安裝此 PECL 擴展相關(guān)的信息可在手冊中標題為 PECL 擴展的安裝章節中找到。更多信息如新的發(fā)行版本、下載、源文件、 維護人員信息及變更日志等，都在此處： ? https://pecl.php.net/package/apcu.
PHP 7 has a separate module (? apcu-bc) for backwards compatibility with APC.
In backward compatibility mode, APCu registers the applicable APC functions with backward compatible prototypes.
Where an APC function accepted cache_type, it is simply
ignored by the backward compatible version, and omitted from the prototype for
the APCu version.
As of PHP 8.0.0, apcu-bc is no longer supported.
注意: On Windows, APCu needs a temp path to exist, and be writable by the web server. It checks the TMP, TEMP and USERPROFILE environment variables in that order and finally tries the WINDOWS directory if none of those are set.
注意: For more in-depth, highly technical implementation details, see the ? developer-supplied TECHNOTES file .
APCu sources can be found ? here.