Notice that `error_reporting` CANNOT be interpolated with an environment variable (e.g. `error_reporting = ${PHP_ERROR_REPORTING}`).
`error_reporting` is treated differently than other directives:
if assigned an environment variable, this will be silently ignored and replaced with value `0` (aka no-reporting).
I couldn't find documentation about it.
Is maybe an info that should be added in https://github.com/php/php-src/blob/8f5156fcba9906664ecd97e4c279ee980e522121/php.ini-production#L451-L500 ?
I am not aware if this specific behavior affects only `error_reporting` or also other directive.