As stated in docs: https://secure.php.net/manual/en/opcache.configuration.php#ini.opcache.max-accelerated-files, the maximum is now
1000000
> The maximum value is 100000 in PHP < 5.5.6, and
1000000 in later versions.
;opcache.interned_strings_buffer=4
; The maximum number of keys (scripts) in the OPcache hash table.
-; Only numbers between 200 and 100000 are allowed.
+; Only numbers between 200 and 1000000 are allowed.
;opcache.max_accelerated_files=2000
; The maximum percentage of "wasted" memory until a restart is scheduled.
;opcache.interned_strings_buffer=4
; The maximum number of keys (scripts) in the OPcache hash table.
-; Only numbers between 200 and 100000 are allowed.
+; Only numbers between 200 and 1000000 are allowed.
;opcache.max_accelerated_files=2000
; The maximum percentage of "wasted" memory until a restart is scheduled.