On Fri, Jul 24, 2020 at 2:54 PM Derek Bonner <de...@derekbonner.com> wrote:

> * memory_limit = ${PHP_MEMORY_LIMIT:-"default value"}
> * memory_limit = ${PHP_MEMORY_LIMIT::"default value"}
> * memory_limit = ${PHP_MEMORY_LIMIT:="default value"}
> * memory_limit = ${PHP_MEMORY_LIMIT=="default value"}

Not a fan of special syntax for environment variables regardless of
the syntax.  I think `$_ENV['foo'] ?? 'bar'` is fine as-is.  Not so
much the superglobal, but there's also getenv().

--c

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