(PHP 5 >= 5.5.11, PHP 7, PHP 8, PECL ZendOpcache >= 7.0.4)
opcache_is_script_cached — Tells whether a script is cached in OPCache
This function checks if a PHP script has been cached in OPCache. This can be used to more easily detect the "warming" of the cache for a particular script. This function only checks in-memory cache, not file cache.
filenameThe path to the PHP script to be checked.