opcache.file_cache
INI  • Added in PHP 7.0  
opcache: opcache.file_cache — Enables and sets the second level cache directory. It should improve performance when SHM memory is full, at server restart or SHM reset. The default "" disables file based caching. 
| Default value | empty | 
| Development value | empty | 
| Production value | empty | 
Modifiability: INI_SYSTEM - The opcache.file_cache INI directive directive is a system-directive, and can only be configured in php.ini files or Server-API configuration files such as Apache httpd.conf. It cannot be configured with ini_set calls.
Changes to the opcache.file_cache INI 
PHP 7.0
- INI directive added
opcache.file_cache INI Availability
opcache.file_cache INI Availability| PHP Version | Availability | 
|---|---|
| PHP 8.6Future Release | Yes | 
| PHP 8.5Upcoming Release | Yes | 
| PHP 8.4Supported (Latest) | Yes | 
| PHP 8.3Supported | Yes | 
| PHP 8.2Security-Fixes Only | Yes | 
| PHP 8.1Security-Fixes Only | Yes | 
| PHP 8.0Unsupported | Yes | 
| PHP 7.4Unsupported | Yes | 
| PHP 7.3Unsupported | Yes | 
| PHP 7.2Unsupported | Yes | 
| PHP 7.1Unsupported | Yes | 
| PHP 7.0Unsupported | Yes | 
| PHP 5.6Unsupported | No | 
| PHP 5.5Unsupported | No | 
| PHP 5.4Unsupported | No | 
| PHP 5.3Unsupported | No |