOTICE: PHP message: PHP Warning: Cannot declare class PHPCoord\ProjectedPoint, because the name is already in use in vendor/php-coord/php-coord/src/bc_namespace.php on line 20
NOTICE: PHP message: PHP Warning: Cannot declare class PHPCoord\UTMPoint, because the name is already in use in vendor/php-coord/php-coord/src/bc_namespace.php on line 21
NOTICE: PHP message: PHP Warning: Cannot declare class PHPCoord\VerticalPoint, because the name is already in use in vendor/php-coord/php-coord/src/bc_namespace.php on line 22

[dvdoug]

That's...really weird. And it's complaining about the aliases, not the actual class names 🤔

Do you have any PHPCoord related config inside Symfony? e.g. maybe service autowiring is getting confused?

[DavidBennettUK]

I've finally got to the bottom of it. It was only happening in production as it's caused by having OPCache preloading enabled. I found another project having a similar issue and have applied the same fix in a PR here: #69

[dvdoug]

Ah nice