Cache bins the interpreter keeps in memory instead of in this tenant's SQLite.
MEMORY_CACHE_BINS=none is the off switch (an unset and an empty variable are the same string in
a Worker env). Comma-separated bin names without the cache_ prefix, filtered to [a-z0-9_]
because the value reaches generated PHP.
Cache bins the interpreter keeps in memory instead of in this tenant's SQLite.
MEMORY_CACHE_BINS=noneis the off switch (an unset and an empty variable are the same string in a Worker env). Comma-separated bin names without thecache_prefix, filtered to[a-z0-9_]because the value reaches generated PHP.